youtube.de

youtube.de is SSL secured

Free website and domain report on youtube.de

Last Updated: 8th June, 2023 Update Now
Overview

Snoop Summary for youtube.de

This is a free and comprehensive report about youtube.de. Youtube.de is hosted in United States on a server with an IP address of 142.251.40.110, where USD is the local currency and the local language is English. Our records indicate that youtube.de is owned/operated by Google LLC. Youtube.de is expected to earn an estimated $93 USD per day from advertising revenue. The sale of youtube.de would possibly be worth $68,164 USD. This figure is based on the daily revenue potential of the website over a 24 month period. Youtube.de is wildly popular with an estimated 22,077 daily unique visitors. This report was last updated 8th June, 2023.

About youtube.de

Site Preview: youtube.de youtube.de
Title: YouTube
Description: Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.
Keywords and Tags: camera phone, free, media sharing, popular, sharing, streaming media, upload, video, video phone
Related Terms: and youtube, apk4free youtube, are youtube, at youtube, youtube abonnenten, youtube dl, youtube teluguone, youtube to fb, youtube to mo3, youtube to mp3juice
Fav Icon:
Age:
Domain Created:
Domain Updated:
Domain Expires:
Review

Snoop Score

3/5 (Great!)

Valuation

$68,164 USD
Note: All valuation figures are estimates.

Popularity

High
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 34,055
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 22,077
Monthly Visitors: 671,954
Yearly Visitors: 8,058,105
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $93 USD
Monthly Revenue: $2,842 USD
Yearly Revenue: $34,077 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: youtube.de 10
Domain Name: youtube 7
Extension (TLD): de 2

Page Speed Analysis

Average Load Time: 0.09 seconds
Load Time Comparison: Faster than 99% of sites

PageSpeed Insights

Avg. (All Categories) 65
Performance 34
Accessibility 87
Best Practices 83
SEO 75
PWA 44
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.youtube.com/
Updated: 25th January, 2023

1.06 seconds
First Contentful Paint (FCP)
87%
6%
7%

0.01 seconds
First Input Delay (FID)
92%
4%
4%

Simulate loading on desktop
34

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for youtube.de. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0.033
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

Properly size images — Potential savings of 246 KiB
Images can slow down the page's load time. Youtube.de should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://i.ytimg.com/vi/CqK41FkXLhI/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDiiiauilugeQ5sW6aOMf0e7qXuSw
54660
47862
https://i.ytimg.com/vi/tRQnsWrAlWQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCfgxAjxXkagwPDkVMiXNPs8EJG-Q
45354
39713
https://i.ytimg.com/vi/jfKfPfyJRdk/hq720_live.jpg?sqp=CICkxZ4G-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLA6mJmd4n44VmL_Xjai9ZSzLHSRKg
38438
33657
https://i.ytimg.com/vi/LYGofnqtsEk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLA6Xiqey-_1AwLtB8I7bh_eN5p8nw
36072
31585
https://i.ytimg.com/vi/G7KNmW9a75Y/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBzJT6kBLvuPLltJWidznISKT3NjQ
35884
31421
https://i.ytimg.com/vi/MjrbbZGR7Ok/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBM8hjUFgowWWqPxmRU7ZiQg4jPWA
21282
18635
https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d4293961921b0966a5c5d1217dceeea689d8dd762b9f6de3d4b8ce5_2560x520.jpeg
22017
16513
https://i.ytimg.com/vi/pjxa_BEZOHU/hq720_live.jpg?sqp=CICkxZ4G-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDKag557CbUF540JpzhtXd278tjNA
17786
15574
https://i.ytimg.com/vi/Wp-avXNtabw/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLChusnet9RB0Gi6yBHrJzNq51n2TQ
13418
11749
https://www.gstatic.com/youtube/img/promos/growth/1263f05576c9f137587330f92e03e0a725f426fd9d40d28a8942692dc8f6b210_640x48.png
6735
5051
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Youtube.de should consider lazy-loading offscreen and hidden images.
Minify CSS — Potential savings of 29 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Youtube.de should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
html:not(.style-scope) { --primary-text-color: var(--light-theme-text-color); --primary-backgrou...
431008
29619
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Youtube.de should consider minifying JS files.
Reduce unused CSS — Potential savings of 451 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Youtube.de should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
html:not(.style-scope) { --primary-text-color: var(--light-theme-text-color); --primary-backgrou...
431008
410903
https://www.youtube.com/s/player/4248d311/www-player.css
50706
50706
Efficiently encode images — Potential savings of 13 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d4293961921b0966a5c5d1217dceeea689d8dd762b9f6de3d4b8ce5_2560x520.jpeg
22017
13813
Serve images in next-gen formats — Potential savings of 19 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d4293961921b0966a5c5d1217dceeea689d8dd762b9f6de3d4b8ce5_2560x520.jpeg
22017
18980.4
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Youtube.de should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Avoid chaining critical requests — 17 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Youtube.de should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 30 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
mark_rsef_dpj
Mark
2628.812
mark_rsae_dpj
Mark
2629.519
mark_js_r
Mark
2629.835
mark_ac
Mark
2630.155
mark_apr
Mark
2630.564
mark_pdc
Mark
2630.847
mark_pdr
Mark
2662.233
mark_gcc
Mark
2664.377
mark_dl
Mark
2708.363
mark_pr
Mark
2747.846
mark_lps
Mark
2768.843
mark_hgcr
Mark
2940.558
mark_pdl
Mark
2942.017
mark_nd
Mark
2942.853
mark_pda
Mark
3001.552
mark_adl
Mark
3008.236
mark_bcp
Mark
3008.712
mark_cpt
Mark
3956.187
mark_gle
Mark
4105.507
mark_gle
Mark
4167.746
mark_gpe
Mark
4185.036
mark_gpe
Mark
4185.262
mark_pe
Mark
4621.437
mark_pot_isc
Mark
4666.211
mark_fs
Mark
4680.466
mark_pot_ist
Mark
4780.099
mark_pot_if
Mark
5007.384
mark_pot_cms
Mark
5007.872
mark_pot_cmf
Mark
5009.118
mark_cmi
Mark
5366.994
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 65 requests • 3,075 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
65
3148664
Script
14
2394624
Image
20
328218
Document
2
164006
Other
15
107238
Stylesheet
6
63938
Font
4
61555
Media
4
29085
Third-party
39
585028
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
108437
0
78804
0
63130
0
2524
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
Avoid large layout shifts — 2 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.032646528325015
9.7597992003035E-5
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 8 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/desktop_polymer.vflset/desktop_polymer.js
2530
703
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
3432
427
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/desktop_polymer.vflset/desktop_polymer.js
3284
143
https://www.youtube.com/s/player/4248d311/player_ias.vflset/en_US/base.js
4711
115
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/spf.vflset/spf.js
5066
110
https://www.youtube.com/s/player/4248d311/player_ias.vflset/en_US/base.js
4831
86
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/desktop_polymer.vflset/desktop_polymer.js
4060
69
https://www.youtube.com/s/player/4248d311/player_ias.vflset/en_US/base.js
4649
62
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Audits

