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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
93
GRADE
A
FIX
0
REVIEW
3
PASS
10
INFO
2

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

Mobile Desktop
98
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
91
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.

482 ms

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

1.07 s

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

5 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.

965 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

1.27 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
10 PASS 3 REVIEW
B
Image Optimization
6 images, 0 KB saveable
REVIEW
6 images, 0 KB saveable
Warning::
https://design.codeberg.org/logo-kit/icon_inverted... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
6 images 220 KB
0 oversized -0 KB
6 legacy format
1 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

C
JS Bundles
Action
2 scripts, 277 KB unused
REVIEW
2 scripts, 277 KB unused
Warning::
https://codeberg.org/assets/js/index.js?v=15.0.0-7...: 253 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://codeberg.org/assets/js/webcomponents.js?v=...: 24 KB unused (89%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 277 KB
277 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://codeberg.org/assets/js/index.js?v=15.0.0-73-390b9f2d~gitea-1.22.0348 KB253 KB (73%)✓1st
https://codeberg.org/assets/js/webcomponents.js?v=15.0.0-73-390b9f2d~gitea-1.22.027 KB24 KB (89%)✓1st

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
HTTP Caching
max-age=0, private, must-revalidate, no-transform
REVIEW
max-age=0, private, must-revalidate, no-transform
Info::
Cache-Control header is set
Got: max-age=0, private, must-revalidate, no-transform
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, no-transform

DirectiveValueMeaning
max-age0Cache for 0 seconds
private—Only browser cache, not CDN/proxy
must-revalidate—Must recheck with server after expiry
no-transform—
A+
Page Weight Budget
702 KB transferred, 15 requests
PASS
702 KB transferred, 15 requests
Info::
Page weighs 1.9 MB (702 KB transferred)
Info::
15 HTTP requests
Info::
Estimated 0.14 g CO2 per page load
702 KB / 2.4 MB budget
702 KB transferred
15 requests
0.14 g CO2 per page load
JavaScript 375.6 KiB 54%
Images 219.6 KiB 31%
CSS 70.1 KiB 10%
HTML 32.2 KiB 5%
Other 3.6 KiB 1%
Other 446 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
1% third-party, 0 ms blocking
PASS
1% third-party, 0 ms blocking
Info::
Third-party code accounts for 1% of page weight (6.1 KiB of 701.6 KiB)
Info::
Third-party blocking time is low (0 ms)
99%
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+
JS Execution Cost
249ms total JS execution
PASS
249ms total JS execution
Info::
https://codeberg.org/: 87ms CPU time
Info::
https://codeberg.org/assets/js/index.js?v=15.0.0-7...: 87ms CPU time
Info::
Unattributable: 75ms CPU time
Info::
Third-party scripts: 75ms (30% of total)

Main Thread Breakdown

Other 36% Script Evaluation 24% Style & Layout 17% Script Parsing & Compilation 14% Parse HTML & CSS 6% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://codeberg.org/87ms2ms1ms1st
https://codeberg.org/assets/js/index.js?v=15.0.0-73-390b9f2d~gitea-1.22.087ms52ms34ms1st
Unattributable75ms2ms0ms3rd
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
A+
Page Weight Inventory
15 resources · 702 KB · 277 KB savings available
PASS
15 resources · 702 KB · 277 KB savings available
Info::
Within 1MB page-weight target
Got: 702 KB
Info::
~277 KB of savings available
Info::
1 third-party resources (1% of weight)
Info::
1 resources over 200KB
15 resources · 701.6 KiB · 1 third-party Within 1MB page-weight target
JavaScript 54% · 375.6 KiB
Image 32% · 223.2 KiB
CSS 10% · 70.1 KiB
Document 5% · 32.2 KiB
Other 0% · 446 B

~277.0 KiB of savings available

Remove unused JavaScript: 277.0 KiB
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: netcup GmbH

