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https://urbandictionary.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
86
GRADE
B
FIX
1
REVIEW
4
PASS
8
INFO
2

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

Mobile Desktop
87
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
84
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
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.

1.16 s

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

2.11 s

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

48 ms

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

0.006

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

1.16 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.

2.12 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
8 PASS 4 REVIEW 1 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 (905.9 KiB of 906.1 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
B
Image Optimization
11 images, 0 KB saveable
REVIEW
11 images, 0 KB saveable
Info::
All images are well-optimized
11 images 110 KB
0 oversized -0 KB
4 legacy format
0 missing dimensions CLS risk
B
JS Bundles
9 scripts, 132 KB unused
REVIEW
9 scripts, 132 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-2JW7...: 59 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.urbandictionary.com/assets/app.08f2670...: 47 KB unused (77%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.j...: 26 KB unused (45%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 132 KB
132 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-2JW7QZL7QX149 KB59 KB (40%)✓3rd
https://www.urbandictionary.com/assets/app.08f26704.js62 KB47 KB (77%)✓3rd
https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.js58 KB26 KB (45%)✓3rd
https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/script.js11 KB—✓3rd
https://www.google.com/recaptcha/enterprise.js?render=6Ld5tgYsAAAAAJbQ7kZJJ83v681QB5eCKA2rxyEP1 KB—✓3rd
https://www.urbandictionary.com/prebid.js135 KB—✓3rd
https://cdn.confiant-integrations.net/oUsMi2kpyL-PFddeRIkSo0U4u4E/gpt_and_prebid/config.js56 KB—✓3rd
https://btloader.com/tag?o=5640981779054592&upapi=true31 KB—✓3rd
https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/banner.js39 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

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
no-cache
REVIEW
no-cache
Info::
Cache-Control header is set
Got: no-cache
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache

DirectiveValueMeaning
no-cache—Cache but always revalidate first
A
Page Weight Budget
906 KB transferred, 40 requests
PASS
906 KB transferred, 40 requests
Info::
Page weighs 2.9 MB (906 KB transferred)
Warning::
JavaScript is 541 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 541 KB
Info::
40 HTTP requests
Info::
Estimated 0.19 g CO2 per page load
906 KB / 2.4 MB budget
906 KB transferred
40 requests
0.19 g CO2 per page load
JavaScript 541.3 KiB 60%
Other 138.8 KiB 15%
Images 109.7 KiB 12%
Fonts 65.9 KiB 7%
Other 19.5 KiB 2%
HTML 10.5 KiB 1%
CSS 10.5 KiB 1%
Other 8.9 KiB 1%
Other 759 B 0%
Other 260 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
497ms total JS execution
PASS
497ms total JS execution
Info::
https://cdn-cookieyes.com/client_data/ced78fbb9127...: 140ms CPU time
Info::
https://www.urbandictionary.com/: 113ms CPU time
Info::
Unattributable: 109ms CPU time
Info::
https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.j...: 77ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-2JW7...: 59ms CPU time
Warning::
Third-party scripts: 497ms (100% of total)

Main Thread Breakdown

Script Evaluation 50% Other 22% Style & Layout 15% Script Parsing & Compilation 4% Garbage Collection 4% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/banner.js140ms113ms4ms3rd
https://www.urbandictionary.com/113ms2ms1ms3rd
Unattributable109ms5ms0ms3rd
https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.js77ms68ms3ms3rd
https://www.googletagmanager.com/gtag/js?id=G-2JW7QZL7QX59ms48ms10ms3rd
A+
Font Loading
3 fonts (66 KB)
PASS
3 fonts (66 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

66 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.2 s LCP 2.1 shttps://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7lujVj9w.woff26xK3dSBYKcSV-LCoeQqfX1R... https://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7lujVj9w.woff2 — 14.5 KiB — 28 ms — font-display: swaphttps://fonts.gstatic.com/s/lora/v37/0QIvMX1D_JOuMwr7I_FMl_E.woff20QIvMX1D_JOuMwr7I_FMl_E... https://fonts.gstatic.com/s/lora/v37/0QIvMX1D_JOuMwr7I_FMl_E.woff2 — 36.9 KiB — 54 ms — font-display: swaphttps://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu3cOWxw.woff26xKydSBYKcSV-LCoeQqfX1R... https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu3cOWxw.woff2 — 14.4 KiB — 42 ms — font-display: swap
6xK3dSBYKcSV-LCoeQqfX1R... woff2 swap
Size 15 KB
Load time 28 ms
Start 578 ms
Risk FOUT — text flashes from fallback to web font
0QIvMX1D_JOuMwr7I_FMl_E... woff2 swap
Size 37 KB
Load time 54 ms
Start 578 ms
Risk FOUT — text flashes from fallback to web font
6xKydSBYKcSV-LCoeQqfX1R... woff2 swap
Size 14 KB
Load time 42 ms
Start 578 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
Page Weight Inventory
40 resources · 906 KB · 132 KB savings available
PASS
40 resources · 906 KB · 132 KB savings available
Info::
Within 1MB page-weight target
Got: 906 KB
Info::
~132 KB of savings available
Warning::
39 third-party resources (100% of weight)
40 resources · 906.1 KiB · 39 third-party Within 1MB page-weight target
JavaScript 60% · 541.3 KiB
Other 17% · 158.2 KiB
Image 13% · 118.4 KiB
Font 7% · 65.9 KiB
Document 1% · 11.8 KiB
CSS 1% · 10.5 KiB