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://youtube.de/
http/1.1
0
40.686999971513
399
0
301
application/binary
https://youtube.de/
http/1.1
40.956999990158
80.742999969516
1402
0
301
application/binary
https://www.youtube.com/?gl=DE
h2
80.996999982744
760.07499999832
74060
796710
200
text/html
Document
https://i.ytimg.com/generate_204
h2
777.18699997058
779.49499996612
268
0
204
text/plain
Other
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/desktop_polymer.vflset/desktop_polymer.js
h2
777.29800000088
853.13299996778
1661407
9991794
200
text/javascript
Script
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
h2
777.75700000348
782.42299996782
15966
50695
200
text/javascript
Script
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/custom-elements-es5-adapter.vflset/custom-elements-es5-adapter.js
h2
777.96300000045
783.47500000382
1547
1980
200
text/javascript
Script
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/webcomponents-sd.vflset/webcomponents-sd.js
h2
778.08799996274
783.24799996335
23661
78244
200
text/javascript
Script
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/intersection-observer.min.vflset/intersection-observer.min.js
h2
778.1669999822
834.78400000604
2891
5547
200
text/javascript
Script
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/scheduler.vflset/scheduler.js
h2
778.2850000076
782.95899997465
3413
6750
200
text/javascript
Script
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/www-i18n-constants-en_US.vflset/www-i18n-constants.js
h2
778.44399999594
782.16899995459
2330
5107
200
text/javascript
Script
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/www-tampering.vflset/www-tampering.js
h2
778.59499998158
781.97000001092
4256
10010
200
text/javascript
Script
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/spf.vflset/spf.js
h2
778.73699995689
782.70499996142
14325
39697
200
text/javascript
Script
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/network.vflset/network.js
h2
778.9449999691
785.46899999492
6001
13822
200
text/javascript
Script
https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&family=YouTube+Sans:wght@300..900&display=swap
h2
779.06199998688
785.84500000579
1575
10856
200
text/css
Stylesheet
https://www.youtube.com/s/desktop/82a4cf4f/cssbin/www-main-desktop-home-page-skeleton.css
h2
779.2489999556
783.81100000115
1611
4107
200
text/css
Stylesheet
https://www.youtube.com/s/desktop/82a4cf4f/cssbin/www-onepick.css
h2
779.43499997491
783.62100000959
1032
841
200
text/css
Stylesheet
https://www.youtube.com/s/_/ytmainappweb/_/ss/k=ytmainappweb.kevlar_base.CpqFn3c0xgQ.L.B1.O/am=gAI/d=0/br=1/rs=AGKMywEMTxouj4mvVeZS4qapdHjJWVQkJA
h2
779.83099996345
786.15599998739
7273
56384
200
text/css
Stylesheet
https://www.youtube.com/s/desktop/82a4cf4f/cssbin/www-main-desktop-watch-page-skeleton.css
h2
780.12599999784
784.05799996108
1741
5073
200
text/css
Stylesheet
https://accounts.google.com/ServiceLogin?service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Ddesktop%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dpassive&hl=en
http/1.1
862.47200000798
881.42099999823
1733
0
302
text/html
https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
h2
863.5409999988
867.55199998152
11955
11028
200
font/woff2
Font
https://accounts.google.com/v3/signin/identifier?dsh=S-2147058214%3A1674662593326356&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Ddesktop%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dpassive&hl=en&passive=true&service=youtube&uilel=3&flowName=GlifWebSignIn&flowEntry=ServiceLogin&ifkv=AWnogHeoLZ9rmUVgfHAtY1c0efe582x9oqEjcJIhCjy9QlXGwePN7g_zh1qGcjqtwvsu0s1ibD2CXQ
h2
881.70199998422
1002.9919999652
89946
0
200
text/html
Document
https://www.gstatic.com/youtube/img/emojis/emojis-svg-9.json
h2
1620.3199999873
1648.8499999978
48578
925282
200
application/json
XHR
https://googleads.g.doubleclick.net/pagead/id
http/1.1
2283.2729999791
2705.76599997
782
0
302
text/html
https://www.youtube.com/s/search/audio/failure.mp3
h2
2625.5369999562
2629.6539999894
7316
6529
206
audio/mpeg
Media
https://www.youtube.com/s/search/audio/no_input.mp3
h2
2626.1819999781
2630.0339999725
7624
6953
206
audio/mpeg
Media
https://www.youtube.com/s/search/audio/open.mp3
h2
2626.6529999557
2631.1969999806
6838
6167
206
audio/mpeg
Media
https://www.youtube.com/s/search/audio/success.mp3
h2
2627.0260000019
2630.7749999687
7307
6636
206
audio/mpeg
Media
https://googleads.g.doubleclick.net/pagead/id?slf_rd=1
h2
2706.0249999631
2710.5959999608
877
100
200
application/json
XHR
https://fonts.gstatic.com/s/roboto/v30/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2
h2
2898.4589999891
2901.5519999666
11884
11072
200
font/woff2
Font
https://www.youtube.com/youtubei/v1/guide?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8&prettyPrint=false
h2
2961.6410000017
2978.4499999951
3626
16969
200
application/json
Fetch
https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d4293961921b0966a5c5d1217dceeea689d8dd762b9f6de3d4b8ce5_2560x520.jpeg
h2
2999.4099999894
3002.7469999623
22755
22017
200
image/jpeg
Image
https://fonts.gstatic.com/s/roboto/v30/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2
h2
3005.8309999877
3008.7799999746
11852
11040
200
font/woff2
Font
https://fonts.gstatic.com/s/youtubesans/v18/Qw38ZQNGEDjaO2m6tqIqX5E-AVS5_rSejo46_PCTRspJ0OosolrBEJL3HO_T7fHoCVHx.woff2
h2
3723.2300000032
3726.372999954
25864
25052
200
font/woff2
Font
https://www.google.com/pagead/lvz?evtid=AC6ezLjxhARBrknoBQHF8ZpNLIpPENnauE4pYq48andqdN3Bh5_fcr4-p7LMWAmlao4sz9-5LG3qZJBtwK3dLG9r4jKMq5t5cg&req_ts=1674662593&pg=MainAppBootstrap%3AHome&az=1&sigh=AJT_CidX2-X56OU-NZZsuQZseguRNbQgrg
h2
3888.387999963
3901.5629999922
1025
42
200
image/gif
Image
https://www.google.be/pagead/lvz?evtid=AC6ezLjxhARBrknoBQHF8ZpNLIpPENnauE4pYq48andqdN3Bh5_fcr4-p7LMWAmlao4sz9-5LG3qZJBtwK3dLG9r4jKMq5t5cg&req_ts=1674662593&pg=MainAppBootstrap%3AHome&az=1&sigh=AJT_CidX2-X56OU-NZZsuQZseguRNbQgrg
h2
3888.5569999693
3895.606999984
547
42
200
image/gif
Image
https://www.youtube.com/youtubei/v1/feedback?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8&prettyPrint=false
h2
3992.1229999745
4034.6419999842
1516
2627
200
application/json
Fetch
https://yt3.ggpht.com/c_zqSYR5xP7lgDO8xZtbQ67MXhOel1cHlSpUTvNgQN-QOEfLcLan6-owiGECb5xE8Qid3zJUxA=s88-c-k-c0x00ffffff-no-rj
h2
4002.5390000083
4006.7120000022
4496
3978
200
image/jpeg
Image
https://yt3.ggpht.com/ytc/AL5GRJWf-kd_Q-_p2OyxGoa1QkfT9tRvWhX3kchDRggS7Q=s68-c-k-c0x00ffffff-no-rj
h2
4002.6310000103
4021.2919999612
2779
2153
200
image/jpeg
Image
https://yt3.ggpht.com/ytc/AL5GRJWM0evAfYeOkmwiVwCXWcQclJkakCMD21x0cs22EQ=s68-c-k-c0x00ffffff-no-rj
h2
4002.8629999724
4006.1479999567
4505
3879
200
image/jpeg
Image
https://yt3.ggpht.com/KNYElmLFGAOSZoBmxYGKKXhGHrT2e7Hmz3WsBerbam5uaDXFADAmT7htj3OcC-uK1O88lC9fQg=s68-c-k-c0x00ffffff-no-rj
h2
4003.4940000041
4007.4669999885
4701
4067
200
image/jpeg
Image
https://www.gstatic.com/youtube/img/promos/growth/1263f05576c9f137587330f92e03e0a725f426fd9d40d28a8942692dc8f6b210_640x48.png
h2
4003.704999981
4010.6359999627
7471
6735
200
image/png
Image
https://yt3.ggpht.com/ytc/AMLnZu8TTP7TH2Ewe6pMkWA46CBfX7ggDyTNamPdMXIk=s68-c-k-c0x00ffffff-no-rj
h2
4004.0169999702
4008.1800000044
3833
3324
200
image/jpeg
Image
https://yt3.ggpht.com/ytc/AL5GRJXgaE5h2aRNWHJcMqAoimkDSY6ZEAvTRPbahg2Jvg=s68-c-k-c0x00ffffff-no-rj
h2
4004.1579999961
4007.6349999872
2780
2155
200
image/jpeg
Image
https://yt3.ggpht.com/ytc/AL5GRJUXPY-iRN76QrT5IXlf8hevJ8WBL8wWbTfUkkyhEg=s68-c-k-c0x00ffffff-no-rj
h2
4004.4219999691
4007.8259999864
3002
2376
200
image/jpeg
Image
https://yt3.ggpht.com/ytc/AL5GRJWNXT0wb4KEP4__02feiwFYeMsD4P-EXnPd9lT17e0hHg4-1nVM8-C3AddkXy10=s68-c-k-c0x00ffffff-no-rj
h2
4004.5880000107
4011.7529999698
1493
882
200
image/jpeg
Image
https://i.ytimg.com/vi/G7KNmW9a75Y/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBzJT6kBLvuPLltJWidznISKT3NjQ
h2
4005.9949999559
4011.2000000081
36634
35884
200
image/webp
Image
https://i.ytimg.com/vi/pjxa_BEZOHU/hq720_live.jpg?sqp=CICkxZ4G-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDKag557CbUF540JpzhtXd278tjNA
h2
4006.6319999751
4011.5440000081
18510
17786
200
image/webp
Image
https://i.ytimg.com/vi/tRQnsWrAlWQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCfgxAjxXkagwPDkVMiXNPs8EJG-Q
h2
4006.9579999545
4014.5739999716
46102
45354
200
image/webp
Image
https://i.ytimg.com/vi/jfKfPfyJRdk/hq720_live.jpg?sqp=CICkxZ4G-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLA6mJmd4n44VmL_Xjai9ZSzLHSRKg
h2
4007.1449999814
4013.9809999964
39162
38438
200
image/webp
Image
https://i.ytimg.com/vi/MjrbbZGR7Ok/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBM8hjUFgowWWqPxmRU7ZiQg4jPWA
h2
4007.4069999973
4014.2939999932
22031
21282
200
image/webp
Image
https://i.ytimg.com/vi/LYGofnqtsEk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLA6Xiqey-_1AwLtB8I7bh_eN5p8nw
h2
4008.3759999834
4015.8569999621
36822
36072
200
image/webp
Image
https://i.ytimg.com/vi/CqK41FkXLhI/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDiiiauilugeQ5sW6aOMf0e7qXuSw
h2
4008.8589999941
4016.1499999813
55406
54660
200
image/webp
Image
https://i.ytimg.com/vi/Wp-avXNtabw/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLChusnet9RB0Gi6yBHrJzNq51n2TQ
h2
4008.9019999723
4017.3929999582
14164
13418
200
image/webp
Image
https://www.youtube.com/s/player/4248d311/player_ias.vflset/en_US/base.js
h2
4408.5970000015
4441.3929999573
612046
2198246
200
text/javascript
Script
https://www.youtube.com/s/player/4248d311/www-player.css
h2
4408.9129999629
4431.9059999543
50706
368291
200
text/css
Stylesheet
https://www.youtube.com/youtubei/v1/log_event?alt=json&key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8
h2
4481.7889999831
4499.2109999876
392
28
200
application/json
XHR
https://www.youtube.com/s/player/4248d311/player_ias.vflset/en_US/offline.js
h2
4680.6820000056
4687.1870000032
30730
128642
200
text/javascript
Script
https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/Create
h2
4783.0390000017
4790.4759999947
675
0
200
text/html
Preflight
https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/Create
h2
4790.9269999946
4810.7069999678
31738
67713
200
application/json+protobuf
XHR
https://static.doubleclick.net/instream/ad_status.js
h2
4794.2699999548
4798.0119999847
865
29
200
text/javascript
Script
https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/GenerateIT
h2
4981.5179999568
4988.3459999692
559
0
200
text/html
Preflight
https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/GenerateIT
h2
4989.5379999653
5003.8589999895
672
94
200
application/json+protobuf
XHR
https://www.youtube.com/youtubei/v1/att/get?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8&prettyPrint=false
h2
5796.7519999947
5818.2880000095
14021
19107
200
application/json
XHR
https://www.google.com/js/th/J0Wtb-3apQjiEgHhOVup9kp7pTLa1a3i127gprViyoA.js
h2
5823.4620000003
5828.1689999858
15186
36988
200
text/javascript
Script
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
763.794
21.123
805.746
5.575
837.747
24.243
866.342
9.229
1004.547
5.999
1175.293
10.776
1186.075
1406.848
2597.133
20.174
2628.432
37.098
2671.959
15.923
2691.025
13.61
2720.91
286.989
3007.97
9.994
3022.534
854.302
3876.882
79.09
3958.991
51.14
4013.839
26.719
4041.84
16.863
4062.095
6.01
4068.846
5.055
4081.027
34.418
4116.485
11.406
4132.426
49.206
4185.567
86.773
4276.366
137.29
4413.747
13.357
4434.68
7.633
4448.043
12.586
4468.031
6.346
4564.083
61.607
4625.796
16.999
4646.073
115.11
4777.291
6.944
4790.212
5.068
4812.662
171.291
5790.533
7.634
5831.491
8.232
5839.747
219.699
6059.506
14.018
6279.329
9.944
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Metrics

