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https://xvideos.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
79
GRADE
C
FIX
3
REVIEW
5
PASS
7
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
64
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
68
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
83
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

4.08 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

8.17 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

130 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.008

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

4.08 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

8.52 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
7 PASS 5 REVIEW 3 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (1.2 MiB of 1.2 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
7 scripts, 537 KB unused
FIX
7 scripts, 537 KB unused
Warning::
https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1...: 414 KB unused (82%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1...: 85 KB unused (88%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://assets-cdn77.xvideos-cdn.com/v-5ffb1f64c77...: 37 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 537 KB
537 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/skins/min/default.js509 KB414 KB (82%)✓3rd
https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/libs/hls-1.2.5.min.js98 KB85 KB (88%)✓3rd
https://assets-cdn77.xvideos-cdn.com/v-5ffb1f64c77/v3/js/skins/min/default.header.static.js85 KB37 KB (44%)✓3rd
https://assets-cdn77.xvideos-cdn.com/v-188cada4dcd/v3/js/skins/min/default.footer.static.js11 KB—✓3rd
https://assets-cdn77.xvideos-cdn.com/v3/js/libs/jquery.min.js34 KB—✓3rd
https://assets-cdn77.xvideos-cdn.com/v3/js/skins/min/require.static.js7 KB—✓3rd
https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/jquery.js1 KB—✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Page Weight Budget
1.2 MB transferred, 26 requests
REVIEW
1.2 MB transferred, 26 requests
Info::
Page weighs 5.0 MB (1.2 MB transferred)
Warning::
JavaScript is 744 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 744 KB
Info::
CSS is 218 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 218 KB
Info::
26 HTTP requests
Info::
Estimated 0.24 g CO2 per page load
1.2 MB / 2.4 MB budget
1.2 MB transferred
26 requests
0.24 g CO2 per page load
JavaScript 744.0 KiB 63%
CSS 217.8 KiB 18%
Images 113.3 KiB 10%
Other 39.9 KiB 3%
HTML 32.3 KiB 3%
Fonts 30.3 KiB 3%
Other 8.2 KiB 1%
Other 424 B 0%
0 2.4 MB 4.9 MB
Under budget

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

C
Image Optimization
Action
10 images, 0 KB saveable
REVIEW
10 images, 0 KB saveable
Warning::
https://thumbs-gcore.xvideos-cdn.com/36b9a38e-375b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/f9f4beea-94f1-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets-cdn77.xvideos-cdn.com/img/lightbox/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets-cdn77.xvideos-cdn.com/v3/img/skins/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/a9c921b0-bbc9-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/8f437dce-8607-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
10 images 113 KB
0 oversized -0 KB
9 legacy format
6 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

C
JS Execution Cost
Action
1879ms total JS execution
REVIEW
1879ms total JS execution
Warning::
https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1...: 617ms CPU time
Warning::
https://assets-cdn77.xvideos-cdn.com/v-5ffb1f64c77...: 531ms CPU time
Warning::
https://www.xvideos.com/: 273ms CPU time
Warning::
Unattributable: 250ms CPU time
Info::
https://assets-cdn77.xvideos-cdn.com/v3/js/skins/m...: 109ms CPU time
Warning::
Third-party scripts: 1879ms (100% of total)

Main Thread Breakdown

Script Evaluation 37% Other 18% Style & Layout 17% Script Parsing & Compilation 15% Parse HTML & CSS 8%
ScriptTotalScriptingParse/CompileParty
https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/skins/min/default.js617ms300ms206ms3rd
https://assets-cdn77.xvideos-cdn.com/v-5ffb1f64c77/v3/js/skins/min/default.header.static.js531ms211ms28ms3rd
https://www.xvideos.com/273ms81ms28ms3rd
Unattributable250ms5ms0ms3rd
https://assets-cdn77.xvideos-cdn.com/v3/js/skins/min/require.static.js109ms105ms2ms3rd
https://assets-cdn77.xvideos-cdn.com/v-ed95cb3da44/v3/css/default/main.css99ms0ms0ms3rd
C
Page Weight Inventory
Action
26 resources · 1.2 MB · 537 KB savings available
REVIEW
26 resources · 1.2 MB · 537 KB savings available
Warning::
Page weight 162 KB over 1MB target
Got: 1.2 MB Expected: ≤ 1 MB
Info::
~537 KB of savings available
Warning::
25 third-party resources (100% of weight)
Info::
2 resources over 200KB
26 resources · 1.2 MiB · 25 third-party 162.2 KiB over 1MB target
JavaScript 63% · 744.0 KiB
CSS 18% · 217.8 KiB
Image 10% · 121.0 KiB
Other 3% · 40.3 KiB
Document 3% · 32.7 KiB
Font 3% · 30.3 KiB

~537.1 KiB of savings available

Remove unused JavaScript: 537.1 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
1 fonts (30 KB)
PASS
1 fonts (30 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

30 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 4.1 s LCP 8.2 shttps://assets-cdn77.xvideos-cdn.com/v-02511061135/v3/fonts/skins/common/iconfont/iconfont.woff2iconfont.woff2 https://assets-cdn77.xvideos-cdn.com/v-02511061135/v3/fonts/skins/common/iconfont/iconfont.woff2 — 30.3 KiB — 19 ms — font-display: swap
iconfont.woff2 woff2 swap
Size 30 KB
Load time 19 ms
Start 489 ms
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
26 requests over 883ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 4.1 s LCP 8.2 shttps://xvideos.com// https://xvideos.com/ — 301 — 474 B — 103 ms — h2https://www.xvideos.com/www.xvideos.com/ https://www.xvideos.com/ — 200 — 32.3 KiB — 116 ms — h2https://assets-cdn77.xvideos-cdn.com/v-ed95cb3da44/v3/css/default/main.cssassets-cdn77.xvideos-cdn.com/v-ed95... https://assets-cdn77.xvideos-cdn.com/v-ed95cb3da44/v3/css/default/main.css — 200 — 217.8 KiB — 168 ms — h2https://assets-cdn77.xvideos-cdn.com/v-5ffb1f64c77/v3/js/skins/min/default.header.static.jsassets-cdn77.xvideos-cdn.com/v-5ffb... https://assets-cdn77.xvideos-cdn.com/v-5ffb1f64c77/v3/js/skins/min/default.header.static.js — 200 — 85.2 KiB — 146 ms — h2https://assets-cdn77.xvideos-cdn.com/img/lightbox/lightbox-blank.gifassets-cdn77.xvideos-cdn.com/img/li... https://assets-cdn77.xvideos-cdn.com/img/lightbox/lightbox-blank.gif — 200 — 466 B — 166 ms — h2https://assets-cdn77.xvideos-cdn.com/v-188cada4dcd/v3/js/skins/min/default.footer.static.jsassets-cdn77.xvideos-cdn.com/v-188c... https://assets-cdn77.xvideos-cdn.com/v-188cada4dcd/v3/js/skins/min/default.footer.static.js — 200 — 10.6 KiB — 147 ms — h2https://assets-cdn77.xvideos-cdn.com/v3/js/libs/jquery.min.jsassets-cdn77.xvideos-cdn.com/v3/js/... https://assets-cdn77.xvideos-cdn.com/v3/js/libs/jquery.min.js — 200 — 33.6 KiB — 20 ms — h2https://assets-cdn77.xvideos-cdn.com/v3/js/skins/min/require.static.jsassets-cdn77.xvideos-cdn.com/v3/js/... https://assets-cdn77.xvideos-cdn.com/v3/js/skins/min/require.static.js — 200 — 6.9 KiB — 19 ms — h2https://www.xvideos.com/manifest.jsonwww.xvideos.com/manifest.json https://www.xvideos.com/manifest.json — 200 — 424 B — 94 ms — h2https://assets-cdn77.xvideos-cdn.com/v3/img/skins/default/logo/xvideos.black.svgassets-cdn77.xvideos-cdn.com/v3/img... https://assets-cdn77.xvideos-cdn.com/v3/img/skins/default/logo/xvideos.black.svg — 200 — 1.9 KiB — 18 ms — h2https://assets-cdn77.xvideos-cdn.com/v-a9074857eb2/v3/js/i18n/front/english.jsonassets-cdn77.xvideos-cdn.com/v-a907... https://assets-cdn77.xvideos-cdn.com/v-a9074857eb2/v3/js/i18n/front/english.json — 200 — 39.5 KiB — 20 ms — h2https://www.xvideos.com/metrics/disclaimer/show?_=628272975www.xvideos.com/metrics/disclaimer/... https://www.xvideos.com/metrics/disclaimer/show?_=628272975 — 200 — 469 B — 39 ms — h2https://assets-cdn77.xvideos-cdn.com/v3/img/skins/default/logo/xvideos.white.pngassets-cdn77.xvideos-cdn.com/v3/img... https://assets-cdn77.xvideos-cdn.com/v3/img/skins/default/logo/xvideos.white.png — 200 — 4.0 KiB — 18 ms — h2https://assets-cdn77.xvideos-cdn.com/v-02511061135/v3/fonts/skins/common/iconfont/iconfont.woff2assets-cdn77.xvideos-cdn.com/v-0251... https://assets-cdn77.xvideos-cdn.com/v-02511061135/v3/fonts/skins/common/iconfont/iconfont.woff2 — 200 — 30.3 KiB — 19 ms — h2https://assets-cdn77.xvideos-cdn.com/v-ed95cb3da44/v3/img/flags/flat/flags-16.pngassets-cdn77.xvideos-cdn.com/v-ed95... https://assets-cdn77.xvideos-cdn.com/v-ed95cb3da44/v3/img/flags/flat/flags-16.png — 200 — 36.5 KiB — 20 ms — h2https://thumb-cdn77.xvideos-cdn.com/a9c921b0-bbc9-49d4-ad16-c2fbe9346f90/0/xv_12_t.jpgthumb-cdn77.xvideos-cdn.com/a9c921b... https://thumb-cdn77.xvideos-cdn.com/a9c921b0-bbc9-49d4-ad16-c2fbe9346f90/0/xv_12_t.jpg — 200 — 25.0 KiB — 171 ms — h2https://thumbs-gcore.xvideos-cdn.com/36b9a38e-375b-434f-8d51-a816e0a3caef/3/xv_28_t.jpgthumbs-gcore.xvideos-cdn.com/36b9a3... https://thumbs-gcore.xvideos-cdn.com/36b9a38e-375b-434f-8d51-a816e0a3caef/3/xv_28_t.jpg — 200 — 14.4 KiB — 154 ms — h2https://thumb-cdn77.xvideos-cdn.com/f9f4beea-94f1-4e5d-a801-839ed4576c57/3/xv_17_t.jpgthumb-cdn77.xvideos-cdn.com/f9f4bee... https://thumb-cdn77.xvideos-cdn.com/f9f4beea-94f1-4e5d-a801-839ed4576c57/3/xv_17_t.jpg — 200 — 12.4 KiB — 173 ms — h2https://thumb-cdn77.xvideos-cdn.com/8f437dce-8607-437b-86d1-87e2f0f491a7/3/xv_10_t.jpgthumb-cdn77.xvideos-cdn.com/8f437dc... https://thumb-cdn77.xvideos-cdn.com/8f437dce-8607-437b-86d1-87e2f0f491a7/3/xv_10_t.jpg — 200 — 17.6 KiB — 184 ms — h2https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/skins/min/default.jsassets-cdn77.xvideos-cdn.com/v-160d... https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/skins/min/default.js — 200 — 509.3 KiB — 57 ms — h2https://assets-cdn77.xvideos-cdn.com/v3/img/skins/default/xv-inline-loader.gifassets-cdn77.xvideos-cdn.com/v3/img... https://assets-cdn77.xvideos-cdn.com/v3/img/skins/default/xv-inline-loader.gif — 200 — 1.1 KiB — 18 ms — h2https://assets-cdn77.xvideos-cdn.com/v3/img/skins/default/logo/xv.white.svgassets-cdn77.xvideos-cdn.com/v3/img... https://assets-cdn77.xvideos-cdn.com/v3/img/skins/default/logo/xv.white.svg — 200 — 989 B — 17 ms — h2https://www.xvideos.com/android-chrome-192x192.pngwww.xvideos.com/android-chrome-192x... https://www.xvideos.com/android-chrome-192x192.png — 200 — 6.7 KiB — 31 ms — h2https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/jquery.jsassets-cdn77.xvideos-cdn.com/v-160d... https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/jquery.js — 200 — 516 B — 18 ms — h2data:image/avif;base64,AAAAIGZ0eXBhdmlmAAAAAGF2aWZtaWYxbWlhZk1BMUIAAADybWV0YQAAAAAAAAAoaGRscgAAAAAA…data:image/avif;base64,AAAAIGZ0eXBh... data:image/avif;base64,AAAAIGZ0eXBhdmlmAAAAAGF2aWZtaWYxbWlhZk1BMUIAAADybWV0YQAAAAAAAAAoaGRscgAAAAAA… — 200 — 0 B — 0 ms — datahttps://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/libs/hls-1.2.5.min.jsassets-cdn77.xvideos-cdn.com/v-160d... https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/libs/hls-1.2.5.min.js — 200 — 97.8 KiB — 19 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 1879ms · 851KB · £19/mo
assets-cdn77.xvideos-cdn.com
Other
Costly
Execution 617ms
Transfer 509 KB
Unused 82%
Monthly Cost £6/mo
assets-cdn77.xvideos-cdn.com
Other
Costly
Execution 531ms
Transfer 85 KB
Unused 44%
Monthly Cost £6/mo
www.xvideos.com
Other
Costly
Execution 273ms
Transfer 32 KB
Monthly Cost £3/mo
Unattributable
Other
Costly
Execution 250ms
Transfer 0 KB
Monthly Cost £3/mo
assets-cdn77.xvideos-cdn.com
Other
Optional
Execution 109ms
Transfer 7 KB
Monthly Cost £1/mo
assets-cdn77.xvideos-cdn.com
Other
Optional
Execution 99ms
Transfer 218 KB
Monthly Cost £1/mo

These scripts may cost more than they're worth

  • assets-cdn77.xvideos-cdn.com adds 617ms and costs ~£6/month
  • assets-cdn77.xvideos-cdn.com adds 531ms and costs ~£6/month
  • www.xvideos.com adds 273ms and costs ~£3/month
  • Unattributable adds 250ms and costs ~£3/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

assets-cdn77.xvideos-cdn.com takes 617ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

82% of assets-cdn77.xvideos-cdn.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

assets-cdn77.xvideos-cdn.com takes 531ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

www.xvideos.com takes 273ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 250ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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