~132.4 KiB of savings available

Remove unused JavaScript: 132.4 KiB
Network Waterfall
40 requests over 1106ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.2 s LCP 2.1 shttps://urbandictionary.com// https://urbandictionary.com/ — 301 — 209 B — 284 ms — h2https://www.urbandictionary.com/www.urbandictionary.com/ https://www.urbandictionary.com/ — 200 — 10.5 KiB — 101 ms — h2https://www.googletagmanager.com/gtag/js?id=G-2JW7QZL7QXwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-2JW7QZL7QX — 200 — 148.8 KiB — 151 ms — h2https://fonts.googleapis.com/css2?family=Lora:wght@400;700&family=Source+Sans+Pro:wght@400;700&display=swapfonts.googleapis.com/css2?family=Lo... https://fonts.googleapis.com/css2?family=Lora:wght@400;700&family=Source+Sans+Pro:wght@400;700&display=swap — 200 — 2.2 KiB — 75 ms — h2https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.csscdn.jsdelivr.net/npm/unpoly@3/unpol... https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.css — 200 — 1.5 KiB — 15 ms — h2https://www.urbandictionary.com/assets/style.ed7b3cde.csswww.urbandictionary.com/assets/styl... https://www.urbandictionary.com/assets/style.ed7b3cde.css — 200 — 6.8 KiB — 37 ms — h2https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.jscdn.jsdelivr.net/npm/unpoly@3/unpol... https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.js — 200 — 58.2 KiB — 17 ms — h2https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/script.jscdn-cookieyes.com/client_data/ced78... https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/script.js — 200 — 11.1 KiB — 72 ms — h2https://www.urbandictionary.com/assets/app.08f26704.jswww.urbandictionary.com/assets/app.... https://www.urbandictionary.com/assets/app.08f26704.js — 200 — 62.0 KiB — 85 ms — h2https://log.cookieyes.com/api/v1/loglog.cookieyes.com/api/v1/log https://log.cookieyes.com/api/v1/log — 200 — 260 B — 74 ms — h3https://www.google.com/recaptcha/enterprise.js?render=6Ld5tgYsAAAAAJbQ7kZJJ83v681QB5eCKA2rxyEPwww.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise.js?render=6Ld5tgYsAAAAAJbQ7kZJJ83v681QB5eCKA2rxyEP — 200 — 1.1 KiB — 65 ms — h3https://www.urbandictionary.com/prebid.jswww.urbandictionary.com/prebid.js https://www.urbandictionary.com/prebid.js — 200 — 134.5 KiB — 76 ms — h2https://cdn.confiant-integrations.net/oUsMi2kpyL-PFddeRIkSo0U4u4E/gpt_and_prebid/config.jscdn.confiant-integrations.net/oUsMi... https://cdn.confiant-integrations.net/oUsMi2kpyL-PFddeRIkSo0U4u4E/gpt_and_prebid/config.js — 200 — 56.3 KiB — 90 ms — h3https://btloader.com/tag?o=5640981779054592&upapi=truebtloader.com/tag?o=5640981779054592... https://btloader.com/tag?o=5640981779054592&upapi=true — 200 — 30.6 KiB — 78 ms — h2https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/banner.jscdn-cookieyes.com/client_data/ced78... https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/banner.js — 200 — 38.7 KiB — 32 ms — h2https://www.urbandictionary.com/assets/sprite.dc08a6d0.svgwww.urbandictionary.com/assets/spri... https://www.urbandictionary.com/assets/sprite.dc08a6d0.svg — 200 — 6.6 KiB — 69 ms — h2https://www.urbandictionary.com/site.webmanifestwww.urbandictionary.com/site.webman... https://www.urbandictionary.com/site.webmanifest — 200 — 759 B — 99 ms — h2https://www.urbandictionary.com/images/circle-backgrounds/circle_bg_2.jpgwww.urbandictionary.com/images/circ... https://www.urbandictionary.com/images/circle-backgrounds/circle_bg_2.jpg — 200 — 25.2 KiB — 48 ms — h2data:image/svg+xml,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle fill…www.w3.org/2000/svg'%3E%3Ccircle fi... data:image/svg+xml,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle fill… — 