First Contentful Paint — 1.1 s
The time taken for the first image or text on the page to be rendered.

Other

Eliminate render-blocking resources — Potential savings of 430 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Youtube.de should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&family=YouTube+Sans:wght@300..900&display=swap
1575
230
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
15966
80
Avoid multiple page redirects — Potential savings of 340 ms
Redirects can cause additional delays before the page can begin loading. Youtube.de should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://youtube.de/
190
https://youtube.de/
150
https://www.youtube.com/?gl=DE
0
Preload Largest Contentful Paint image — Potential savings of 270 ms
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d4293961921b0966a5c5d1217dceeea689d8dd762b9f6de3d4b8ce5_2560x520.jpeg
270
Avoid enormous network payloads — Total size was 3,075 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/desktop_polymer.vflset/desktop_polymer.js
1661407
https://www.youtube.com/s/player/4248d311/player_ias.vflset/en_US/base.js
612046
https://accounts.google.com/v3/signin/identifier?dsh=S-2147058214%3A1674662593326356&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Ddesktop%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dpassive&hl=en&passive=true&service=youtube&uilel=3&flowName=GlifWebSignIn&flowEntry=ServiceLogin&ifkv=AWnogHeoLZ9rmUVgfHAtY1c0efe582x9oqEjcJIhCjy9QlXGwePN7g_zh1qGcjqtwvsu0s1ibD2CXQ
89946
https://www.youtube.com/?gl=DE
74060
https://i.ytimg.com/vi/CqK41FkXLhI/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDiiiauilugeQ5sW6aOMf0e7qXuSw
55406
https://www.youtube.com/s/player/4248d311/www-player.css
50706
https://www.gstatic.com/youtube/img/emojis/emojis-svg-9.json
48578
https://i.ytimg.com/vi/tRQnsWrAlWQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCfgxAjxXkagwPDkVMiXNPs8EJG-Q
46102
https://i.ytimg.com/vi/jfKfPfyJRdk/hq720_live.jpg?sqp=CICkxZ4G-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLA6mJmd4n44VmL_Xjai9ZSzLHSRKg
39162
https://i.ytimg.com/vi/LYGofnqtsEk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLA6Xiqey-_1AwLtB8I7bh_eN5p8nw
36822
Reduce JavaScript execution time — 3.1 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/desktop_polymer.vflset/desktop_polymer.js
1886.294
1233.103
147.631
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
1133.431
914.69499999998
1.033
https://www.youtube.com/s/player/4248d311/player_ias.vflset/en_US/base.js
401.381
343.502
35.541
https://www.youtube.com/?gl=DE
319.707
141.079
28.111
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/spf.vflset/spf.js
222.992
216.097
1.608
Unattributable
172.866
4.979
0

Metrics

Time to Interactive — 5.2 s
The time taken for the page to become fully interactive.
Speed Index — 3.9 s
The time taken for the page contents to be visibly populated.
Total Blocking Time — 1,320 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Largest Contentful Paint — 3.7 s
The timing of the largest text or image that is painted.