Network Waterfall
15 requests over 2113ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 482 ms LCP 1.1 shttps://codeberg.org// https://codeberg.org/ — 200 — 32.2 KiB — 631 ms — h2https://codeberg.org/assets/js/webcomponents.js?v=15.0.0-73-390b9f2d~gitea-1.22.0/assets/js/webcomponents.js?v=15.0.... https://codeberg.org/assets/js/webcomponents.js?v=15.0.0-73-390b9f2d~gitea-1.22.0 — 200 — 27.3 KiB — 461 ms — h2https://codeberg.org/assets/css/index.css?v=15.0.0-73-390b9f2d~gitea-1.22.0/assets/css/index.css?v=15.0.0-73-3... https://codeberg.org/assets/css/index.css?v=15.0.0-73-390b9f2d~gitea-1.22.0 — 200 — 62.5 KiB — 455 ms — h2https://codeberg.org/assets/css/theme-codeberg-auto.css?v=15.0.0-73-390b9f2d~gitea-1.22.0/assets/css/theme-codeberg-auto.css... https://codeberg.org/assets/css/theme-codeberg-auto.css?v=15.0.0-73-390b9f2d~gitea-1.22.0 — 200 — 5.6 KiB — 293 ms — h2https://codeberg.org/manifest.json/manifest.json https://codeberg.org/manifest.json — 200 — 446 B — 321 ms — h3https://codeberg.org/assets/css/homepage.css?v=15.0.0-73-390b9f2d~gitea-1.22.0/assets/css/homepage.css?v=15.0.0-7... https://codeberg.org/assets/css/homepage.css?v=15.0.0-73-390b9f2d~gitea-1.22.0 — 200 — 2.0 KiB — 314 ms — h2https://codeberg.org/assets/img/logo-250px.png/assets/img/logo-250px.png https://codeberg.org/assets/img/logo-250px.png — 200 — 13.7 KiB — 316 ms — h2https://codeberg.org/assets/img/logo-250px-dark.png/assets/img/logo-250px-dark.png https://codeberg.org/assets/img/logo-250px-dark.png — 200 — 10.6 KiB — 160 ms — h3https://codeberg.org/assets/js/index.js?v=15.0.0-73-390b9f2d~gitea-1.22.0/assets/js/index.js?v=15.0.0-73-390... https://codeberg.org/assets/js/index.js?v=15.0.0-73-390b9f2d~gitea-1.22.0 — 200 — 348.3 KiB — 722 ms — h3https://codeberg.org/assets/img/codeberg-landingpage-intro-background.jpg/assets/img/codeberg-landingpage-in... https://codeberg.org/assets/img/codeberg-landingpage-intro-background.jpg — 200 — 61.5 KiB — 487 ms — h3https://codeberg.org/assets/img/codeberg-landingpage-stats-background.png/assets/img/codeberg-landingpage-st... https://codeberg.org/assets/img/codeberg-landingpage-stats-background.png — 200 — 126.1 KiB — 585 ms — h3https://design.codeberg.org/logo-kit/icon_inverted.svgdesign.codeberg.org/logo-kit/icon_i... https://design.codeberg.org/logo-kit/icon_inverted.svg — 200 — 6.1 KiB — 492 ms — h2https://codeberg.org/assets/img/svg/forgejo-wordmark-mono.svg/assets/img/svg/forgejo-wordmark-mo... https://codeberg.org/assets/img/svg/forgejo-wordmark-mono.svg — 200 — 1.7 KiB — 193 ms — h3https://codeberg.org/assets/img/favicon.png/assets/img/favicon.png https://codeberg.org/assets/img/favicon.png — 200 — 2.3 KiB — 163 ms — h3https://codeberg.org/assets/img/favicon.svg/assets/img/favicon.svg https://codeberg.org/assets/img/favicon.svg — 200 — 1.3 KiB — 160 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
30% of JavaScript execution is third-party
First-party Third-party 75ms · 0KB · €1/mo
Unattributable
Other
Optional
Execution 75ms
Transfer 0 KB
Monthly Cost €1/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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