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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
83
GRADE
B
FIX
2
REVIEW
3
PASS
8
INFO
2

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

72
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
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.
100
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.

2.17 s

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

2.95 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.

2.17 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.

2.95 s

Page Load Progression

529 ms
1.1 s
1.6 s
2.1 s
2.6 s
3.2 s
3.7 s
4.2 s
Checks
15
8 PASS 3 REVIEW 2 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 (827.1 KiB of 827.2 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Bundles
Action
27 scripts, 334 KB unused
FIX
27 scripts, 334 KB unused
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 242 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-L27D...: 62 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://serv90.com/ab47fe78.js: 30 KB unused (80%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 334 KB
334 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB242 KB (67%)3rd
https://www.googletagmanager.com/gtag/js?id=G-L27DQL6RCD158 KB62 KB (40%)3rd
https://serv90.com/ab47fe78.js37 KB30 KB (80%)3rd
https://static.4shared.com/js/plugins/jquery.timeago.4min.js?ver=10070358061 KB3rd
https://static.4shared.com/js/headerNew.4min.js?ver=19354120845 KB3rd
https://static.4shared.com/js/utils.4min.js?ver=12027406349 KB3rd
https://static.4shared.com/js/plugins/bootstrap/js/bootstrap.min.js?ver=-201641365410 KB3rd
https://static.4shared.com/js/plugins/favicon.4min.js?ver=5897912031 KB3rd
https://static.4shared.com/js/headerSearch.4min.js?ver=-4484678073 KB3rd
https://static.4shared.com/js/plugins/jquery.localStorage.4min.js?ver=-15350721971 KB3rd

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

B
Image Optimization
32 images, 0 KB saveable
REVIEW
32 images, 0 KB saveable
Info::
All images are well-optimized
32 images 35 KB
0 oversized -0 KB
32 legacy format
0 missing dimensions CLS risk
B
Page Weight Inventory
73 resources · 827 KB · 334 KB savings available
REVIEW
73 resources · 827 KB · 334 KB savings available
Info::
Within 1MB page-weight target
Got: 827 KB
Info::
~334 KB of savings available
Warning::
72 third-party resources (100% of weight)
Info::
1 resources over 200KB
73 resources · 827.2 KiB · 72 third-party Within 1MB page-weight target
JavaScript 82% · 679.5 KiB
Document 5% · 44.8 KiB
Font 4% · 36.7 KiB
Image 4% · 36.6 KiB
CSS 3% · 28.5 KiB
Other 0% · 1.1 KiB

~334.5 KiB of savings available

Remove unused JavaScript: 334.5 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A
Page Weight Budget
827 KB transferred, 73 requests
PASS
827 KB transferred, 73 requests
Info::
Page weighs 1.9 MB (827 KB transferred)
Warning::
JavaScript is 680 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 680 KB
Info::
73 HTTP requests
Info::
Estimated 0.17 g CO2 per page load
827 KB / 2.4 MB budget
827 KB transferred
73 requests
0.17 g CO2 per page load
JavaScript 679.5 KiB 82%
HTML 44.7 KiB 5%
Fonts 36.7 KiB 4%
Images 35.2 KiB 4%
CSS 28.5 KiB 3%
Other 1.5 KiB 0%
Other 549 B 0%
Other 549 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

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+
JS Execution Cost
328ms total JS execution
PASS
328ms total JS execution
Info::
Unattributable: 119ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-L27D...: 79ms CPU time
Info::
https://www.4shared.com/: 75ms CPU time
Info::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 54ms CPU time
Warning::
Third-party scripts: 328ms (100% of total)

Main Thread Breakdown

Script Evaluation 36% Other 32% Script Parsing & Compilation 15% Style & Layout 11% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
Unattributable119ms2ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-L27DQL6RCD79ms64ms11ms3rd
https://www.4shared.com/75ms7ms3ms3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js54ms32ms21ms3rd
A+
Font Loading
1 fonts (37 KB)
PASS
1 fonts (37 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

37 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 FCP 2.2 s LCP 2.9 shttps://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 36.7 KiB — 35 ms — font-display: swap
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 37 KB
Load time 35 ms
Start 1.1 s
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
HTTP Caching
max-age=31536000 (52 weeks)
PASS
max-age=31536000 (52 weeks)
Info::
Cache-Control header is set
Got: max-age=31536000, public
Info::
Effective TTL: 52 weeks (max-age=31536000)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=31536000, public