Audits

Max Potential First Input Delay — 700 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 3.4 s
The time taken for the primary content of the page to be rendered.

Other

Reduce unused JavaScript — Potential savings of 1,121 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/desktop_polymer.vflset/desktop_polymer.js
1661407
700065
https://www.youtube.com/s/player/4248d311/player_ias.vflset/en_US/base.js
612046
422317
https://www.youtube.com/s/player/4248d311/player_ias.vflset/en_US/offline.js
30730
25496
Reduce initial server response time — Root document took 680 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.youtube.com/?gl=DE
680.064
Serve static assets with an efficient cache policy — 19 resources found
Youtube.de can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://i.ytimg.com/vi/CqK41FkXLhI/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDiiiauilugeQ5sW6aOMf0e7qXuSw
300000
55406
https://i.ytimg.com/vi/tRQnsWrAlWQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCfgxAjxXkagwPDkVMiXNPs8EJG-Q
300000
46102
https://i.ytimg.com/vi/jfKfPfyJRdk/hq720_live.jpg?sqp=CICkxZ4G-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLA6mJmd4n44VmL_Xjai9ZSzLHSRKg
300000
39162
https://i.ytimg.com/vi/pjxa_BEZOHU/hq720_live.jpg?sqp=CICkxZ4G-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDKag557CbUF540JpzhtXd278tjNA
300000
18510
https://i.ytimg.com/vi/Wp-avXNtabw/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLChusnet9RB0Gi6yBHrJzNq51n2TQ
300000
14164
https://static.doubleclick.net/instream/ad_status.js
900000
865
https://www.gstatic.com/youtube/img/promos/growth/dc5b9cb12d4293961921b0966a5c5d1217dceeea689d8dd762b9f6de3d4b8ce5_2560x520.jpeg
3000000
22755
https://www.gstatic.com/youtube/img/promos/growth/1263f05576c9f137587330f92e03e0a725f426fd9d40d28a8942692dc8f6b210_640x48.png
3000000
7471
https://i.ytimg.com/vi/LYGofnqtsEk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLA6Xiqey-_1AwLtB8I7bh_eN5p8nw
7200000
36822
https://i.ytimg.com/vi/G7KNmW9a75Y/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBzJT6kBLvuPLltJWidznISKT3NjQ
7200000
36634
https://i.ytimg.com/vi/MjrbbZGR7Ok/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBM8hjUFgowWWqPxmRU7ZiQg4jPWA
7200000
22031
https://yt3.ggpht.com/KNYElmLFGAOSZoBmxYGKKXhGHrT2e7Hmz3WsBerbam5uaDXFADAmT7htj3OcC-uK1O88lC9fQg=s68-c-k-c0x00ffffff-no-rj
86400000
4701
https://yt3.ggpht.com/ytc/AL5GRJWM0evAfYeOkmwiVwCXWcQclJkakCMD21x0cs22EQ=s68-c-k-c0x00ffffff-no-rj
86400000
4505
https://yt3.ggpht.com/c_zqSYR5xP7lgDO8xZtbQ67MXhOel1cHlSpUTvNgQN-QOEfLcLan6-owiGECb5xE8Qid3zJUxA=s88-c-k-c0x00ffffff-no-rj
86400000
4496
https://yt3.ggpht.com/ytc/AMLnZu8TTP7TH2Ewe6pMkWA46CBfX7ggDyTNamPdMXIk=s68-c-k-c0x00ffffff-no-rj
86400000
3833
https://yt3.ggpht.com/ytc/AL5GRJUXPY-iRN76QrT5IXlf8hevJ8WBL8wWbTfUkkyhEg=s68-c-k-c0x00ffffff-no-rj
86400000
3002
https://yt3.ggpht.com/ytc/AL5GRJXgaE5h2aRNWHJcMqAoimkDSY6ZEAvTRPbahg2Jvg=s68-c-k-c0x00ffffff-no-rj
86400000
2780
https://yt3.ggpht.com/ytc/AL5GRJWf-kd_Q-_p2OyxGoa1QkfT9tRvWhX3kchDRggS7Q=s68-c-k-c0x00ffffff-no-rj
86400000
2779
https://yt3.ggpht.com/ytc/AL5GRJWNXT0wb4KEP4__02feiwFYeMsD4P-EXnPd9lT17e0hHg4-1nVM8-C3AddkXy10=s68-c-k-c0x00ffffff-no-rj
86400000
1493
Avoid an excessive DOM size — 9,531 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
9531
Maximum DOM Depth
30
Maximum Child Elements
425
Minimize main-thread work — 4.2 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
2883.716
Garbage Collection
291.681
Style & Layout
278.559
Script Parsing & Compilation
219.564
Parse HTML & CSS
218.587
Other
207.179
Rendering
86.228
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Source
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://www.gstatic.com/youtube/img/promos/growth/1263f05576c9f137587330f92e03e0a725f426fd9d40d28a8942692dc8f6b210_640x48.png
https://yt3.ggpht.com/c_zqSYR5xP7lgDO8xZtbQ67MXhOel1cHlSpUTvNgQN-QOEfLcLan6-owiGECb5xE8Qid3zJUxA=s88-c-k-c0x00ffffff-no-rj
https://yt3.ggpht.com/ytc/AL5GRJWf-kd_Q-_p2OyxGoa1QkfT9tRvWhX3kchDRggS7Q=s68-c-k-c0x00ffffff-no-rj
https://yt3.ggpht.com/ytc/AL5GRJWM0evAfYeOkmwiVwCXWcQclJkakCMD21x0cs22EQ=s68-c-k-c0x00ffffff-no-rj
https://yt3.ggpht.com/KNYElmLFGAOSZoBmxYGKKXhGHrT2e7Hmz3WsBerbam5uaDXFADAmT7htj3OcC-uK1O88lC9fQg=s68-c-k-c0x00ffffff-no-rj
https://yt3.ggpht.com/ytc/AMLnZu8TTP7TH2Ewe6pMkWA46CBfX7ggDyTNamPdMXIk=s68-c-k-c0x00ffffff-no-rj
https://yt3.ggpht.com/ytc/AL5GRJXgaE5h2aRNWHJcMqAoimkDSY6ZEAvTRPbahg2Jvg=s68-c-k-c0x00ffffff-no-rj
https://yt3.ggpht.com/ytc/AL5GRJUXPY-iRN76QrT5IXlf8hevJ8WBL8wWbTfUkkyhEg=s68-c-k-c0x00ffffff-no-rj
https://yt3.ggpht.com/ytc/AL5GRJWNXT0wb4KEP4__02feiwFYeMsD4P-EXnPd9lT17e0hHg4-1nVM8-C3AddkXy10=s68-c-k-c0x00ffffff-no-rj
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of youtube.de on mobile screens.
Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
87

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of youtube.de. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Youtube.de may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-*]` attributes do not match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
Failing Elements
ARIA `tooltip` elements do not have accessible names.
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
Failing Elements

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements
DE
Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
83

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that youtube.de should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Polymer
3.5.0
Hammer.js
2.0.2
SPF
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://youtube.de/
Allowed

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
Refused to display 'https://accounts.google.com/' in a frame because it set 'X-Frame-Options' to 'deny'.
Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://www.youtube.com/s/player/4248d311/player_ias.vflset/en_US/base.js
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/desktop_polymer.vflset/desktop_polymer.js
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/webcomponents-sd.vflset/webcomponents-sd.js
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/webcomponents-sd.vflset/blaze-out/k8-opt/bin/third_party/javascript/polymer/v2/webcomponentsjs/webcomponents-sd.js.sourcemap
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js.map
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/custom-elements-es5-adapter.vflset/custom-elements-es5-adapter.js
https://www.youtube.com/s/desktop/82a4cf4f/jsbin/custom-elements-es5-adapter.vflset/blaze-out/k8-opt/bin/third_party/javascript/custom_elements/fast-shim.js.sourcemap
https://www.google.com/js/th/J0Wtb-3apQjiEgHhOVup9kp7pTLa1a3i127gprViyoA.js
75

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for youtube.de. This includes optimizations such as providing meta data.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Mobile Friendly

Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of youtube.de on mobile screens.

