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https://hackaday.io

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
73
GRADE
C
FIX
4
REVIEW
4
PASS
5
INFO
2

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

Mobile Desktop
84
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
86
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
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.

822 ms

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

2.66 s

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

4 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.

1.32 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.

3.02 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
F
Page Weight Budget
Action
5.6 MB transferred, 50 requests
FIX
5.6 MB transferred, 50 requests
Critical::
Page weighs 8.3 MB (5.6 MB transferred)
Warning::
Images are 4.6 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 4.6 MB
Warning::
JavaScript is 688 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 688 KB
Info::
50 HTTP requests
Info::
Estimated 1.2 g CO2 per page load
5.6 MB / 2.4 MB budget
5.6 MB transferred
50 requests
1.2 g CO2 per page load
Images 4.6 MiB 83%
JavaScript 688.3 KiB 12%
Other 130.9 KiB 2%
CSS 85.4 KiB 1%
Other 31.7 KiB 1%
HTML 10.6 KiB 0%
Other 9.0 KiB 0%
Other 292 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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

D
Third-Party Impact
Action
97% third-party, 0 ms blocking
FIX
97% third-party, 0 ms blocking
Warning::
Third-party code accounts for 97% of page weight (5.4 MiB of 5.6 MiB)
Info::
Third-party blocking time is low (0 ms)
97%
First-party Third-party
D
Page Weight Inventory
Action
50 resources · 5.6 MB · 274 KB savings available
FIX
50 resources · 5.6 MB · 274 KB savings available
Warning::
Page weight 4.6 MB over 1MB target
Got: 5.6 MB Expected: ≤ 1 MB
Info::
~274 KB of savings available
Warning::
46 third-party resources (97% of weight)
Info::
5 resources over 200KB
50 resources · 5.6 MiB · 46 third-party 4.6 MiB over 1MB target
Image 84% · 4.7 MiB
JavaScript 12% · 688.3 KiB
Other 2% · 140.5 KiB
CSS 1% · 85.4 KiB
Document 0% · 10.6 KiB

~274.3 KiB of savings available

Remove unused JavaScript: 274.3 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.
Info::
ETag present — enables conditional (304) responses

No Cache-Control header

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

C
Image Optimization
Action
19 images, 0 KB saveable
REVIEW
19 images, 0 KB saveable
Warning::
https://cdn.hackaday.io/images/resize/300x200/6443... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.hackaday.io/images/resize/128x128/7762... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.hackaday.io/images/3683671525888533541... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.hackaday.io/images/resize/128x128/7255... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.hackaday.io/images/7762271593645154291... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.hackaday.io/images/resize/128x128/3683... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://analytics.supplyframe.com/trackingservlet/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.hackaday.io/images/7255311484679597966... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.hackaday.io/images/resize/300x200/3181... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
19 images 4.6 MB
0 oversized -0 KB
19 legacy format
9 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

B
JS Execution Cost
753ms total JS execution
REVIEW
753ms total JS execution
Info::
https://cdn.hackaday.io/build/BMYGeAy2cbQWKJq2%2BO...: 239ms CPU time
Info::
Unattributable: 139ms CPU time
Info::
https://hackaday.io/: 126ms CPU time
Info::
https://maps.googleapis.com/maps-api-v3/api/js/64/...: 95ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-9XKD...: 94ms CPU time
Warning::
Third-party scripts: 626ms (83% of total)

