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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
78
GRADE
C
FIX
3
REVIEW
3
PASS
7
INFO
2

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

Mobile Desktop
77
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
65
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

1.70 s

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

2.42 s

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

129 ms

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

0.011

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

1.70 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.

2.42 s

Page Load Progression

544 ms
1.1 s
1.6 s
2.2 s
2.7 s
3.3 s
3.8 s
4.4 s
Checks
15
7 PASS 3 REVIEW 3 FIX
F
Page Weight Budget
Action
3.4 MB transferred, 50 requests
FIX
3.4 MB transferred, 50 requests
Warning::
Page weighs 12.9 MB (3.4 MB transferred)
Warning::
JavaScript is 1.2 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.2 MB
Info::
50 HTTP requests
Info::
Estimated 0.71 g CO2 per page load
3.4 MB / 2.4 MB budget
3.4 MB transferred
50 requests
0.71 g CO2 per page load
Other 1.7 MiB 51%
JavaScript 1.2 MiB 37%
Fonts 188.2 KiB 5%
Other 128.0 KiB 4%
CSS 70.2 KiB 2%
HTML 31.3 KiB 1%
Images 8.6 KiB 0%
Other 1.5 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over 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

F
JS Bundles
Action
30 scripts, 616 KB unused
FIX
30 scripts, 616 KB unused
Warning::
https://jsfiddle.net/js/lib/monaco-editor/min/vs/e...: 616 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 616 KB
616 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.js?a5d18b050a5a2ca908634e556824833385a8472d1079 KB616 KB (57%)✓1st
https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.8/+esm8 KB—✓3rd
https://jsfiddle.net/js/lib/monaco-editor/min/vs/base/worker/workerMain.js125 KB—✓1st
https://cdn.carbonads.com/carbon.js?serve=CW7DC2JY&placement=jsfiddlenet&format=cover10 KB—✓3rd
https://m.servedby-buysellads.com/monetization.js17 KB—✓3rd
https://unpkg.com/external-svg-loader@1.7.1/svg-loader.min.js4 KB—✓3rd
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312451611 KB—✓3rd
https://jsfiddle.net/js/lib/monaco-editor/min/vs/basic-languages/javascript/javascript.js3 KB—✓1st
https://jsfiddle.net/js/lib/monaco-editor/min/vs/language/typescript/tsMode.js8 KB—✓1st
https://cdn.jsdelivr.net/npm/emmet-monaco-es@5.5.0/+esm32 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

D
Page Weight Inventory
Action
50 resources · 3.4 MB · 616 KB savings available
FIX
50 resources · 3.4 MB · 616 KB savings available
Warning::
Page weight 2.4 MB over 1MB target
Got: 3.4 MB Expected: ≤ 1 MB
Info::
~616 KB of savings available
Info::
20 third-party resources (3% of weight)
Info::
2 resources over 200KB
50 resources · 3.4 MiB · 20 third-party 2.4 MiB over 1MB target
JavaScript 91% · 3.1 MiB
Font 5% · 188.2 KiB
CSS 2% · 70.2 KiB
Document 1% · 31.3 KiB
Image 0% · 10.5 KiB
Other 0% · 4.2 KiB

~616.1 KiB of savings available

Remove unused JavaScript: 616.1 KiB
B
Image Optimization
2 images, 0 KB saveable
REVIEW
2 images, 0 KB saveable
Warning::
https://srv.carbonads.net/static/30242/098773e74d9... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://srv.carbonads.net/static/30242/22254433000... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
2 images 9 KB
0 oversized -0 KB
2 legacy format
2 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

B
JS Execution Cost
886ms total JS execution
REVIEW
886ms total JS execution
Warning::
https://jsfiddle.net/: 357ms CPU time
Warning::
https://jsfiddle.net/js/lib/monaco-editor/min/vs/e...: 308ms CPU time
Info::
Unattributable: 131ms CPU time
Info::
https://jsfiddle.net/cdn-cgi/challenge-platform/sc...: 90ms CPU time
Info::
Third-party scripts: 131ms (15% of total)

Main Thread Breakdown

Script Evaluation 46% Other 21% Style & Layout 14% Script Parsing & Compilation 8% Parse HTML & CSS 4% Rendering 3% Garbage Collection 3%
ScriptTotalScriptingParse/CompileParty
https://jsfiddle.net/357ms103ms1ms1st
https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.js?a5d18b050a5a2ca908634e556824833385a8472d308ms179ms76ms1st
Unattributable131ms6ms0ms3rd
https://jsfiddle.net/cdn-cgi/challenge-platform/scripts/jsd/main.js90ms73ms1ms1st
B
HTTP Caching
max-age=0, private, must-revalidate
REVIEW
max-age=0, private, must-revalidate
Info::
Cache-Control header is set
Got: max-age=0, private, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=0, private, must-revalidate

DirectiveValueMeaning
max-age0Cache for 0 seconds
private—Only browser cache, not CDN/proxy
must-revalidate—Must recheck with server after expiry
A+
Third-Party Impact
3% third-party, 0 ms blocking
PASS
3% third-party, 0 ms blocking
Info::
Third-party code accounts for 3% of page weight (108.5 KiB of 3.4 MiB)
Info::
Third-party blocking time is low (0 ms)
97%
First-party Third-party
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
2 fonts (188 KB)
PASS
2 fonts (188 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

188 KB total

Render-blocking

0

of 2

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 2.5 s FCP 1.7 s LCP 2.4 shttps://jsfiddle.net/cf-fonts/v/inter/5.0.16/latin/wght/normal.woff2normal.woff2 https://jsfiddle.net/cf-fonts/v/inter/5.0.16/latin/wght/normal.woff2 — 47.6 KiB — 38 ms — font-display: swaphttps://jsfiddle.net/font/MonaspaceArgonVarVF[wght,wdth,slnt].woff2MonaspaceArgonVarVF[wgh... https://jsfiddle.net/font/MonaspaceArgonVarVF[wght,wdth,slnt].woff2 — 140.6 KiB — 29 ms — font-display: swap
normal.woff2 woff2 swap
Size 48 KB
Load time 38 ms
Start 584 ms
Risk FOUT — text flashes from fallback to web font
MonaspaceArgonVarVF[wgh... woff2 swap
Size 141 KB
Load time 29 ms
Start 830 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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)