Content Best Practices

Links do not have descriptive text — 1 link found
Make use of descriptive link text to assist search engines in understanding the content.

Crawling and Indexing

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
44

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of youtube.de. This includes details about web app manifests.

Installable

Web app manifest and service worker meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.

PWA Optimized

Registers a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.

PWA Optimized

Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of youtube.de on mobile screens.
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 58
Performance 21
Accessibility 82
Best Practices 75
SEO 84
PWA 30
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://m.youtube.com/
Updated: 25th January, 2023

2.55 seconds
First Contentful Paint (FCP)
49%
33%
18%

0.02 seconds
First Input Delay (FID)
90%
6%
4%

Simulate loading on mobile
21

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for youtube.de. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

Properly size images
Images can slow down the page's load time. Youtube.de should consider serving more appropriate-sized images.
Defer offscreen images — Potential savings of 4 KiB
Time to Interactive can be slowed down by resources on the page. Youtube.de should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
3800
3800
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Youtube.de should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Youtube.de should consider minifying JS files.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 590 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://m.youtube.com/?gl=DE
586.411
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Youtube.de should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Avoids enormous network payloads — Total size was 1,120 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://m.youtube.com/s/player/4248d311/player-plasma-ias-phone-en_US.vflset/base.js
378954
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=c3_base
274629
https://accounts.google.com/v3/signin/identifier?dsh=S1544279168%3A1674662637706956&continue=https%3A%2F%2Fm.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Dm%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dmobile_passive%26noapp%3D1&hl=en&ltmpl=mobile&passive=true&service=youtube&uilel=3&flowName=GlifWebSignIn&flowEntry=ServiceLogin&ifkv=AWnogHcDlsHZOczVfbsMD4fpUwVeE_Kn25U_R8PG-uyb2w74-zqh2PxbbC4FoC1Lb_4JBIb5wZYkBA
90916
https://m.youtube.com/s/_/ytmweb/_/ss/k=ytmweb.c3_base.WUJrcDa-9UE.L.W.O/am=SEBADA/d=0/br=1/rs=ABnK5FLsq_HSqr5rwOtJpPc4__s7YEVn0Q
57123
https://m.youtube.com/s/player/4248d311/mobile-polymer-player-svg-ias-mweb.css
54071
https://m.youtube.com/?gl=DE
39616
https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/Create
31662
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/exm=Rv3e3d,c3_base/ed=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=aDST8c,oKKiDe,W8Xq9b,SomnJf,xKfhhd,tLUXsc
24145
https://i.ytimg.com/vi/f5ksIepT2mE/hq720_2.jpg?sqp=-oaymwEdCJUDENAFSEbyq4qpAw8IARUAAIhCcAHAAQbQAQE=&rs=AOn4CLBT3n-wDR6D3Pp5eqAbAP9KEaWd7A
16517
https://i.ytimg.com/vi/uzINWRK23f4/hq720_2.jpg?sqp=-oaymwEdCJUDENAFSEbyq4qpAw8IARUAAIhCcAHAAQbQAQE=&rs=AOn4CLDVRdlPYUNHgvFC5WPkZhvIb7xkLg
16354
Avoids an excessive DOM size — 814 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
814
Maximum DOM Depth
24
Maximum Child Elements
20
Avoid chaining critical requests — 6 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Youtube.de should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 11 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
mark_rsef_dpj
Mark
961.564
mark_pdc
Mark
978.363
mark_pdr
Mark
991.954
mark_pr
Mark
994.096
mark_pe
Mark
1678.908
mark_pot_isc
Mark
1713.997
mark_fs
Mark
1732.656
mark_pot_ist
Mark
1817.601
mark_pot_if
Mark
2170.847
mark_pot_cms
Mark
2171.537
mark_pot_cmf
Mark
2173.542
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 41 requests • 1,120 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
41
1146968
Script
9
727066
Document
2
130532
Stylesheet
2
111194
Image
5
59505
Other
17
58805
Font
2
30433
Media
4
29433
Third-party
19
235342
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
107627
0
30433
0
2752
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
Avoid large layout shifts
Below is a list of all DOM elements that contribute to the CLS of the page.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 17 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://m.youtube.com/s/player/4248d311/player-plasma-ias-phone-en_US.vflset/base.js
11993
604
https://m.youtube.com/s/player/4248d311/player-plasma-ias-phone-en_US.vflset/base.js
12707
499
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=c3_base
11018
482
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=c3_base
5970
354
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/exm=Rv3e3d,c3_base/ed=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=aDST8c,oKKiDe,W8Xq9b,SomnJf,xKfhhd,tLUXsc
7920
249
https://m.youtube.com/s/player/4248d311/player-plasma-ias-phone-en_US.vflset/base.js
10770
246
https://m.youtube.com/?gl=DE
6425
215
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=c3_base
6643
183
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=c3_base
6952
176
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/exm=Rv3e3d,SomnJf,W8Xq9b,aDST8c,c3_base,oKKiDe,tLUXsc,xKfhhd/ed=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=ERsVff
8220
162
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=c3_base
6826
126
https://m.youtube.com/static/r/90ae96d5/scheduler.vflset/scheduler.js
6324
101
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/exm=c3_base/ed=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=Rv3e3d
7470
90
https://m.youtube.com/static/r/90ae96d5/fetch_polyfill.vflset/fetch_polyfill.js
3870
81
https://m.youtube.com/?gl=DE
634
80
https://m.youtube.com/s/player/4248d311/player-plasma-ias-phone-en_US.vflset/base.js
11563
63
https://m.youtube.com/?gl=DE
2820
53
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Image elements have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of youtube.de on mobile screens.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Audits

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://youtube.de/
http/1.1
0
25.548000005074
414
0
301
application/binary
https://youtube.de/
http/1.1
25.827999983449
87.949000007939
932
0
301
application/binary
https://www.youtube.com/?gl=DE
http/1.1
88.469000009354
127.66800000099
1430
0
302
application/binary
https://m.youtube.com/?gl=DE
h2
128.1359999557
713.55699998094
39616
294993
200
text/html
Document
https://m.youtube.com/static/r/90ae96d5/scheduler.vflset/scheduler.js
h2
727.33099997276
734.00599998422
3291
6750
200
text/javascript
Script
https://m.youtube.com/static/r/90ae96d5/fetch_polyfill.vflset/fetch_polyfill.js
h2
727.73899999447
734.49699999765
3581
9615
200
text/javascript
Script
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=c3_base
h2
728.00399997504
755.26299997
274629
922676
200
text/javascript
Script
https://m.youtube.com/s/_/ytmweb/_/ss/k=ytmweb.c3_base.WUJrcDa-9UE.L.W.O/am=SEBADA/d=0/br=1/rs=ABnK5FLsq_HSqr5rwOtJpPc4__s7YEVn0Q
h2
728.2309999573
766.57599996543
57123
471746
200
text/css
Stylesheet
data
745.99599995418
746.33200000972
0
3800
200
image/png
Image
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxPKTU1Kg.ttf
h2
758.42500000726
762.03099999111
15210
20864
200
font/ttf
Font
https://fonts.gstatic.com/s/roboto/v18/KFOlCnqEu92Fr1MmEU9fBBc9AMP6lQ.ttf
h2
758.75699997414
762.47099996544
15223
20860
200
font/ttf
Font
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/exm=c3_base/ed=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=Rv3e3d
h2
925.14899995876
933.95099998452
15600
52627
200
text/javascript
Script
https://accounts.google.com/ServiceLogin?ltmpl=mobile&service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fm.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Dm%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dmobile_passive%26noapp%3D1&hl=en
http/1.1
980.61099997722
1004.6629999997
1640
0
302
text/html
https://accounts.google.com/v3/signin/identifier?dsh=S1544279168%3A1674662637706956&continue=https%3A%2F%2Fm.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Dm%26hl%3Den%26next%3D%252Fsignin_passive%26feature%3Dmobile_passive%26noapp%3D1&hl=en&ltmpl=mobile&passive=true&service=youtube&uilel=3&flowName=GlifWebSignIn&flowEntry=ServiceLogin&ifkv=AWnogHcDlsHZOczVfbsMD4fpUwVeE_Kn25U_R8PG-uyb2w74-zqh2PxbbC4FoC1Lb_4JBIb5wZYkBA
h2
1005.1009999588
1084.8199999891
90916
0
200
text/html
Document
https://m.youtube.com/s/search/audio/failure.mp3
http/1.1
1091.8129999773
1127.3149999906
521
0
302
text/html
https://m.youtube.com/s/search/audio/no_input.mp3
http/1.1
1092.0959999785
1127.9459999641
522
0
302
text/html
https://m.youtube.com/s/search/audio/open.mp3
http/1.1
1092.9269999615
1127.6579999831
518
0
302
text/html
https://m.youtube.com/s/search/audio/success.mp3
http/1.1
1093.6649999931
1128.2030000002
390
0
302
text/html
https://m.youtube.com/youtubei/v1/guide?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8&prettyPrint=false
h2
1116.1989999819
1135.5359999579
2809
9677
200
application/json
Fetch
https://www.youtube.com/s/search/audio/failure.mp3
h2
1127.6399999624
1133.5059999838
7316
6529
206
audio/mpeg
Media
https://www.youtube.com/s/search/audio/open.mp3
h2
1127.9290000093
1134.6550000017
6954
6167
206
audio/mpeg
Media
https://www.youtube.com/s/search/audio/no_input.mp3
h2
1128.173999954
1134.2270000023
7740
6953
206
audio/mpeg
Media
https://www.youtube.com/s/search/audio/success.mp3
h2
1128.4349999623
1135.0919999531
7423
6636
206
audio/mpeg
Media
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/exm=Rv3e3d,c3_base/ed=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=aDST8c,oKKiDe,W8Xq9b,SomnJf,xKfhhd,tLUXsc
h2
1137.4109999742
1163.1349999807
24145
87115
200
text/javascript
Script
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/exm=Rv3e3d,SomnJf,W8Xq9b,aDST8c,c3_base,oKKiDe,tLUXsc,xKfhhd/ed=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=ERsVff
h2
1165.4080000008
1173.1140000047
10930
37173
200
text/javascript
Script
https://i.ytimg.com/vi/FDnabloiTsA/hq720.jpg?sqp=-oaymwEcCK4FEIIDSEbyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCDcgXnP52K2kcomxYVGAS3HbR4RA
h2
1376.0159999947
1383.6909999955
10795
10048
200
image/webp
Image
https://yt3.ggpht.com/wea2tTDPVCFmeEbO-_SZGf-fBmQ15Qd72vowTOkdDEouLl8dAl8s_Hv1yzChjxeWFdmWzHFjrg=s68-c-k-c0x00ffffff-no-rj
h2
1376.3529999997
1384.7620000015
1893
1262
200
image/jpeg
Image
https://i.ytimg.com/vi/uzINWRK23f4/hq720_2.jpg?sqp=-oaymwEdCJUDENAFSEbyq4qpAw8IARUAAIhCcAHAAQbQAQE=&rs=AOn4CLDVRdlPYUNHgvFC5WPkZhvIb7xkLg
h2
1376.6689999611
1384.0619999683
16354
15616
200
image/webp
Image
https://i.ytimg.com/vi/f5ksIepT2mE/hq720_2.jpg?sqp=-oaymwEdCJUDENAFSEbyq4qpAw8IARUAAIhCcAHAAQbQAQE=&rs=AOn4CLBT3n-wDR6D3Pp5eqAbAP9KEaWd7A
h2
1377.4850000045
1383.1260000006
16517
15776
200
image/webp
Image
https://i.ytimg.com/vi/e2N66nRy3dA/hq720_2.jpg?sqp=-oaymwEdCJUDENAFSEbyq4qpAw8IARUAAIhCcAHAAQbQAQE=&rs=AOn4CLDZuLONwWyn2Q_YV6NMlSViHi6Rzg
h2
1377.6910000015
1384.3239999842
13946
13332
200
image/webp
Image
https://googleads.g.doubleclick.net/pagead/id
http/1.1
1390.7209999743
1468.8580000075
896
0
302
text/html
https://googleads.g.doubleclick.net/pagead/id?slf_rd=1
h2
1469.3079999997
1473.8950000028
991
100
200
application/json
XHR
https://m.youtube.com/s/player/4248d311/player-plasma-ias-phone-en_US.vflset/base.js
h2
1491.0950000049
1526.0990000097
378954
1228512
200
text/javascript
Script
https://m.youtube.com/s/player/4248d311/mobile-polymer-player-svg-ias-mweb.css
h2
1492.613999988
1529.8440000042
54071
390972
200
text/css
Stylesheet
https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/Create
h2
1822.0950000104
1827.7549999766
673
0
200
text/html
Preflight
https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/Create
h2
1828.3559999545
1848.0349999736
31662
67465
200
application/json+protobuf
XHR
https://static.doubleclick.net/instream/ad_status.js
h2
1833.1619999954
1836.7560000042
865
29
200
text/javascript
Script
https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/GenerateIT
h2
2148.7709999783
2157.2779999697
673
0
200
text/html
Preflight
https://jnn-pa.googleapis.com/$rpc/google.internal.waa.v1.Waa/GenerateIT
h2
2157.9569999594
2166.4189999574
671
94
200
application/json+protobuf
XHR
https://m.youtube.com/youtubei/v1/att/get?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8&prettyPrint=false
h2
2843.5489999829
2866.4529999951
13555
18179
200
application/json
XHR
https://www.google.com/js/th/J0Wtb-3apQjiEgHhOVup9kp7pTLa1a3i127gprViyoA.js
h2
2872.2100000014
2877.783999953
15071
36988
200
text/javascript
Script
https://m.youtube.com/youtubei/v1/log_event?alt=json&key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8
h2
3489.7539999802
3505.1089999615
508
28
200
application/json
XHR
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
718.392
13.292
740.672
20.319
761.012
8.321
839.667
6.699
846.378
88.491
934.919
25.169
961.015
53.728
1015.638
8.979
1026.732
45.831
1079.223
5.039
1084.614
7.404
1095.033
22.61
1118.982
6.982
1129.895
6.185
1150.869
9.278
1179.268
124.428
1303.716
62.805
1368.661
5.905
1374.577
6.313
1381.134
40.434
1421.793
43.959
1473.4
5.235
1488.935
5.347
1533.236
10.918
1548.174
19.883
1611.202
8.926
1622.789
61.608
1685.497
120.595
1813.054
10.7
1829.515
5.039
1850.813
301.762
2168.359
5.592
2830.027
15.771
2845.82
6.614
2882.014
7.357
2889.699
249.706
3472.656
8.049
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Eliminate render-blocking resources — Potential savings of 750 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Youtube.de should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://m.youtube.com/s/_/ytmweb/_/ss/k=ytmweb.c3_base.WUJrcDa-9UE.L.W.O/am=SEBADA/d=0/br=1/rs=ABnK5FLsq_HSqr5rwOtJpPc4__s7YEVn0Q
57123
900
https://m.youtube.com/static/r/90ae96d5/scheduler.vflset/scheduler.js
3291
150
Preload Largest Contentful Paint image — Potential savings of 780 ms
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://i.ytimg.com/vi/FDnabloiTsA/hq720.jpg?sqp=-oaymwEcCK4FEIIDSEbyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCDcgXnP52K2kcomxYVGAS3HbR4RA
780
Serve static assets with an efficient cache policy — 6 resources found
Youtube.de can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://static.doubleclick.net/instream/ad_status.js
900000
865
https://i.ytimg.com/vi/f5ksIepT2mE/hq720_2.jpg?sqp=-oaymwEdCJUDENAFSEbyq4qpAw8IARUAAIhCcAHAAQbQAQE=&rs=AOn4CLBT3n-wDR6D3Pp5eqAbAP9KEaWd7A
7200000
16517
https://i.ytimg.com/vi/uzINWRK23f4/hq720_2.jpg?sqp=-oaymwEdCJUDENAFSEbyq4qpAw8IARUAAIhCcAHAAQbQAQE=&rs=AOn4CLDVRdlPYUNHgvFC5WPkZhvIb7xkLg
7200000
16354
https://i.ytimg.com/vi/e2N66nRy3dA/hq720_2.jpg?sqp=-oaymwEdCJUDENAFSEbyq4qpAw8IARUAAIhCcAHAAQbQAQE=&rs=AOn4CLDZuLONwWyn2Q_YV6NMlSViHi6Rzg
7200000
13946
https://i.ytimg.com/vi/FDnabloiTsA/hq720.jpg?sqp=-oaymwEcCK4FEIIDSEbyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCDcgXnP52K2kcomxYVGAS3HbR4RA
7200000
10795
https://yt3.ggpht.com/wea2tTDPVCFmeEbO-_SZGf-fBmQ15Qd72vowTOkdDEouLl8dAl8s_Hv1yzChjxeWFdmWzHFjrg=s68-c-k-c0x00ffffff-no-rj
86400000
1893

Metrics

First Contentful Paint — 6.3 s
The time taken for the first image or text on the page to be rendered.
Time to Interactive — 12.8 s
The time taken for the page to become fully interactive.
Speed Index — 8.2 s
The time taken for the page contents to be visibly populated.
Total Blocking Time — 2,180 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Largest Contentful Paint — 7.8 s
The timing of the largest text or image that is painted.

Audits

Max Potential First Input Delay — 600 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 6.6 s
The time taken for the primary content of the page to be rendered.

Other

Reduce unused CSS — Potential savings of 106 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Youtube.de should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://m.youtube.com/s/_/ytmweb/_/ss/k=ytmweb.c3_base.WUJrcDa-9UE.L.W.O/am=SEBADA/d=0/br=1/rs=ABnK5FLsq_HSqr5rwOtJpPc4__s7YEVn0Q
57123
54505
https://m.youtube.com/s/player/4248d311/mobile-polymer-player-svg-ias-mweb.css
54071
54022
Reduce unused JavaScript — Potential savings of 384 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://m.youtube.com/s/player/4248d311/player-plasma-ias-phone-en_US.vflset/base.js
378954
244635
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=c3_base
274629
148437
Avoid multiple page redirects — Potential savings of 1,890 ms
Redirects can cause additional delays before the page can begin loading. Youtube.de should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://youtube.de/
630
https://youtube.de/
480
https://www.youtube.com/?gl=DE
780
https://m.youtube.com/?gl=DE
0
Reduce JavaScript execution time — 5.0 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://m.youtube.com/s/player/4248d311/player-plasma-ias-phone-en_US.vflset/base.js
2563.868
2282.852
131.96
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=c3_base
1711.316
1316.3
71.436
https://m.youtube.com/?gl=DE
946.764
246.984
50.224
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/exm=Rv3e3d,c3_base/ed=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=aDST8c,oKKiDe,W8Xq9b,SomnJf,xKfhhd,tLUXsc
498.26
487.336
6.66
Unattributable
376.164
11.224
0
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/exm=Rv3e3d,SomnJf,W8Xq9b,aDST8c,c3_base,oKKiDe,tLUXsc,xKfhhd/ed=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=ERsVff
169.568
160.468
3.656
https://m.youtube.com/static/r/90ae96d5/scheduler.vflset/scheduler.js
125.516
109.932
1.36
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/exm=c3_base/ed=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=Rv3e3d
90.44
84.02
5.476
Minimize main-thread work — 6.6 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
4733.172
Other
710.56
Style & Layout
390.152
Script Parsing & Compilation
279.944
Rendering
178.384
Parse HTML & CSS
168.716
Garbage Collection
127.428
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Source
Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
First Contentful Paint (3G) — 13074 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.
82

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of youtube.de. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Youtube.de may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Best practices

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
75

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that youtube.de should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://youtube.de/
Allowed

Audits

Serves images with low resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
URL Displayed size Actual size Expected size
https://yt3.ggpht.com/wea2tTDPVCFmeEbO-_SZGf-fBmQ15Qd72vowTOkdDEouLl8dAl8s_Hv1yzChjxeWFdmWzHFjrg=s68-c-k-c0x00ffffff-no-rj
40 x 40
68 x 68
80 x 80

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
Refused to display 'https://accounts.google.com/' in a frame because it set 'X-Frame-Options' to 'deny'.
Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://m.youtube.com/s/player/4248d311/player-plasma-ias-phone-en_US.vflset/base.js
https://m.youtube.com/s/_/ytmweb/_/js/k=ytmweb.c3_base.en_US.qrYtVnxB8GA.O/am=SEA/d=1/br=1/rs=ABnK5FLRCZvD1IND_N1TZwG5XAIaKnVCbA/m=c3_base
https://www.google.com/js/th/J0Wtb-3apQjiEgHhOVup9kp7pTLa1a3i127gprViyoA.js
84

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for youtube.de. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of youtube.de on mobile screens.
Document uses legible font sizes — 99.78% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
ytm-pivot-bar-renderer
0.22%
11px
99.78%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 91% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
40x40
40x40

Content Best Practices

Links do not have descriptive text — 1 link found
Make use of descriptive link text to assist search engines in understanding the content.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
30

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of youtube.de. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of youtube.de on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 142.251.40.110
Continent: North America
Country: United States
United States Flag
Region:
City:
Longitude: -97.822
Latitude: 37.751
Currencies: USD
USN
USS
Languages: English

Web Hosting Provider

Name IP Address
Google LLC
Registration

Domain Registrant

Private Registration: No
Name:
Organization: Google LLC
Country: US
City:
State: CA
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness: 92/100
WOT Child Safety: 87/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: *.google.com
Issued By: GTS CA 1C3
Valid From: 2nd January, 2023
Valid To: 27th March, 2023
Subject: CN = *.google.com
Hash: f6dbf7a7
Issuer: CN = GTS CA 1C3
O = Google Trust Services LLC
S = US
Version: 2
Serial Number: 13271927108140114150238677407471990061
Serial Number (Hex): 09FC1486EBBE79090AC885814C1F752D
Valid From: 2nd January, 2024
Valid To: 27th March, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:8A:74:7F:AF:85:CD:EE:95:CD:3D:9C:D0:E2:46:14:F3:71:35:1D:27
Extended Key Usage: TLS Web Server Authentication
CRL Distribution Points:
Full Name:
URI:http://crls.pki.goog/gts1c3/fVJxbV-Ktmk.crl

Certificate Policies: Policy: 2.23.140.1.2.1
Policy: 1.3.6.1.4.1.11129.2.5.3

Authority Information Access: OCSP - URI:http://ocsp.pki.goog/gts1c3
CA Issuers - URI:http://pki.goog/repo/certs/gts1c3.der

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
Timestamp : Jan 2 09:17:48.881 2023 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:21:7C:E4:CA:0C:A8:34:E4:BF:58:DE:75:
79:6C:06:43:EF:46:F5:DF:2D:84:95:B0:46:9C:D8:4F:
25:24:DC:6E:02:21:00:C6:1F:0C:C0:51:E3:CE:E7:B7:
F6:E0:32:CE:DA:CA:74:9A:7C:4D:DD:28:02:16:E5:1C:
3F:7B:6E:CD:E8:9B:CD
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : B3:73:77:07:E1:84:50:F8:63:86:D6:05:A9:DC:11:09:
4A:79:2D:B1:67:0C:0B:87:DC:F0:03:0E:79:36:A5:9A
Timestamp : Jan 2 09:17:48.904 2023 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:15:68:B2:70:44:12:86:86:63:F5:E6:6A:
1F:EA:64:E0:5A:60:14:41:51:FA:AC:C2:CA:D3:34:48:
30:5F:81:76:02:20:1A:05:A1:3A:7C:C4:FF:4B:56:78:
60:A7:25:5C:FD:42:4A:A6:5C:4B:F1:EC:63:A5:6B:21:
B9:B5:DD:8A:35:C9
Key Usage: Digital Signature
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:*.2mdn-cn.net
DNS:*.admob-cn.com
DNS:*.ampproject.net.cn
DNS:*.ampproject.org.cn
DNS:*.android.com
DNS:*.app-measurement-cn.com
DNS:*.appengine.google.com
DNS:*.bdn.dev
DNS:*.cloud.google.com
DNS:*.crowdsource.google.com
DNS:*.dartsearch-cn.net
DNS:*.datacompute.google.com
DNS:*.doubleclick-cn.net
DNS:*.doubleclick.cn
DNS:*.flash.android.com
DNS:*.fls.doubleclick-cn.net
DNS:*.fls.doubleclick.cn
DNS:*.g.cn
DNS:*.g.co
DNS:*.g.doubleclick-cn.net
DNS:*.g.doubleclick.cn
DNS:*.gcp.gvt2.com
DNS:*.gcpcdn.gvt1.com
DNS:*.ggpht.cn
DNS:*.gkecnapps.cn
DNS:*.google-analytics-cn.com
DNS:*.google-analytics.com
DNS:*.google.ca
DNS:*.google.cl
DNS:*.google.co.in
DNS:*.google.co.jp
DNS:*.google.co.uk
DNS:*.google.com.ar
DNS:*.google.com.au
DNS:*.google.com.br
DNS:*.google.com.co
DNS:*.google.com.mx
DNS:*.google.com.tr
DNS:*.google.com.vn
DNS:*.google.de
DNS:*.google.es
DNS:*.google.fr
DNS:*.google.hu
DNS:*.google.it
DNS:*.google.nl
DNS:*.google.pl
DNS:*.google.pt
DNS:*.googleadapis.com
DNS:*.googleadservices-cn.com
DNS:*.googleapis-cn.com
DNS:*.googleapis.cn
DNS:*.googleapps-cn.com
DNS:*.googlecnapps.cn
DNS:*.googlecommerce.com
DNS:*.googledownloads.cn
DNS:*.googleflights-cn.net
DNS:*.googleoptimize-cn.com
DNS:*.googlesandbox-cn.com
DNS:*.googlesyndication-cn.com
DNS:*.googletagmanager-cn.com
DNS:*.googletagservices-cn.com
DNS:*.googletraveladservices-cn.com
DNS:*.googlevads-cn.com
DNS:*.googlevideo.com
DNS:*.gstatic-cn.com
DNS:*.gstatic.cn
DNS:*.gstatic.com
DNS:*.gvt1-cn.com
DNS:*.gvt1.com
DNS:*.gvt2-cn.com
DNS:*.gvt2.com
DNS:*.metric.gstatic.com
DNS:*.origin-test.bdn.dev
DNS:*.recaptcha-cn.net
DNS:*.recaptcha.net.cn
DNS:*.safeframe.googlesyndication-cn.com
DNS:*.urchin.com
DNS:*.url.google.com
DNS:*.widevine.cn
DNS:*.youtube-nocookie.com
DNS:*.youtube.com
DNS:*.youtubeeducation.com
DNS:*.youtubekids.com
DNS:*.yt.be
DNS:*.ytimg.com
DNS:2mdn-cn.net
DNS:admob-cn.com
DNS:ampproject.net.cn
DNS:ampproject.org.cn
DNS:android.clients.google.com
DNS:android.com
DNS:app-measurement-cn.com
DNS:dartsearch-cn.net
DNS:developer.android.google.cn
DNS:developers.android.google.cn
DNS:doubleclick-cn.net
DNS:doubleclick.cn
DNS:g.cn
DNS:g.co
DNS:ggpht.cn
DNS:gkecnapps.cn
DNS:goo.gl
DNS:google-analytics-cn.com
DNS:google-analytics.com
DNS:google.com
DNS:googleadservices-cn.com
DNS:googleapis-cn.com
DNS:googleapps-cn.com
DNS:googlecnapps.cn
DNS:googlecommerce.com
DNS:googledownloads.cn
DNS:googleflights-cn.net
DNS:googleoptimize-cn.com
DNS:googlesandbox-cn.com
DNS:googlesyndication-cn.com
DNS:googletagmanager-cn.com
DNS:googletagservices-cn.com
DNS:googletraveladservices-cn.com
DNS:googlevads-cn.com
DNS:gvt1-cn.com
DNS:gvt2-cn.com
DNS:recaptcha-cn.net
DNS:recaptcha.net.cn
DNS:source.android.google.cn
DNS:urchin.com
DNS:widevine.cn
DNS:www.goo.gl
DNS:youtu.be
DNS:youtube.com
DNS:youtubeeducation.com
DNS:youtubekids.com
DNS:yt.be
DNS:*.google.com
Technical

DNS Lookup

A Records

Host IP Address Class TTL
youtube.de. 172.253.115.93 IN 300
youtube.de. 172.253.115.190 IN 300
youtube.de. 172.253.115.136 IN 300
youtube.de. 172.253.115.91 IN 300

NS Records

Host Nameserver Class TTL
youtube.de. ns1.google.com. IN 21600
youtube.de. ns4.google.com. IN 21600
youtube.de. ns2.google.com. IN 21600
youtube.de. ns3.google.com. IN 21600

AAAA Records

IP Address Class TTL
2607:f8b0:4004:c06::88 IN 300
2607:f8b0:4004:c06::5d IN 300
2607:f8b0:4004:c06::be IN 300
2607:f8b0:4004:c06::5b IN 300

CAA Records

Domain Flags Tag Class TTL
pki.goog 0 issue IN 21600

MX Records

Priority Host Server Class TTL
0 youtube.de. smtp.google.com. IN 300

SOA Records

Domain Name Primary NS Responsible Email TTL
youtube.de. ns1.google.com. dns-admin.google.com. 60

TXT Records

Host Value Class TTL
youtube.de. v=spf1 IN 300

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Expires: 1st January, 1990
Date: 25th January, 2023
Server: ESF
X-Content-Type-Options: nosniff
Pragma: no-cache
Content-Length: 807140
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security: max-age=31536000
Report-To: {"group":"youtube_main","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/youtube_main"}]}
Permissions-Policy: ch-ua-arch=*, ch-ua-bitness=*, ch-ua-full-version=*, ch-ua-full-version-list=*, ch-ua-model=*, ch-ua-wow64=*, ch-ua-platform=*, ch-ua-platform-version=*
Accept-CH: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Vary: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Cross-Origin-Opener-Policy-Report-Only: same-origin-allow-popups; report-to="youtube_main"
P3P: CP="This is not a P3P policy! See http://support.google.com/accounts/answer/151657?hl=en for more info."
X-XSS-Protection: 0
Set-Cookie: *
Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

Whois Lookup

Created:
Changed:
Expires:
Status:
Nameservers: ns1.google.com
ns2.google.com
ns3.google.com
ns4.google.com
Full Whois: % Restricted rights.
%
% Terms and Conditions of Use
%
% The above data may only be used within the scope of technical or
% administrative necessities of Internet operation or to remedy legal
% problems.
% The use for other purposes, in particular for advertising, is not permitted.
%
% The DENIC whois service on port 43 doesn't disclose any information concerning
% the domain holder, general request and abuse contact.
% This information can be obtained through use of our web-based whois service
% available at the DENIC website:
% http://www.denic.de/en/domains/whois-service/web-whois.html
%
%

Domain: youtube.de
Nserver: ns1.google.com
Nserver: ns2.google.com
Nserver: ns3.google.com
Nserver: ns4.google.com
Status: connect
Changed: 2018-03-12T21:43:50+01:00

Nameservers

Name IP Address
ns1.google.com 216.239.32.10
ns2.google.com 216.239.34.10
ns3.google.com 216.239.36.10
ns4.google.com 216.239.38.10
Related

Subdomains

Domain Subdomain
ww

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Domain Valuation Snoop Score
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Organic Search (US) Competitors

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Domain Valuation Snoop Score
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0/5

Sites hosted on the same IP address

Domain Valuation Snoop Score
$3,534,736 USD 4/5