Main Thread Breakdown

Script Evaluation 42% Other 32% Script Parsing & Compilation 11% Style & Layout 10%
ScriptTotalScriptingParse/CompileParty
https://cdn.hackaday.io/build/BMYGeAy2cbQWKJq2%2BOUCBAVOetyg1P0mrMh7GwYaeoLfqE9LNsc1HOCGXMHbMX%2B7mrVgUJAq1wVhQbofTVkMkf5zzJMr935mf0bY4fTLnDOPMqP3ob5kuSmfIGRyPoQsuO7G4V9HO57DXFUVFXdu%2FvAlgJyzHJAS094kXQWMM1e0GcF4%2BUWNDySunpU6y76BJybFMdoyl5vbiRc92%2Fy68CDarVhP1lu%2BI70yl9ICk2u3z87F4cq4OBMF8pQkCDt4tFt8fueyF8UUkHqGBMc152ro7WakKgzn92zennDzAy8PnMUDMjg4tFFSm7W9cYvkRwjAPjNhYeUy2wTKoU6hg7LVA2RS94p0RohTMBugohQl%2FPL8aCy6A63g2v4IXThgcyTMT93HI2sGgwPHNTmEDSjQKK1dNkBXzjvJOs2uw9kV2%2FQ9BbsZAv6aXu0IPOkXPJLI4e1WGZ9FGZnHlFAKqXwH5AJXmALmAppE%2F5NgdZCr508uGQQMCsUvHgOKUY8lpVmKpBMhJyuYp30xhgtDcqulKXuYnXrCiVKDqBI%2FLzrw6dp8JyWWEO8%2FnUKFnCzhzNKeNibP5mIDkgHeMMCocw%3D%3D-1.8.5.js239ms85ms28ms3rd
Unattributable139ms5ms0ms3rd
https://hackaday.io/126ms15ms11ms1st
https://maps.googleapis.com/maps-api-v3/api/js/64/9c/main.js95ms76ms12ms3rd
https://www.googletagmanager.com/gtag/js?id=G-9XKDJZELWD94ms76ms17ms3rd
https://web.cmp.usercentrics.eu/ui/v/3.117.0/WebSdk.lib.4c6726a9.js60ms47ms10ms3rd
C
JS Bundles
Action
15 scripts, 274 KB unused
REVIEW
15 scripts, 274 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-9XKD...: 61 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.hackaday.io/build/BMYGeAy2cbQWKJq2%2BO...: 53 KB unused (62%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://maps.googleapis.com/maps-api-v3/api/js/64/...: 48 KB unused (58%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://web.cmp.usercentrics.eu/ui/v/3.117.0/WebSd...: 35 KB unused (63%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://maps.googleapis.com/maps-api-v3/api/js/64/...: 27 KB unused (74%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 274 KB
274 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-9XKDJZELWD156 KB61 KB (39%)✓3rd
https://cdn.hackaday.io/build/BMYGeAy2cbQWKJq2%2BOUCBAVOetyg1P0mrMh7GwYaeoLfqE9LNsc1HOCGXMHbMX%2B7mrVgUJAq1wVhQbofTVkMkf5zzJMr935mf0bY4fTLnDOPMqP3ob5kuSmfIGRyPoQsuO7G4V9HO57DXFUVFXdu%2FvAlgJyzHJAS094kXQWMM1e0GcF4%2BUWNDySunpU6y76BJybFMdoyl5vbiRc92%2Fy68CDarVhP1lu%2BI70yl9ICk2u3z87F4cq4OBMF8pQkCDt4tFt8fueyF8UUkHqGBMc152ro7WakKgzn92zennDzAy8PnMUDMjg4tFFSm7W9cYvkRwjAPjNhYeUy2wTKoU6hg7LVA2RS94p0RohTMBugohQl%2FPL8aCy6A63g2v4IXThgcyTMT93HI2sGgwPHNTmEDSjQKK1dNkBXzjvJOs2uw9kV2%2FQ9BbsZAv6aXu0IPOkXPJLI4e1WGZ9FGZnHlFAKqXwH5AJXmALmAppE%2F5NgdZCr508uGQQMCsUvHgOKUY8lpVmKpBMhJyuYp30xhgtDcqulKXuYnXrCiVKDqBI%2FLzrw6dp8JyWWEO8%2FnUKFnCzhzNKeNibP5mIDkgHeMMCocw%3D%3D-1.8.5.js85 KB53 KB (62%)✓3rd
https://maps.googleapis.com/maps-api-v3/api/js/64/9c/main.js83 KB48 KB (58%)✓3rd
https://web.cmp.usercentrics.eu/ui/v/3.117.0/WebSdk.lib.4c6726a9.js56 KB35 KB (63%)✓3rd
https://maps.googleapis.com/maps-api-v3/api/js/64/9c/common.js37 KB27 KB (74%)✓3rd
https://maps.googleapis.com/maps-api-v3/api/js/64/9c/util.js70 KB27 KB (38%)✓3rd
https://maps.googleapis.com/maps-api-v3/api/js/64/9c/map.js25 KB23 KB (90%)✓3rd
https://web.cmp.usercentrics.eu/ui/v/3.117.0/UsCmpController.19c71421.js10 KB—✓3rd
https://use.typekit.net/ymb0lgk.js7 KB—✓3rd
https://www.google-analytics.com/analytics.js21 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

