Skip to content
https://freedesktop.org

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
92
GRADE
A
FIX
2
REVIEW
2
PASS
9
INFO
1

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

Mobile Desktop
74
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.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
83
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.

2.33 s

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

2.37 s

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

0 ms

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

0.013

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

2.33 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.

2.37 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
14
9 PASS 2 REVIEW 2 FIX
D
Third-Party Impact
Action
99% third-party, 0 ms blocking
FIX
99% third-party, 0 ms blocking
Warning::
Third-party code accounts for 99% of page weight (37.8 KiB of 38.1 KiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
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.

No Cache-Control header

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

B
Image Optimization
6 images, 0 KB saveable
REVIEW
6 images, 0 KB saveable
Warning::
https://www.freedesktop.org/wiki/logo.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
6 images 20 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
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
38 KB transferred, 19 requests
PASS
38 KB transferred, 19 requests
Info::
Page weighs 47 KB (38 KB transferred)
Info::
19 HTTP requests
Info::
Estimated 0.01 g CO2 per page load
38 KB / 2.4 MB budget
38 KB transferred
19 requests
0.01 g CO2 per page load
Images 19.7 KiB 52%
HTML 8.0 KiB 21%
CSS 5.9 KiB 15%
Other 4.5 KiB 12%
0 2.4 MB 4.9 MB
Under budget
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
No JS execution data
PASS
No JS execution data
Info::
No significant JS execution detected

Main Thread Breakdown

Other 58% Style & Layout 31% Rendering 5% Script Evaluation 4%
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+
JS Bundles
No JavaScript
PASS
No JavaScript
Info::
No JavaScript bundles
No JavaScript files loaded.
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
19 resources · 38 KB · 0 KB savings available
PASS
19 resources · 38 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 38 KB
Warning::
18 third-party resources (99% of weight)
19 resources · 38.1 KiB · 18 third-party Within 1MB page-weight target
Image 56% · 21.3 KiB
Document 26% · 10.0 KiB
CSS 15% · 5.9 KiB
Other 2% · 920 B
Network Waterfall
19 requests over 2409ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 2.3 s LCP 2.4 shttps://freedesktop.org// https://freedesktop.org/ — 302 — 306 B — 502 ms — http/1.1https://www.freedesktop.org/wiki/www.freedesktop.org/wiki/ https://www.freedesktop.org/wiki/ — 418 — 4.3 KiB — 520 ms — http/1.1https://www.freedesktop.org/assets/css/index.csswww.freedesktop.org/assets/css/inde... https://www.freedesktop.org/assets/css/index.css — 404 — 264 B — 174 ms — http/1.1https://www.freedesktop.org/assets/css/theme-forgejo-auto.csswww.freedesktop.org/assets/css/them... https://www.freedesktop.org/assets/css/theme-forgejo-auto.css — 404 — 264 B — 346 ms — http/1.1https://www.freedesktop.org/logo.pngwww.freedesktop.org/logo.png https://www.freedesktop.org/logo.png — 200 — 8.2 KiB — 494 ms — http/1.1https://www.freedesktop.org/assets/img/logo.svgwww.freedesktop.org/assets/img/logo... https://www.freedesktop.org/assets/img/logo.svg — 404 — 266 B — 499 ms — http/1.1https://www.freedesktop.org/.well-known/.command-line-arguments/challenge/meta-refresh/verify-challenge?__goaway_bust=1776800496377&__goaway_challenge=meta-refresh&__goaway_id=9bc1a97d5cff5ab858e02d020e58ca63&__goaway_redirect=%2Fwiki%2F%3F__goaway_challenge%3Dmeta-refresh%26__goaway_id%3D9bc1a97d5cff5ab858e02d020e58ca63&__goaway_token=01b7bbdeda18fd098f823d1f6e138af8707f97f1d952b868967955c775c5895dwww.freedesktop.org/.well-known/.co... https://www.freedesktop.org/.well-known/.command-line-arguments/challenge/meta-refresh/verify-challenge?__goaway_bust=1776800496377&__goaway_challenge=meta-refresh&__goaway_id=9bc1a97d5cff5ab858e02d020e58ca63&__goaway_redirect=%2Fwiki%2F%3F__goaway_challenge%3Dmeta-refresh%26__goaway_id%3D9bc1a97d5cff5ab858e02d020e58ca63&__goaway_token=01b7bbdeda18fd098f823d1f6e138af8707f97f1d952b868967955c775c5895d — 307 — 1.1 KiB — 170 ms — http/1.1https://www.freedesktop.org/assets/img/favicon.pngwww.freedesktop.org/assets/img/favi... https://www.freedesktop.org/assets/img/favicon.png — 404 — 530 B — 168 ms — http/1.1https://www.freedesktop.org/wiki/?__goaway_challenge=meta-refresh&__goaway_id=9bc1a97d5cff5ab858e02d020e58ca63www.freedesktop.org/wiki/?__goaway_... https://www.freedesktop.org/wiki/?__goaway_challenge=meta-refresh&__goaway_id=9bc1a97d5cff5ab858e02d020e58ca63 — 200 — 3.7 KiB — 168 ms — http/1.1https://www.freedesktop.org/assets/img/favicon.svgwww.freedesktop.org/assets/img/favi... https://www.freedesktop.org/assets/img/favicon.svg — -1 — 0 B — 167 ms — https://www.freedesktop.org/wiki/style.csswww.freedesktop.org/wiki/style.css https://www.freedesktop.org/wiki/style.css — 200 — 3.0 KiB — 169 ms — http/1.1https://www.freedesktop.org/wiki/xorg.csswww.freedesktop.org/wiki/xorg.css https://www.freedesktop.org/wiki/xorg.css — 200 — 1.9 KiB — 168 ms — http/1.1https://www.freedesktop.org/wiki/local.csswww.freedesktop.org/wiki/local.css https://www.freedesktop.org/wiki/local.css — 200 — 454 B — 173 ms — http/1.1https://www.freedesktop.org/wiki/logo.pngwww.freedesktop.org/wiki/logo.png https://www.freedesktop.org/wiki/logo.png — 200 — 8.3 KiB — 170 ms — http/1.1https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gifwww.paypalobjects.com/en_US/i/btn/b... https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif — 200 — 2.0 KiB — 89 ms — h3https://www.paypal.com/en_US/i/scr/pixel.gifwww.paypal.com/en_US/i/scr/pixel.gi... https://www.paypal.com/en_US/i/scr/pixel.gif — 301 — 920 B — 235 ms — h2https://www.freedesktop.org/wiki/wikiicons/search-bg.gifwww.freedesktop.org/wiki/wikiicons/... https://www.freedesktop.org/wiki/wikiicons/search-bg.gif — 200 — 404 B — 173 ms — http/1.1https://www.paypalobjects.com/en_US/i/scr/pixel.gifwww.paypalobjects.com/en_US/i/scr/p... https://www.paypalobjects.com/en_US/i/scr/pixel.gif — 200 — 469 B — 30 ms — h3https://www.freedesktop.org/favicon.icowww.freedesktop.org/favicon.ico https://www.freedesktop.org/favicon.ico — 200 — 1.7 KiB — 171 ms — http/1.1
HTML JavaScript CSS Images Fonts XHR/Fetch Other
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback