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https://xvideos.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
79
GRADE
C
FIX
4
REVIEW
4
PASS
5
INFO
2

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

Mobile Desktop
93
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
83
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

1.20 s

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

1.37 s

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

2 ms

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

0.000

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

1.20 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.

1.98 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
15
5 PASS 4 REVIEW 4 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 (1.7 MiB of 1.7 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
Page Weight Inventory
Action
50 resources · 1.7 MB · 537 KB savings available
FIX
50 resources · 1.7 MB · 537 KB savings available
Warning::
Page weight 741 KB over 1MB target
Got: 1.7 MB Expected: ≤ 1 MB
Info::
~537 KB of savings available
Warning::
49 third-party resources (100% of weight)
Info::
2 resources over 200KB
50 resources · 1.7 MiB · 49 third-party 741.3 KiB over 1MB target
JavaScript 42% · 744.0 KiB
Image 40% · 700.2 KiB
CSS 12% · 217.8 KiB
Other 2% · 40.3 KiB
Document 2% · 32.7 KiB
Font 2% · 30.3 KiB

~536.9 KiB of savings available

Remove unused JavaScript: 536.9 KiB
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.

C
Page Weight Budget
Action
1.7 MB transferred, 50 requests
REVIEW
1.7 MB transferred, 50 requests
Info::
Page weighs 5.6 MB (1.7 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::
50 HTTP requests
Info::
Estimated 0.36 g CO2 per page load
1.7 MB / 2.4 MB budget
1.7 MB transferred
50 requests
0.36 g CO2 per page load
JavaScript 744.0 KiB 42%
Images 692.5 KiB 39%
CSS 217.8 KiB 12%
Other 39.9 KiB 2%
HTML 32.2 KiB 2%
Fonts 30.3 KiB 2%
Other 8.2 KiB 0%
Other 424 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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
34 images, 0 KB saveable
REVIEW
34 images, 0 KB saveable
Warning::
https://thumb-cdn77.xvideos-cdn.com/c93cc7e2-0c34-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/6c050dd9-45d3-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumbs-gcore.xvideos-cdn.com/c8a31b90-e278... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/554beb45-3a80-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/74c37a6f-90e0-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/24599935-24a9-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/8505a127-1090-... 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.
Warning::
https://thumb-cdn77.xvideos-cdn.com/32531b40-5322-... 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://thumb-cdn77.xvideos-cdn.com/c0aa29ad-6ff8-... 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://thumbs-gcore.xvideos-cdn.com/ae1202c1-4e21... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/ff3c610a-75bf-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/bca12816-1e28-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/bee68d99-a154-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/bde63e76-e2d9-... 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://thumbs-gcore.xvideos-cdn.com/a0286423-e7a0... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/51a72015-5ec1-... 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/a0c54abb-4d40-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/abbb5496-7c8e-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/9d8e9513-d294-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/33611cd8-4dfe-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/e6dd6d82-2519-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/2ede0bf1-ea45-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
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/31cfeab6-f7c1-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thumb-cdn77.xvideos-cdn.com/65d9d68a-71b9-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
34 images 692 KB
0 oversized -0 KB
33 legacy format
30 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

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

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

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

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

B
JS Execution Cost
525ms total JS execution
REVIEW
525ms total JS execution
Info::
https://assets-cdn77.xvideos-cdn.com/v-5ffb1f64c77...: 184ms CPU time
Info::
https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1...: 137ms CPU time
Info::
https://www.xvideos.com/: 131ms CPU time
Info::
Unattributable: 73ms CPU time
Warning::
Third-party scripts: 525ms (100% of total)

Main Thread Breakdown

Script Evaluation 36% Style & Layout 20% Other 18% Script Parsing & Compilation 12% Parse HTML & CSS 9% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://assets-cdn77.xvideos-cdn.com/v-5ffb1f64c77/v3/js/skins/min/default.header.static.js184ms64ms9ms3rd
https://assets-cdn77.xvideos-cdn.com/v-160da3d16b1/v3/js/skins/min/default.js137ms69ms44ms3rd
https://www.xvideos.com/131ms45ms11ms3rd
Unattributable73ms1ms0ms3rd
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 500 ms 1.0 s FCP 1.2 s LCP 1.4 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 — 21 ms — font-display: swap
iconfont.woff2 woff2 swap
Size 30 KB
Load time 21 ms
Start 466 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
Network Waterfall
50 requests over 982ms
INFO
0 ms 500 ms 1.0 s FCP 1.2 s LCP 1.4 shttps://xvideos.com// https://xvideos.com/ — 301 — 474 B — 95 ms — h2https://www.xvideos.com/www.xvideos.com/ https://www.xvideos.com/ — 200 — 32.2 KiB — 118 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 — 147 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 — 112 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 — 465 B — 128 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 — 113 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 — 18 ms — h2https://www.xvideos.com/manifest.jsonwww.xvideos.com/manifest.json https://www.xvideos.com/manifest.json — 200 — 424 B — 97 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 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https://www.xvideos.com/android-chrome-192x192.png — 200 — 6.7 KiB — 34 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 — 518 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 — 20 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 525ms · 627KB · £5/mo
assets-cdn77.xvideos-cdn.com
Other
Optional
Execution 184ms
Transfer 85 KB
Unused 44%
Monthly Cost £2/mo
assets-cdn77.xvideos-cdn.com
Other
Optional
Execution 137ms
Transfer 509 KB
Unused 82%
Monthly Cost £1/mo
www.xvideos.com
Other
Optional
Execution 131ms
Transfer 32 KB
Monthly Cost £1/mo
Unattributable
Other
Optional
Execution 73ms
Transfer 0 KB
Monthly Cost £1/mo

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

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

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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