200 — 0 B — 0 ms — datahttps://udimg.com/v1/preview/mug/front.webp?bg=F82418&fg=FFFFFF&fill=FF00FF&logo-variant=dark&word=Wasian&size=xxsudimg.com/v1/preview/mug/front.webp... https://udimg.com/v1/preview/mug/front.webp?bg=F82418&fg=FFFFFF&fill=FF00FF&logo-variant=dark&word=Wasian&size=xxs — 200 — 13.4 KiB — 385 ms — h2https://udimg.com/v1/preview/mug/front.webp?bg=F82418&fg=FFFFFF&fill=FF00FF&logo-variant=dark&word=whitelisted&size=xxsudimg.com/v1/preview/mug/front.webp... https://udimg.com/v1/preview/mug/front.webp?bg=F82418&fg=FFFFFF&fill=FF00FF&logo-variant=dark&word=whitelisted&size=xxs — 200 — 13.0 KiB — 406 ms — h2https://udimg.com/v1/preview/mug/front.webp?bg=2EFF3D&fg=000000&fill=FF00FF&logo-variant=dark&word=futch&size=xxsudimg.com/v1/preview/mug/front.webp... https://udimg.com/v1/preview/mug/front.webp?bg=2EFF3D&fg=000000&fill=FF00FF&logo-variant=dark&word=futch&size=xxs — 200 — 13.5 KiB — 508 ms — h2https://udimg.com/v1/preview/mug/front.webp?bg=2EFF3D&fg=000000&fill=FF00FF&logo-variant=dark&word=deinfluence&size=xxsudimg.com/v1/preview/mug/front.webp... https://udimg.com/v1/preview/mug/front.webp?bg=2EFF3D&fg=000000&fill=FF00FF&logo-variant=dark&word=deinfluence&size=xxs — 200 — 12.9 KiB — 530 ms — h2https://udimg.com/v1/preview/mug/front.webp?bg=2EFF3D&fg=000000&fill=FF00FF&logo-variant=dark&word=boy%20kibble&size=xxsudimg.com/v1/preview/mug/front.webp... https://udimg.com/v1/preview/mug/front.webp?bg=2EFF3D&fg=000000&fill=FF00FF&logo-variant=dark&word=boy%20kibble&size=xxs — 200 — 14.9 KiB — 484 ms — h2https://udimg.com/v1/preview/mug/front.webp?bg=53F7FF&fg=000000&fill=FF00FF&logo-variant=dark&word=FoMo&size=xxsudimg.com/v1/preview/mug/front.webp... https://udimg.com/v1/preview/mug/front.webp?bg=53F7FF&fg=000000&fill=FF00FF&logo-variant=dark&word=FoMo&size=xxs — 200 — 13.4 KiB — 437 ms — h2https://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7lujVj9w.woff2fonts.gstatic.com/s/sourcesanspro/v... https://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7lujVj9w.woff2 — 200 — 14.5 KiB — 28 ms — h3https://fonts.gstatic.com/s/lora/v37/0QIvMX1D_JOuMwr7I_FMl_E.woff2fonts.gstatic.com/s/lora/v37/0QIvMX... https://fonts.gstatic.com/s/lora/v37/0QIvMX1D_JOuMwr7I_FMl_E.woff2 — 200 — 36.9 KiB — 54 ms — h3https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu3cOWxw.woff2fonts.gstatic.com/s/sourcesanspro/v... https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu3cOWxw.woff2 — 200 — 14.4 KiB — 42 ms — h3https://www.urbandictionary.com/ui/votes?defids=6884013,12887481,2710523,17750135,18563375,18633169,18632074www.urbandictionary.com/ui/votes?de... https://www.urbandictionary.com/ui/votes?defids=6884013,12887481,2710523,17750135,18563375,18633169,18632074 — 200 — 1.1 KiB — 119 ms — h2https://cdn-cookieyes.com/common/iab-gvl-v3.jsoncdn-cookieyes.com/common/iab-gvl-v3... https://cdn-cookieyes.com/common/iab-gvl-v3.json — 200 — 137.6 KiB — 95 ms — h2
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.2 s LCP 2.1 shttps://urbandictionary.com// https://urbandictionary.com/ — 301 — 209 B — 284 ms — h2https://www.urbandictionary.com/www.urbandictionary.com/ https://www.urbandictionary.com/ — 200 — 10.5 KiB — 101 ms — h2https://www.googletagmanager.com/gtag/js?id=G-2JW7QZL7QXwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-2JW7QZL7QX — 200 — 148.8 KiB — 151 ms — h2https://fonts.googleapis.com/css2?family=Lora:wght@400;700&family=Source+Sans+Pro:wght@400;700&display=swapfonts.googleapis.com/css2?family=Lo... https://fonts.googleapis.com/css2?family=Lora:wght@400;700&family=Source+Sans+Pro:wght@400;700&display=swap — 200 — 2.2 KiB — 75 ms — h2https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.csscdn.jsdelivr.net/npm/unpoly@3/unpol... https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.css — 200 — 1.5 KiB — 15 ms — h2https://www.urbandictionary.com/assets/style.ed7b3cde.csswww.urbandictionary.com/assets/styl... https://www.urbandictionary.com/assets/style.ed7b3cde.css — 200 — 6.8 KiB — 37 ms — h2https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.jscdn.jsdelivr.net/npm/unpoly@3/unpol... https://cdn.jsdelivr.net/npm/unpoly@3/unpoly.min.js — 200 — 58.2 KiB — 17 ms — h2https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/script.jscdn-cookieyes.com/client_data/ced78... https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/script.js — 200 — 11.1 KiB — 72 ms — h2https://www.urbandictionary.com/assets/app.08f26704.jswww.urbandictionary.com/assets/app.... https://www.urbandictionary.com/assets/app.08f26704.js — 200 — 62.0 KiB — 85 ms — h2https://log.cookieyes.com/api/v1/loglog.cookieyes.com/api/v1/log https://log.cookieyes.com/api/v1/log — 200 — 260 B — 74 ms — h3https://www.google.com/recaptcha/enterprise.js?render=6Ld5tgYsAAAAAJbQ7kZJJ83v681QB5eCKA2rxyEPwww.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise.js?render=6Ld5tgYsAAAAAJbQ7kZJJ83v681QB5eCKA2rxyEP — 200 — 1.1 KiB — 65 ms — h3https://www.urbandictionary.com/prebid.jswww.urbandictionary.com/prebid.js https://www.urbandictionary.com/prebid.js — 200 — 134.5 KiB — 76 ms — h2https://cdn.confiant-integrations.net/oUsMi2kpyL-PFddeRIkSo0U4u4E/gpt_and_prebid/config.jscdn.confiant-integrations.net/oUsMi... https://cdn.confiant-integrations.net/oUsMi2kpyL-PFddeRIkSo0U4u4E/gpt_and_prebid/config.js — 200 — 56.3 KiB — 90 ms — h3https://btloader.com/tag?o=5640981779054592&upapi=truebtloader.com/tag?o=5640981779054592... https://btloader.com/tag?o=5640981779054592&upapi=true — 200 — 30.6 KiB — 78 ms — h2https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/banner.jscdn-cookieyes.com/client_data/ced78... https://cdn-cookieyes.com/client_data/ced78fbb9127e3b468b5411b/banner.js — 200 — 38.7 KiB — 32 ms — h2https://www.urbandictionary.com/assets/sprite.dc08a6d0.svgwww.urbandictionary.com/assets/spri... https://www.urbandictionary.com/assets/sprite.dc08a6d0.svg — 200 — 6.6 KiB — 69 ms — h2https://www.urbandictionary.com/site.webmanifestwww.urbandictionary.com/site.webman... https://www.urbandictionary.com/site.webmanifest — 200 — 759 B — 99 ms — h2https://www.urbandictionary.com/images/circle-backgrounds/circle_bg_2.jpgwww.urbandictionary.com/images/circ... https://www.urbandictionary.com/images/circle-backgrounds/circle_bg_2.jpg — 200 — 25.2 KiB — 48 ms — h2data:image/svg+xml,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle fill…www.w3.org/2000/svg'%3E%3Ccircle fi... data:image/svg+xml,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle fill… — 200 — 0 B — 0 ms — datahttps://udimg.com/v1/preview/mug/front.webp?bg=F82418&fg=FFFFFF&fill=FF00FF&logo-variant=dark&word=Wasian&size=xxsudimg.com/v1/preview/mug/front.webp... 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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 497ms · 256KB · €5/mo
cdn-cookieyes.com
Other
Optional
Execution 140ms
Transfer 39 KB
Monthly Cost €2/mo
www.urbandictionary.com
Other
Optional
Execution 113ms
Transfer 11 KB
Monthly Cost €1/mo
Unattributable
Other
Optional
Execution 109ms
Transfer 0 KB
Monthly Cost €1/mo
jsDelivr
CDN
Optional
Execution 77ms
Transfer 58 KB
Unused 45%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 59ms
Transfer 149 KB
Unused 40%
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

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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