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Performance

· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
1
REVIEW
7
PASS
11
INFO
4

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

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

286 ms

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

326 ms

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.

0.000

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

380 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.

326 ms

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
23
11 PASS 7 REVIEW 1 FIX
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
Third-Party Impact
45% third-party, 0 ms blocking
REVIEW
45% third-party, 0 ms blocking
Info::
Third-party code accounts for 45% of page weight (123.2 KiB of 271.0 KiB)
Info::
Third-party blocking time is low (0 ms)
55%
45%
First-party Third-party
B
JS Bundles
4 scripts, 51 KB unused
REVIEW
4 scripts, 51 KB unused
Warning::
https://matomo.pluralog.de/js/container_auoXNaG1.j...: 51 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cividata.org/inc/modal.js?v=1790166873: unminified — 5 KB could be saved
Info::
Total unused JavaScript: 51 KB
51 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://matomo.pluralog.de/js/container_auoXNaG1.js123 KB51 KB (42%)✓3rd
https://cividata.org/inc/vendor/bootstrap.bundle.min.js23 KB—✓1st
https://cividata.org/inc/script.js?v=17901668734 KB—✓1st
https://cividata.org/inc/modal.js?v=179016687315 KB—✗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

B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
C
Document Compression
Action
Document response served uncompressed
REVIEW
Document response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
271 KB transferred, 15 requests
PASS
271 KB transferred, 15 requests
Info::
Page weighs 663 KB (271 KB transferred)
Info::
15 HTTP requests
Info::
Estimated 0.06 g CO2 per page load
271 KB / 2.4 MB budget
271 KB transferred
15 requests
0.06 g CO2 per page load
JavaScript 165.7 KiB 61%
CSS 37.8 KiB 14%
Fonts 35.3 KiB 13%
Other 15.4 KiB 6%
HTML 11.1 KiB 4%
Images 5.6 KiB 2%
Other 57 B 0%
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+
Image Optimization
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 6 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
50ms total JS execution
PASS
50ms total JS execution
Info::
https://cividata.org/en/: 50ms CPU time

Main Thread Breakdown

Other 30% Style & Layout 27% Script Evaluation 22% Script Parsing & Compilation 8% Rendering 7% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
https://cividata.org/en/50ms3ms1ms1st
A+
Font Loading
3 fonts (35 KB)
PASS
3 fonts (35 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

35 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 FCP 286 ms LCP 326 mshttps://cividata.org/inc/yrsa-v3-latin-regular.woff2yrsa-v3-latin-regular.w... https://cividata.org/inc/yrsa-v3-latin-regular.woff2 — 25.7 KiB — 85 ms — font-display: swaphttps://cividata.org/inc/webfonts/fa-solid-900-subset.wofffa-solid-900-subset.woff https://cividata.org/inc/webfonts/fa-solid-900-subset.woff — 5.8 KiB — 41 ms — font-display: swaphttps://cividata.org/inc/webfonts/fa-brands-400-subset.wofffa-brands-400-subset.woff https://cividata.org/inc/webfonts/fa-brands-400-subset.woff — 3.7 KiB — 41 ms — font-display: swap
yrsa-v3-latin-regular.w... woff2 swap
Size 26 KB
Load time 85 ms
Start 224 ms
Risk FOUT — text flashes from fallback to web font
fa-solid-900-subset.woff woff swap
Size 6 KB
Load time 41 ms
Start 382 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
fa-brands-400-subset.woff woff swap
Size 4 KB
Load time 41 ms
Start 400 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
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 ~3 KB and ~6 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+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Server Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A
Page Weight Inventory
15 resources · 271 KB · 51 KB savings available
PASS
15 resources · 271 KB · 51 KB savings available
Info::
Within 1MB page-weight target
Got: 271 KB
Info::
~51 KB of savings available
Warning::
2 third-party resources (45% of weight)
15 resources · 271.0 KiB · 2 third-party Within 1MB page-weight target
JavaScript 61% · 165.7 KiB
CSS 14% · 37.8 KiB
Font 13% · 35.3 KiB
Image 8% · 20.8 KiB
Document 4% · 11.4 KiB
Other 0% · 57 B