Fixing the unchecked items could save ~70 KB and ~140 ms

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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
50 requests over 1989ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.7 s LCP 2.4 shttps://jsfiddle.net// https://jsfiddle.net/ — 200 — 31.3 KiB — 221 ms — h3https://jsfiddle.net/cdn-cgi/speculation/cdn-cgi/speculation https://jsfiddle.net/cdn-cgi/speculation — 200 — 578 B — 23 ms — h3https://jsfiddle.net/css/dist-skeleton.css?a5d18b050a5a2ca908634e556824833385a8472d/css/dist-skeleton.css?a5d18b050a5a... https://jsfiddle.net/css/dist-skeleton.css?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 4.4 KiB — 28 ms — h3https://jsfiddle.net/css/dist-editor.css?a5d18b050a5a2ca908634e556824833385a8472d/css/dist-editor.css?a5d18b050a5a2c... https://jsfiddle.net/css/dist-editor.css?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 14.1 KiB — 34 ms — h3https://jsfiddle.net/js/_dist-editor.js?a5d18b050a5a2ca908634e556824833385a8472d/js/_dist-editor.js?a5d18b050a5a2ca... https://jsfiddle.net/js/_dist-editor.js?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 23.6 KiB — 45 ms — h3https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.css?a5d18b050a5a2ca908634e556824833385a8472d/js/lib/monaco-editor/min/vs/editor... https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.css?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 25.9 KiB — 62 ms — h3https://jsfiddle.net/js/lib/monaco-editor/min/vs/loader.js?a5d18b050a5a2ca908634e556824833385a8472d/js/lib/monaco-editor/min/vs/loader... https://jsfiddle.net/js/lib/monaco-editor/min/vs/loader.js?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 10.6 KiB — 53 ms — h3https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.js?a5d18b050a5a2ca908634e556824833385a8472d/js/lib/monaco-editor/min/vs/editor... https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.js?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 1.1 MiB — 125 ms — h3https://cdn.carbonads.com/carbon.js?serve=CW7DC2JY&placement=jsfiddlenet&format=covercdn.carbonads.com/carbon.js?serve=C... https://cdn.carbonads.com/carbon.js?serve=CW7DC2JY&placement=jsfiddlenet&format=cover — 200 — 10.1 KiB — 13 ms — h2https://m.servedby-buysellads.com/monetization.jsm.servedby-buysellads.com/monetizat... https://m.servedby-buysellads.com/monetization.js — 200 — 16.8 KiB — 14 ms — h2https://unpkg.com/external-svg-loader@latest/svg-loader.min.jsunpkg.com/external-svg-loader@lates... https://unpkg.com/external-svg-loader@latest/svg-loader.min.js — 302 — 310 B — 64 ms — h3https://unpkg.com/external-svg-loader@1.7.1/svg-loader.min.jsunpkg.com/external-svg-loader@1.7.1... https://unpkg.com/external-svg-loader@1.7.1/svg-loader.min.js — 200 — 3.5 KiB — 32 ms — h3https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 64 ms — h2https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.css/js/lib/monaco-editor/min/vs/editor... https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.css — 200 — 25.9 KiB — 26 ms — h3https://jsfiddle.net/cf-fonts/v/inter/5.0.16/latin/wght/normal.woff2/cf-fonts/v/inter/5.0.16/latin/wght... https://jsfiddle.net/cf-fonts/v/inter/5.0.16/latin/wght/normal.woff2 — 200 — 47.6 KiB — 38 ms — h3https://srv.carbonads.net/ads/CW7DC2JY.json?segment=placement:jsfiddlenetsrv.carbonads.net/ads/CW7DC2JY.json... https://srv.carbonads.net/ads/CW7DC2JY.json?segment=placement:jsfiddlenet — 200 — 0 B — 88 ms — h2https://srv.buysellads.com/ads/CKYD52JI.json?segment=placement:jsfiddlenet-customsrv.buysellads.com/ads/CKYD52JI.jso... https://srv.buysellads.com/ads/CKYD52JI.json?segment=placement:jsfiddlenet-custom — 200 — 0 B — 99 ms — h2https://jsfiddle.net/cdn-cgi/challenge-platform/scripts/jsd/main.js/cdn-cgi/challenge-platform/scripts... https://jsfiddle.net/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 223 B — 173 ms — h3https://srv.carbonads.net/ads/CW7DC2JY.json?segment=placement:jsfiddlenetsrv.carbonads.net/ads/CW7DC2JY.json... https://srv.carbonads.net/ads/CW7DC2JY.json?segment=placement:jsfiddlenet — 200 — 945 B — 29 ms — h2https://jsfiddle.net/js/lib/monaco-editor/min/vs/basic-languages/javascript/javascript.js/js/lib/monaco-editor/min/vs/basic-... https://jsfiddle.net/js/lib/monaco-editor/min/vs/basic-languages/javascript/javascript.js — 200 — 3.3 KiB — 28 ms — h3https://jsfiddle.net/js/lib/monaco-editor/min/vs/language/typescript/tsMode.js/js/lib/monaco-editor/min/vs/langua... https://jsfiddle.net/js/lib/monaco-editor/min/vs/language/typescript/tsMode.js — 200 — 8.0 KiB — 27 ms — h3https://srv.buysellads.com/ads/CKYD52JI.json?segment=placement:jsfiddlenet-customsrv.buysellads.com/ads/CKYD52JI.jso... https://srv.buysellads.com/ads/CKYD52JI.json?segment=placement:jsfiddlenet-custom — 200 — 604 B — 33 ms — h2https://cdn.jsdelivr.net/npm/emmet-monaco-es@5.5.0/+esmcdn.jsdelivr.net/npm/emmet-monaco-e... https://cdn.jsdelivr.net/npm/emmet-monaco-es@5.5.0/+esm — 200 — 32.4 KiB — 9 ms — h2https://jsfiddle.net/js/lib/monaco-editor/min/vs/basic-languages/html/html.js/js/lib/monaco-editor/min/vs/basic-... https://jsfiddle.net/js/lib/monaco-editor/min/vs/basic-languages/html/html.js — 200 — 2.4 KiB — 28 ms — h3https://jsfiddle.net/js/lib/monaco-editor/min/vs/language/html/htmlMode.js/js/lib/monaco-editor/min/vs/langua... https://jsfiddle.net/js/lib/monaco-editor/min/vs/language/html/htmlMode.js — 200 — 10.7 KiB — 30 ms — h3https://jsfiddle.net/js/lib/monaco-editor/min/vs/basic-languages/css/css.js/js/lib/monaco-editor/min/vs/basic-... https://jsfiddle.net/js/lib/monaco-editor/min/vs/basic-languages/css/css.js — 200 — 2.4 KiB — 25 ms — h3https://jsfiddle.net/js/lib/monaco-editor/min/vs/language/css/cssMode.js/js/lib/monaco-editor/min/vs/langua... https://jsfiddle.net/js/lib/monaco-editor/min/vs/language/css/cssMode.js — 200 — 10.5 KiB — 28 ms — h3https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.8/+esmcdn.jsdelivr.net/npm/@popperjs/core... https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.8/+esm — 200 — 7.9 KiB — 6 ms — h2https://jsfiddle.net/font/MonaspaceArgonVarVF[wght,wdth,slnt].woff2/font/MonaspaceArgonVarVF[wght,wdth... https://jsfiddle.net/font/MonaspaceArgonVarVF[wght,wdth,slnt].woff2 — 200 — 140.6 KiB — 29 ms — h3https://jsfiddle.net/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?/cdn-cgi/challenge-platform/h/b/scr... https://jsfiddle.net/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js? — 200 — 12.0 KiB — 22 ms — h3
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.7 s LCP 2.4 shttps://jsfiddle.net// https://jsfiddle.net/ — 200 — 31.3 KiB — 221 ms — h3https://jsfiddle.net/cdn-cgi/speculation/cdn-cgi/speculation https://jsfiddle.net/cdn-cgi/speculation — 200 — 578 B — 23 ms — h3https://jsfiddle.net/css/dist-skeleton.css?a5d18b050a5a2ca908634e556824833385a8472d/css/dist-skeleton.css?a5d18b050a5a... https://jsfiddle.net/css/dist-skeleton.css?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 4.4 KiB — 28 ms — h3https://jsfiddle.net/css/dist-editor.css?a5d18b050a5a2ca908634e556824833385a8472d/css/dist-editor.css?a5d18b050a5a2c... https://jsfiddle.net/css/dist-editor.css?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 14.1 KiB — 34 ms — h3https://jsfiddle.net/js/_dist-editor.js?a5d18b050a5a2ca908634e556824833385a8472d/js/_dist-editor.js?a5d18b050a5a2ca... https://jsfiddle.net/js/_dist-editor.js?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 23.6 KiB — 45 ms — h3https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.css?a5d18b050a5a2ca908634e556824833385a8472d/js/lib/monaco-editor/min/vs/editor... https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.css?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 25.9 KiB — 62 ms — h3https://jsfiddle.net/js/lib/monaco-editor/min/vs/loader.js?a5d18b050a5a2ca908634e556824833385a8472d/js/lib/monaco-editor/min/vs/loader... https://jsfiddle.net/js/lib/monaco-editor/min/vs/loader.js?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 10.6 KiB — 53 ms — h3https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.js?a5d18b050a5a2ca908634e556824833385a8472d/js/lib/monaco-editor/min/vs/editor... https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.js?a5d18b050a5a2ca908634e556824833385a8472d — 200 — 1.1 MiB — 125 ms — h3https://cdn.carbonads.com/carbon.js?serve=CW7DC2JY&placement=jsfiddlenet&format=covercdn.carbonads.com/carbon.js?serve=C... https://cdn.carbonads.com/carbon.js?serve=CW7DC2JY&placement=jsfiddlenet&format=cover — 200 — 10.1 KiB — 13 ms — h2https://m.servedby-buysellads.com/monetization.jsm.servedby-buysellads.com/monetizat... https://m.servedby-buysellads.com/monetization.js — 200 — 16.8 KiB — 14 ms — h2https://unpkg.com/external-svg-loader@latest/svg-loader.min.jsunpkg.com/external-svg-loader@lates... https://unpkg.com/external-svg-loader@latest/svg-loader.min.js — 302 — 310 B — 64 ms — h3https://unpkg.com/external-svg-loader@1.7.1/svg-loader.min.jsunpkg.com/external-svg-loader@1.7.1... https://unpkg.com/external-svg-loader@1.7.1/svg-loader.min.js — 200 — 3.5 KiB — 32 ms — h3https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 64 ms — h2https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.css/js/lib/monaco-editor/min/vs/editor... https://jsfiddle.net/js/lib/monaco-editor/min/vs/editor/editor.main.css — 200 — 25.9 KiB — 26 ms — h3https://jsfiddle.net/cf-fonts/v/inter/5.0.16/latin/wght/normal.woff2/cf-fonts/v/inter/5.0.16/latin/wght... https://jsfiddle.net/cf-fonts/v/inter/5.0.16/latin/wght/normal.woff2 — 200 — 47.6 KiB — 38 ms — h3https://srv.carbonads.net/ads/CW7DC2JY.json?segment=placement:jsfiddlenetsrv.carbonads.net/ads/CW7DC2JY.json... https://srv.carbonads.net/ads/CW7DC2JY.json?segment=placement:jsfiddlenet — 200 — 0 B — 88 ms — h2https://srv.buysellads.com/ads/CKYD52JI.json?segment=placement:jsfiddlenet-customsrv.buysellads.com/ads/CKYD52JI.jso... https://srv.buysellads.com/ads/CKYD52JI.json?segment=placement:jsfiddlenet-custom — 200 — 0 B — 99 ms — h2https://jsfiddle.net/cdn-cgi/challenge-platform/scripts/jsd/main.js/cdn-cgi/challenge-platform/scripts... 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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
15% of JavaScript execution is third-party
First-party Third-party 131ms · 0KB · $2/mo
Unattributable
Other
Optional
Execution 131ms
Transfer 0 KB
Monthly Cost $2/mo

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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