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

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
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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 2280ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 822 ms LCP 2.7 shttps://hackaday.io// https://hackaday.io/ — 200 — 9.4 KiB — 436 ms — h2https://cdn.hackaday.io/css/style.css?version=1.8.5cdn.hackaday.io/css/style.css?versi... https://cdn.hackaday.io/css/style.css?version=1.8.5 — 200 — 84.5 KiB — 51 ms — h3https://hackaday.io/img/hackaday-logo.svg/img/hackaday-logo.svg https://hackaday.io/img/hackaday-logo.svg — 200 — 10.6 KiB — 15 ms — h2https://cdn.hackaday.io/images/930711612367682139.pngcdn.hackaday.io/images/930711612367... https://cdn.hackaday.io/images/930711612367682139.png — 200 — 343.9 KiB — 170 ms — h3https://cdn.hackaday.io/images/6500201612367689076.pngcdn.hackaday.io/images/650020161236... https://cdn.hackaday.io/images/6500201612367689076.png — 200 — 75.8 KiB — 102 ms — h3https://cdn.hackaday.io/images/5171941612367697209.pngcdn.hackaday.io/images/517194161236... https://cdn.hackaday.io/images/5171941612367697209.png — 200 — 223.2 KiB — 136 ms — h3https://cdn.hackaday.io/images/2743561612367706592.pngcdn.hackaday.io/images/274356161236... https://cdn.hackaday.io/images/2743561612367706592.png — 200 — 73.6 KiB — 68 ms — h3https://cdn.hackaday.io/images/resize/300x200/6443941765825844051.pngcdn.hackaday.io/images/resize/300x2... https://cdn.hackaday.io/images/resize/300x200/6443941765825844051.png — 200 — 102.3 KiB — 89 ms — h3https://unpkg.com/@lottiefiles/lottie-player@latest/dist/lottie-player.jsunpkg.com/@lottiefiles/lottie-playe... https://unpkg.com/@lottiefiles/lottie-player@latest/dist/lottie-player.js — 302 — 319 B — 101 ms — h3https://analytics.supplyframe.com/trackingservlet/impression?action=pageImpression&zone=HIO_home&extra=logged%3Dfalse%7ChaveAccountCookie%3Dundefined%7C&ab=undefinedanalytics.supplyframe.com/trackings... https://analytics.supplyframe.com/trackingservlet/impression?action=pageImpression&zone=HIO_home&extra=logged%3Dfalse%7ChaveAccountCookie%3Dundefined%7C&ab=undefined — 200 — 350 B — 28 ms — http/1.1https://cdn.hackaday.io/build/BMYGeAy2cbQWKJq2%2BOUCBAVOetyg1P0mrMh7GwYaeoLfqE9LNsc1HOCGXMHbMX%2B7mrVgUJAq1wVhQbofTVkMkf5zzJMr935mf0bY4fTLnDOPMqP3ob5kuSmfIGRyPoQsuO7G4V9HO57DXFUVFXdu%2FvAlgJyzHJAS094kXQWMM1e0GcF4%2BUWNDySunpU6y76BJybFMdoyl5vbiRc92%2Fy68CDarVhP1lu%2BI70yl9ICk2u3z87F4cq4OBMF8pQkCDt4tFt8fueyF8UUkHqGBMc152ro7WakKgzn92zennDzAy8PnMUDMjg4tFFSm7W9cYvkRwjAPjNhYeUy2wTKoU6hg7LVA2RS94p0RohTMBugohQl%2FPL8aCy6A63g2v4IXThgcyTMT93HI2sGgwPHNTmEDSjQKK1dNkBXzjvJOs2uw9kV2%2FQ9BbsZAv6aXu0IPOkXPJLI4e1WGZ9FGZnHlFAKqXwH5AJXmALmAppE%2F5NgdZCr508uGQQMCsUvHgOKUY8lpVmKpBMhJyuYp30xhgtDcqulKXuYnXrCiVKDqBI%2FLzrw6dp8JyWWEO8%2FnUKFnCzhzNKeNibP5mIDkgHeMMCocw%3D%3D-1.8.5.jscdn.hackaday.io/build/BMYGeAy2cbQWK... https://cdn.hackaday.io/build/BMYGeAy2cbQWKJq2%2BOUCBAVOetyg1P0mrMh7GwYaeoLfqE9LNsc1HOCGXMHbMX%2B7mrVgUJAq1wVhQbofTVkMkf5zzJMr935mf0bY4fTLnDOPMqP3ob5kuSmfIGRyPoQsuO7G4V9HO57DXFUVFXdu%2FvAlgJyzHJAS094kXQWMM1e0GcF4%2BUWNDySunpU6y76BJybFMdoyl5vbiRc92%2Fy68CDarVhP1lu%2BI70yl9ICk2u3z87F4cq4OBMF8pQkCDt4tFt8fueyF8UUkHqGBMc152ro7WakKgzn92zennDzAy8PnMUDMjg4tFFSm7W9cYvkRwjAPjNhYeUy2wTKoU6hg7LVA2RS94p0RohTMBugohQl%2FPL8aCy6A63g2v4IXThgcyTMT93HI2sGgwPHNTmEDSjQKK1dNkBXzjvJOs2uw9kV2%2FQ9BbsZAv6aXu0IPOkXPJLI4e1WGZ9FGZnHlFAKqXwH5AJXmALmAppE%2F5NgdZCr508uGQQMCsUvHgOKUY8lpVmKpBMhJyuYp30xhgtDcqulKXuYnXrCiVKDqBI%2FLzrw6dp8JyWWEO8%2FnUKFnCzhzNKeNibP5mIDkgHeMMCocw%3D%3D-1.8.5.js — 200 — 85.5 KiB — 78 ms — h3https://cdn.hackaday.io/images/resize/24x24/1292901638602392962.jpgcdn.hackaday.io/images/resize/24x24... https://cdn.hackaday.io/images/resize/24x24/1292901638602392962.jpg — 200 — 1.0 KiB — 37 ms — h3https://cdn.hackaday.io/images/resize/300x200/3181601765552729736.pngcdn.hackaday.io/images/resize/300x2... https://cdn.hackaday.io/images/resize/300x200/3181601765552729736.png — 200 — 116.6 KiB — 91 ms — h3https://cdn.hackaday.io/images/resize/24x24/7362731483128248235.jpgcdn.hackaday.io/images/resize/24x24... https://cdn.hackaday.io/images/resize/24x24/7362731483128248235.jpg — 200 — 1.7 KiB — 26 ms — h3https://cdn.hackaday.io/images/7255311484679597966.pngcdn.hackaday.io/images/725531148467... https://cdn.hackaday.io/images/7255311484679597966.png — 200 — 81.1 KiB — 80 ms — h3https://cdn.hackaday.io/images/resize/128x128/7255311484679597966.pngcdn.hackaday.io/images/resize/128x1... https://cdn.hackaday.io/images/resize/128x128/7255311484679597966.png — 200 — 15.7 KiB — 52 ms — h3https://cdn.hackaday.io/images/7762271593645154291.pngcdn.hackaday.io/images/776227159364... https://cdn.hackaday.io/images/7762271593645154291.png — 200 — 2.9 MiB — 267 ms — h3https://cdn.hackaday.io/images/resize/128x128/7762271593645154291.pngcdn.hackaday.io/images/resize/128x1... https://cdn.hackaday.io/images/resize/128x128/7762271593645154291.png — 200 — 24.2 KiB — 58 ms — h3https://cdn.hackaday.io/images/3683671525888533541.jpgcdn.hackaday.io/images/368367152588... https://cdn.hackaday.io/images/3683671525888533541.jpg — 200 — 209.1 KiB — 119 ms — h3https://cdn.hackaday.io/images/resize/128x128/3683671525888533541.jpgcdn.hackaday.io/images/resize/128x1... https://cdn.hackaday.io/images/resize/128x128/3683671525888533541.jpg — 200 — 8.7 KiB — 54 ms — h3https://cdn.hackaday.io/css/vendor/simplebar/simplebar.csscdn.hackaday.io/css/vendor/simpleba... https://cdn.hackaday.io/css/vendor/simplebar/simplebar.css — 200 — 906 B — 49 ms — h3https://unpkg.com/@lottiefiles/lottie-player@2.0.12/dist/lottie-player.jsunpkg.com/@lottiefiles/lottie-playe... https://unpkg.com/@lottiefiles/lottie-player@2.0.12/dist/lottie-player.js — 200 — 96.1 KiB — 68 ms — h3https://cdn.hackaday.io/images/original//5579751761859446080.jpgcdn.hackaday.io/images/original//55... https://cdn.hackaday.io/images/original//5579751761859446080.jpg — 200 — 529.2 KiB — 85 ms — h3https://web.cmp.usercentrics.eu/ui/loader.jsweb.cmp.usercentrics.eu/ui/loader.j... https://web.cmp.usercentrics.eu/ui/loader.js — 200 — 15.6 KiB — 60 ms — h2https://web.cmp.usercentrics.eu/ui/v/3.117.0/WebSdk.lib.4c6726a9.jsweb.cmp.usercentrics.eu/ui/v/3.117.... https://web.cmp.usercentrics.eu/ui/v/3.117.0/WebSdk.lib.4c6726a9.js — 200 — 56.2 KiB — 29 ms — h2https://v1.api.service.cmp.usercentrics.eu/latest/core/A3Zwa9HiUmX1XMv1.api.service.cmp.usercentrics.eu/... https://v1.api.service.cmp.usercentrics.eu/latest/core/A3Zwa9HiUmX1XM — 200 — 625 B — 51 ms — h2https://hackaday.io/favicon.ico/favicon.ico https://hackaday.io/favicon.ico — 200 — 31.4 KiB — 24 ms — h2https://app.usercentrics.eu/session/1px.png?settingsId=A3Zwa9HiUmX1XMapp.usercentrics.eu/session/1px.png... 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h3https://hackaday.io/api/location/hackerspaces/api/location/hackerspaces https://hackaday.io/api/location/hackerspaces — 200 — 129.8 KiB — 1.0 s — h2https://consent-api.service.consent.usercentrics.eu/consent/uw/3consent-api.service.consent.usercen... https://consent-api.service.consent.usercentrics.eu/consent/uw/3 — 201 — 74 B — 164 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
83% of JavaScript execution is third-party
First-party Third-party 626ms · 381KB · $8/mo
cdn.hackaday.io
Other
Costly
Execution 239ms
Transfer 85 KB
Unused 62%
Monthly Cost $3/mo
Unattributable
Other
Optional
Execution 139ms
Transfer 0 KB
Monthly Cost $2/mo
maps.googleapis.com
Other
Optional
Execution 95ms
Transfer 83 KB
Unused 58%
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 94ms
Transfer 156 KB
Unused 39%
Monthly Cost $1/mo
web.cmp.usercentrics.eu
Other
Optional
Execution 60ms
Transfer 56 KB
Unused 63%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • cdn.hackaday.io adds 239ms and costs ~$3/month

83% 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

cdn.hackaday.io takes 239ms 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

62% of cdn.hackaday.io'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

58% of maps.googleapis.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

63% of web.cmp.usercentrics.eu'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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