~51.4 KiB of savings available

Remove unused JavaScript: 51.4 KiB
Asset Compression
No text asset hosts to measure
INFO
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall
15 requests over 937ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 286 ms LCP 326 mshttps://cividata.org// https://cividata.org/ — 302 — 255 B — 122 ms — h2https://cividata.org/en//en/ https://cividata.org/en/ — 200 — 11.1 KiB — 93 ms — h2https://cividata.org/inc/yrsa-v3-latin-regular.woff2/inc/yrsa-v3-latin-regular.woff2 https://cividata.org/inc/yrsa-v3-latin-regular.woff2 — 200 — 25.7 KiB — 85 ms — h2https://cividata.org/inc/vendor/bootstrap.min.css/inc/vendor/bootstrap.min.css https://cividata.org/inc/vendor/bootstrap.min.css — 200 — 30.6 KiB — 122 ms — h2https://cividata.org/inc/style.css?v=1790166873/inc/style.css?v=1790166873 https://cividata.org/inc/style.css?v=1790166873 — 200 — 6.1 KiB — 47 ms — h2https://cividata.org/inc/vendor/fontawesome.min.css?v=1790166873/inc/vendor/fontawesome.min.css?v=1... https://cividata.org/inc/vendor/fontawesome.min.css?v=1790166873 — 200 — 1.1 KiB — 43 ms — h2https://cividata.org/inc/vendor/bootstrap.bundle.min.js/inc/vendor/bootstrap.bundle.min.js https://cividata.org/inc/vendor/bootstrap.bundle.min.js — 200 — 23.3 KiB — 82 ms — h2https://cividata.org/inc/script.js?v=1790166873/inc/script.js?v=1790166873 https://cividata.org/inc/script.js?v=1790166873 — 200 — 4.2 KiB — 44 ms — h2https://cividata.org/inc/modal.js?v=1790166873/inc/modal.js?v=1790166873 https://cividata.org/inc/modal.js?v=1790166873 — 200 — 14.9 KiB — 119 ms — h2https://cividata.org/inc/webfonts/fa-solid-900-subset.woff/inc/webfonts/fa-solid-900-subset.w... https://cividata.org/inc/webfonts/fa-solid-900-subset.woff — 200 — 5.8 KiB — 41 ms — h2https://matomo.pluralog.de/js/container_auoXNaG1.jsmatomo.pluralog.de/js/container_auo... https://matomo.pluralog.de/js/container_auoXNaG1.js — 200 — 123.2 KiB — 234 ms — h2https://cividata.org/inc/webfonts/fa-brands-400-subset.woff/inc/webfonts/fa-brands-400-subset.... https://cividata.org/inc/webfonts/fa-brands-400-subset.woff — 200 — 3.7 KiB — 41 ms — h2https://cividata.org/inc/wikidatafooter.webp/inc/wikidatafooter.webp https://cividata.org/inc/wikidatafooter.webp — 200 — 5.6 KiB — 41 ms — h2https://matomo.pluralog.de/matomo.php?action_name=The%20largest%20Charities%20and%20Nonprofit%20Organizations%20Worldwide&idsite=4&rec=1&r=350958&h=9&m=49&s=19&url=https%3A%2F%2Fcividata.org%2Fen%2F&_id=d891960d1348ea53&_idn=1&send_image=0&_refts=0&pv_id=QwdQHP&pf_net=0&pf_srv=91&pf_tfr=2&pf_dm1=164&uadata=%7B%22formFactors%22%3A%5B%22Desktop%22%5D%2C%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22153.0.8010.52%22%7D%2C%7B%22brand%22%3A%22Not_A%20Brand%22%2C%22version%22%3A%228.0.0.0%22%7D%5D%2C%22mobile%22%3Afalse%2C%22model%22%3A%22%22%2C%22platform%22%3A%22macOS%22%2C%22platformVersion%22%3A%2210.15.7%22%7D&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=800x600matomo.pluralog.de/matomo.php?actio... https://matomo.pluralog.de/matomo.php?action_name=The%20largest%20Charities%20and%20Nonprofit%20Organizations%20Worldwide&idsite=4&rec=1&r=350958&h=9&m=49&s=19&url=https%3A%2F%2Fcividata.org%2Fen%2F&_id=d891960d1348ea53&_idn=1&send_image=0&_refts=0&pv_id=QwdQHP&pf_net=0&pf_srv=91&pf_tfr=2&pf_dm1=164&uadata=%7B%22formFactors%22%3A%5B%22Desktop%22%5D%2C%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22153.0.8010.52%22%7D%2C%7B%22brand%22%3A%22Not_A%20Brand%22%2C%22version%22%3A%228.0.0.0%22%7D%5D%2C%22mobile%22%3Afalse%2C%22model%22%3A%22%22%2C%22platform%22%3A%22macOS%22%2C%22platformVersion%22%3A%2210.15.7%22%7D&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=800x600 — 204 — 57 B — 295 ms — h2https://cividata.org/favicon.ico/favicon.ico https://cividata.org/favicon.ico — 200 — 15.2 KiB — 41 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-08-26 — 2026-09-22)

LCP (p75)

3290 ms

58% good

INP (p75)

140 ms

87% good

CLS (p75)

0.010

81% good

FCP (p75)

3198 ms

TTFB (p75)

2625 ms

Image Optimization
1 images, 0 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

1

Total Size

0 KB

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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