DirectiveValueMeaning
max-age31536000Cache for 52 weeks
publicAny cache may store this response
Effective TTL: 31536000 seconds
Network Waterfall
73 requests over 2374ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 2.2 s LCP 2.9 shttps://4shared.com// https://4shared.com/ — 301 — 107 B — 393 ms — h2https://www.4shared.com/www.4shared.com/ https://www.4shared.com/ — 200 — 44.7 KiB — 828 ms — http/1.1https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swapfonts.googleapis.com/css2?family=Ro... https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap — 200 — 2.1 KiB — 80 ms — h2https://static.4shared.com/css/indexNew.4min.css?ver=822487028static.4shared.com/css/indexNew.4mi... https://static.4shared.com/css/indexNew.4min.css?ver=822487028 — 200 — 2.5 KiB — 137 ms — h2https://static.4shared.com/css/gridAndLibrary.4min.css?ver=904387394static.4shared.com/css/gridAndLibra... https://static.4shared.com/css/gridAndLibrary.4min.css?ver=904387394 — 200 — 6.0 KiB — 137 ms — h2https://static.4shared.com/css/headerAndFooterResponsive.4min.css?ver=768287826static.4shared.com/css/headerAndFoo... https://static.4shared.com/css/headerAndFooterResponsive.4min.css?ver=768287826 — 200 — 7.6 KiB — 265 ms — h2https://static.4shared.com/css/headerNew.4min.css?ver=1999692565static.4shared.com/css/headerNew.4m... https://static.4shared.com/css/headerNew.4min.css?ver=1999692565 — 200 — 5.2 KiB — 266 ms — h2https://static.4shared.com/css/tipTip.4min.css?ver=-1558254190static.4shared.com/css/tipTip.4min.... https://static.4shared.com/css/tipTip.4min.css?ver=-1558254190 — 200 — 532 B — 268 ms — h2https://static.4shared.com/js/jquery/jquery-1.9.1.4min.js?ver=1965676176static.4shared.com/js/jquery/jquery... https://static.4shared.com/js/jquery/jquery-1.9.1.4min.js?ver=1965676176 — 200 — 35.9 KiB — 401 ms — h2https://static.4shared.com/js/jquery/jquery-migrate-1.2.1.4min.js?ver=-1518983214static.4shared.com/js/jquery/jquery... https://static.4shared.com/js/jquery/jquery-migrate-1.2.1.4min.js?ver=-1518983214 — 200 — 3.3 KiB — 401 ms — h2https://static.4shared.com/js/headerNew.4min.js?ver=1935412084static.4shared.com/js/headerNew.4mi... https://static.4shared.com/js/headerNew.4min.js?ver=1935412084 — 200 — 4.6 KiB — 396 ms — h2https://static.4shared.com/js/headerSearch.4min.js?ver=-448467807static.4shared.com/js/headerSearch.... https://static.4shared.com/js/headerSearch.4min.js?ver=-448467807 — 200 — 2.8 KiB — 268 ms — h2https://static.4shared.com/js/Events.4min.js?ver=-1265666699static.4shared.com/js/Events.4min.j... https://static.4shared.com/js/Events.4min.js?ver=-1265666699 — 200 — 455 B — 269 ms — h2https://static.4shared.com/js/utils.4min.js?ver=1202740634static.4shared.com/js/utils.4min.js... https://static.4shared.com/js/utils.4min.js?ver=1202740634 — 200 — 9.0 KiB — 270 ms — h2https://static.4shared.com/js/plugins/bootstrap/js/bootstrap.min.js?ver=-2016413654static.4shared.com/js/plugins/boots... https://static.4shared.com/js/plugins/bootstrap/js/bootstrap.min.js?ver=-2016413654 — 200 — 9.7 KiB — 391 ms — h2https://static.4shared.com/js/plugins/favicon.4min.js?ver=589791203static.4shared.com/js/plugins/favic... https://static.4shared.com/js/plugins/favicon.4min.js?ver=589791203 — 200 — 853 B — 391 ms — h2https://serv90.com/ab47fe78.jsserv90.com/ab47fe78.js https://serv90.com/ab47fe78.js — 200 — 37.3 KiB — 385 ms — http/1.1https://static.4shared.com/js/plugins/jquery.localStorage.4min.js?ver=-1535072197static.4shared.com/js/plugins/jquer... https://static.4shared.com/js/plugins/jquery.localStorage.4min.js?ver=-1535072197 — 200 — 1.1 KiB — 288 ms — h2https://static.4shared.com/js/plugins/jquery.tipTip.4min.js?ver=424755820static.4shared.com/js/plugins/jquer... https://static.4shared.com/js/plugins/jquery.tipTip.4min.js?ver=424755820 — 200 — 1.3 KiB — 290 ms — h2https://static.4shared.com/js/plugins/jquery.cookie.4min.js?ver=823523918static.4shared.com/js/plugins/jquer... https://static.4shared.com/js/plugins/jquery.cookie.4min.js?ver=823523918 — 200 — 561 B — 404 ms — h2https://static.4shared.com/js/plugins/jquery.timeago.4min.js?ver=1007035806static.4shared.com/js/plugins/jquer... https://static.4shared.com/js/plugins/jquery.timeago.4min.js?ver=1007035806 — 200 — 1.1 KiB — 405 ms — h2https://static.4shared.com/js/plugins/timeago_i18n/jquery.timeago.fr.4min.js?ver=170686365static.4shared.com/js/plugins/timea... https://static.4shared.com/js/plugins/timeago_i18n/jquery.timeago.fr.4min.js?ver=170686365 — 200 — 331 B — 406 ms — h2https://www.googletagmanager.com/gtag/js?id=G-L27DQL6RCDwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-L27DQL6RCD — 200 — 157.6 KiB — 165 ms — h2https://static.4shared.com/css/bottomSheets.4min.css?ver=-477151684static.4shared.com/css/bottomSheets... https://static.4shared.com/css/bottomSheets.4min.css?ver=-477151684 — 200 — 3.6 KiB — 278 ms — h2https://static.4shared.com/js/bottomSheets/bottomsheets.4min.js?ver=314671084static.4shared.com/js/bottomSheets/... https://static.4shared.com/js/bottomSheets/bottomsheets.4min.js?ver=314671084 — 200 — 368 B — 401 ms — h2https://static.4shared.com/js/bottomSheets/BS_signIn.4min.js?ver=-1384269618static.4shared.com/js/bottomSheets/... https://static.4shared.com/js/bottomSheets/BS_signIn.4min.js?ver=-1384269618 — 200 — 4.4 KiB — 402 ms — h2https://www.google.com/recaptcha/api.js?render=explicitwww.google.com/recaptcha/api.js?ren... https://www.google.com/recaptcha/api.js?render=explicit — 200 — 1013 B — 71 ms — h3https://static.4shared.com/css/popup_n.4min.css?ver=-1713622631static.4shared.com/css/popup_n.4min... https://static.4shared.com/css/popup_n.4min.css?ver=-1713622631 — 200 — 1.1 KiB — 278 ms — h2https://static.4shared.com/js/PopupModule.4min.js?ver=-1677196418static.4shared.com/js/PopupModule.4... https://static.4shared.com/js/PopupModule.4min.js?ver=-1677196418 — 200 — 1.3 KiB — 403 ms — h2https://static.4shared.com/js/plupload/plupload.4min.js?ver=553630544static.4shared.com/js/plupload/plup... https://static.4shared.com/js/plupload/plupload.4min.js?ver=553630544 — 200 — 4.4 KiB — 404 ms — h2
0 ms 1.0 s 2.0 s 3.0 s FCP 2.2 s LCP 2.9 shttps://4shared.com// https://4shared.com/ — 301 — 107 B — 393 ms — h2https://www.4shared.com/www.4shared.com/ https://www.4shared.com/ — 200 — 44.7 KiB — 828 ms — http/1.1https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swapfonts.googleapis.com/css2?family=Ro... https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap — 200 — 2.1 KiB — 80 ms — h2https://static.4shared.com/css/indexNew.4min.css?ver=822487028static.4shared.com/css/indexNew.4mi... https://static.4shared.com/css/indexNew.4min.css?ver=822487028 — 200 — 2.5 KiB — 137 ms — h2https://static.4shared.com/css/gridAndLibrary.4min.css?ver=904387394static.4shared.com/css/gridAndLibra... https://static.4shared.com/css/gridAndLibrary.4min.css?ver=904387394 — 200 — 6.0 KiB — 137 ms — h2https://static.4shared.com/css/headerAndFooterResponsive.4min.css?ver=768287826static.4shared.com/css/headerAndFoo... https://static.4shared.com/css/headerAndFooterResponsive.4min.css?ver=768287826 — 200 — 7.6 KiB — 265 ms — h2https://static.4shared.com/css/headerNew.4min.css?ver=1999692565static.4shared.com/css/headerNew.4m... https://static.4shared.com/css/headerNew.4min.css?ver=1999692565 — 200 — 5.2 KiB — 266 ms — h2https://static.4shared.com/css/tipTip.4min.css?ver=-1558254190static.4shared.com/css/tipTip.4min.... https://static.4shared.com/css/tipTip.4min.css?ver=-1558254190 — 200 — 532 B — 268 ms — h2https://static.4shared.com/js/jquery/jquery-1.9.1.4min.js?ver=1965676176static.4shared.com/js/jquery/jquery... https://static.4shared.com/js/jquery/jquery-1.9.1.4min.js?ver=1965676176 — 200 — 35.9 KiB — 401 ms — h2https://static.4shared.com/js/jquery/jquery-migrate-1.2.1.4min.js?ver=-1518983214static.4shared.com/js/jquery/jquery... https://static.4shared.com/js/jquery/jquery-migrate-1.2.1.4min.js?ver=-1518983214 — 200 — 3.3 KiB — 401 ms — h2https://static.4shared.com/js/headerNew.4min.js?ver=1935412084static.4shared.com/js/headerNew.4mi... https://static.4shared.com/js/headerNew.4min.js?ver=1935412084 — 200 — 4.6 KiB — 396 ms — h2https://static.4shared.com/js/headerSearch.4min.js?ver=-448467807static.4shared.com/js/headerSearch.... https://static.4shared.com/js/headerSearch.4min.js?ver=-448467807 — 200 — 2.8 KiB — 268 ms — h2https://static.4shared.com/js/Events.4min.js?ver=-1265666699static.4shared.com/js/Events.4min.j... https://static.4shared.com/js/Events.4min.js?ver=-1265666699 — 200 — 455 B — 269 ms — h2https://static.4shared.com/js/utils.4min.js?ver=1202740634static.4shared.com/js/utils.4min.js... https://static.4shared.com/js/utils.4min.js?ver=1202740634 — 200 — 9.0 KiB — 270 ms — h2https://static.4shared.com/js/plugins/bootstrap/js/bootstrap.min.js?ver=-2016413654static.4shared.com/js/plugins/boots... https://static.4shared.com/js/plugins/bootstrap/js/bootstrap.min.js?ver=-2016413654 — 200 — 9.7 KiB — 391 ms — h2https://static.4shared.com/js/plugins/favicon.4min.js?ver=589791203static.4shared.com/js/plugins/favic... https://static.4shared.com/js/plugins/favicon.4min.js?ver=589791203 — 200 — 853 B — 391 ms — h2https://serv90.com/ab47fe78.jsserv90.com/ab47fe78.js https://serv90.com/ab47fe78.js — 200 — 37.3 KiB — 385 ms — http/1.1https://static.4shared.com/js/plugins/jquery.localStorage.4min.js?ver=-1535072197static.4shared.com/js/plugins/jquer... https://static.4shared.com/js/plugins/jquery.localStorage.4min.js?ver=-1535072197 — 200 — 1.1 KiB — 288 ms — h2https://static.4shared.com/js/plugins/jquery.tipTip.4min.js?ver=424755820static.4shared.com/js/plugins/jquer... https://static.4shared.com/js/plugins/jquery.tipTip.4min.js?ver=424755820 — 200 — 1.3 KiB — 290 ms — h2https://static.4shared.com/js/plugins/jquery.cookie.4min.js?ver=823523918static.4shared.com/js/plugins/jquer... https://static.4shared.com/js/plugins/jquery.cookie.4min.js?ver=823523918 — 200 — 561 B — 404 ms — h2https://static.4shared.com/js/plugins/jquery.timeago.4min.js?ver=1007035806static.4shared.com/js/plugins/jquer... https://static.4shared.com/js/plugins/jquery.timeago.4min.js?ver=1007035806 — 200 — 1.1 KiB — 405 ms — h2https://static.4shared.com/js/plugins/timeago_i18n/jquery.timeago.fr.4min.js?ver=170686365static.4shared.com/js/plugins/timea... https://static.4shared.com/js/plugins/timeago_i18n/jquery.timeago.fr.4min.js?ver=170686365 — 200 — 331 B — 406 ms — h2https://www.googletagmanager.com/gtag/js?id=G-L27DQL6RCDwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-L27DQL6RCD — 200 — 157.6 KiB — 165 ms — h2https://static.4shared.com/css/bottomSheets.4min.css?ver=-477151684static.4shared.com/css/bottomSheets... https://static.4shared.com/css/bottomSheets.4min.css?ver=-477151684 — 200 — 3.6 KiB — 278 ms — h2https://static.4shared.com/js/bottomSheets/bottomsheets.4min.js?ver=314671084static.4shared.com/js/bottomSheets/... https://static.4shared.com/js/bottomSheets/bottomsheets.4min.js?ver=314671084 — 200 — 368 B — 401 ms — h2https://static.4shared.com/js/bottomSheets/BS_signIn.4min.js?ver=-1384269618static.4shared.com/js/bottomSheets/... https://static.4shared.com/js/bottomSheets/BS_signIn.4min.js?ver=-1384269618 — 200 — 4.4 KiB — 402 ms — h2https://www.google.com/recaptcha/api.js?render=explicitwww.google.com/recaptcha/api.js?ren... https://www.google.com/recaptcha/api.js?render=explicit — 200 — 1013 B — 71 ms — h3https://static.4shared.com/css/popup_n.4min.css?ver=-1713622631static.4shared.com/css/popup_n.4min... https://static.4shared.com/css/popup_n.4min.css?ver=-1713622631 — 200 — 1.1 KiB — 278 ms — h2https://static.4shared.com/js/PopupModule.4min.js?ver=-1677196418static.4shared.com/js/PopupModule.4... https://static.4shared.com/js/PopupModule.4min.js?ver=-1677196418 — 200 — 1.3 KiB — 403 ms — h2https://static.4shared.com/js/plupload/plupload.4min.js?ver=553630544static.4shared.com/js/plupload/plup... https://static.4shared.com/js/plupload/plupload.4min.js?ver=553630544 — 200 — 4.4 KiB — 404 ms — h2https://static.4shared.com/js/plupload/plupload.flash.4min.js?ver=-59961410static.4shared.com/js/plupload/plup... https://static.4shared.com/js/plupload/plupload.flash.4min.js?ver=-59961410 — 200 — 2.0 KiB — 405 ms — h2https://static.4shared.com/js/UploadModule.4min.js?ver=411217227static.4shared.com/js/UploadModule.... https://static.4shared.com/js/UploadModule.4min.js?ver=411217227 — 200 — 11.2 KiB — 407 ms — h2https://static.4shared.com/js/Jsonp.4min.js?ver=-608301817static.4shared.com/js/Jsonp.4min.js... https://static.4shared.com/js/Jsonp.4min.js?ver=-608301817 — 200 — 589 B — 407 ms — h2https://static.4shared.com/images/bg-clouds-white.svgstatic.4shared.com/images/bg-clouds... https://static.4shared.com/images/bg-clouds-white.svg — 200 — 4.3 KiB — 393 ms — 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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 328ms · 565KB · $4/mo
Unattributable
Other
Optional
Execution 119ms
Transfer 0 KB
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 79ms
Transfer 158 KB
Unused 40%
Monthly Cost $1/mo
www.4shared.com
Other
Optional
Execution 75ms
Transfer 45 KB
Monthly Cost $1/mo
www.gstatic.com
Other
Optional
Execution 54ms
Transfer 362 KB
Unused 67%
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

67% of www.gstatic.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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