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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
93
GRADE
A
FIX
1
REVIEW
1
PASS
13
INFO
2

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

Mobile Desktop
97
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

1.20 s

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

2.11 s

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

159 ms

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

0.012

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

1.20 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.

2.20 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
17
13 PASS 1 REVIEW 1 FIX
D
JS Execution Cost
Action
3263ms total JS execution
FIX
3263ms total JS execution
Warning::
https://beavercheck.com/: 1692ms CPU time
Warning::
https://beavercheck.com/static/js/alpine.min.js?v=...: 556ms CPU time
Warning::
Unattributable: 485ms CPU time
Warning::
https://beavercheck.com/static/js/components.js?v=...: 442ms CPU time
Info::
https://beavercheck.com/static/js/htmx.min.js?v=8a...: 89ms CPU time
Info::
Third-party scripts: 485ms (15% of total)

Main Thread Breakdown

Style & Layout 32% Other 29% Rendering 20% Script Evaluation 15%
ScriptTotalScriptingParse/CompileParty
https://beavercheck.com/1692ms36ms3ms1st
https://beavercheck.com/static/js/alpine.min.js?v=8a16499556ms312ms13ms1st
Unattributable485ms11ms0ms3rd
https://beavercheck.com/static/js/components.js?v=8a16499442ms66ms3ms1st
https://beavercheck.com/static/js/htmx.min.js?v=8a1649989ms76ms11ms1st
B
Image Optimization
7 images, 0 KB saveable
REVIEW
7 images, 0 KB saveable
Info::
All images are well-optimized
7 images 5 KB
0 oversized -0 KB
7 legacy format
0 missing dimensions CLS risk
A+
Page Weight Budget
191 KB transferred, 22 requests
PASS
191 KB transferred, 22 requests
Info::
Page weighs 517 KB (191 KB transferred)
Info::
22 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
191 KB / 2.4 MB budget
191 KB transferred
22 requests
0.04 g CO2 per page load
Fonts 95.4 KiB 50%
JavaScript 53.6 KiB 28%
HTML 18.3 KiB 10%
CSS 17.3 KiB 9%
Images 5.3 KiB 3%
Other 827 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
No third-party resources
PASS
No third-party resources
Info::
No third-party resources detected
No third-party resources detected — all resources are first-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
4 fonts (95 KB)
PASS
4 fonts (95 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

95 KB total

Render-blocking

0

of 4

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 FCP 1.2 s LCP 2.1 shttps://beavercheck.com/static/fonts/inter-400.woff2inter-400.woff2 https://beavercheck.com/static/fonts/inter-400.woff2 — 23.3 KiB — 15 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-600.woff2inter-600.woff2 https://beavercheck.com/static/fonts/inter-600.woff2 — 24.1 KiB — 21 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-500.woff2inter-500.woff2 https://beavercheck.com/static/fonts/inter-500.woff2 — 23.9 KiB — 15 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-700.woff2inter-700.woff2 https://beavercheck.com/static/fonts/inter-700.woff2 — 24.0 KiB — 17 ms — font-display: swap
inter-400.woff2 woff2 swap
Size 23 KB
Load time 15 ms
Start 218 ms
Risk FOUT — text flashes from fallback to web font
inter-600.woff2 woff2 swap
Size 24 KB
Load time 21 ms
Start 219 ms
Risk FOUT — text flashes from fallback to web font
inter-500.woff2 woff2 swap
Size 24 KB
Load time 15 ms
Start 374 ms
Risk FOUT — text flashes from fallback to web font
inter-700.woff2 woff2 swap
Size 24 KB
Load time 17 ms
Start 375 ms
Risk FOUT — text flashes from fallback to web font
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)
A+
JS Bundles
6 scripts, 0 KB unused
PASS
6 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://beavercheck.com/static/js/htmx.min.js?v=8a1649919 KB—✓1st
https://beavercheck.com/static/js/htmx-config.js?v=8a164990 KB—✓1st
https://beavercheck.com/static/js/components.js?v=8a164996 KB—✓1st
https://beavercheck.com/static/js/alpine.min.js?v=8a1649922 KB—✓1st
https://beavercheck.com/static/js/app.js?v=8a164994 KB—✓1st
https://beavercheck.com/static/js/actions.js?v=8a164993 KB—✓1st
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
22 resources · 191 KB · 0 KB savings available
PASS
22 resources · 191 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 191 KB
22 resources · 190.7 KiB · 0 third-party Within 1MB page-weight target
Font 50% · 95.4 KiB
JavaScript 28% · 53.6 KiB
Document 10% · 18.3 KiB
CSS 9% · 17.3 KiB
Image 3% · 5.3 KiB
Other 0% · 827 B
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: OVHcloud

A
HTTP Caching
max-age=60 (1 minute)
PASS
max-age=60 (1 minute)
Info::
Cache-Control header is set
Got: public, max-age=60
Info::
Effective TTL: 1 minute (max-age=60)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=60

DirectiveValueMeaning
public—Any cache may store this response
max-age60Cache for 1 minute
Effective TTL: 60 seconds
Network Waterfall
22 requests over 481ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.2 s LCP 2.1 shttps://beavercheck.com// https://beavercheck.com/ — 200 — 18.3 KiB — 81 ms — h2https://beavercheck.com/static/css/output.css?v=8a16499/static/css/output.css?v=8a16499 https://beavercheck.com/static/css/output.css?v=8a16499 — 200 — 17.3 KiB — 38 ms — h2https://beavercheck.com/static/js/htmx.min.js?v=8a16499/static/js/htmx.min.js?v=8a16499 https://beavercheck.com/static/js/htmx.min.js?v=8a16499 — 200 — 18.6 KiB — 28 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 2.0 KiB — 22 ms — h2https://beavercheck.com/static/img/flags/br.svg/static/img/flags/br.svg https://beavercheck.com/static/img/flags/br.svg — 200 — 1.3 KiB — 27 ms — h2https://beavercheck.com/static/img/flags/nl.svg/static/img/flags/nl.svg https://beavercheck.com/static/img/flags/nl.svg — 200 — 329 B — 35 ms — h2https://beavercheck.com/static/js/htmx-config.js?v=8a16499/static/js/htmx-config.js?v=8a16499 https://beavercheck.com/static/js/htmx-config.js?v=8a16499 — 200 — 346 B — 37 ms — h2https://beavercheck.com/static/js/components.js?v=8a16499/static/js/components.js?v=8a16499 https://beavercheck.com/static/js/components.js?v=8a16499 — 200 — 5.7 KiB — 40 ms — h2https://beavercheck.com/static/js/alpine.min.js?v=8a16499/static/js/alpine.min.js?v=8a16499 https://beavercheck.com/static/js/alpine.min.js?v=8a16499 — 200 — 22.0 KiB — 41 ms — h2https://beavercheck.com/static/js/app.js?v=8a16499/static/js/app.js?v=8a16499 https://beavercheck.com/static/js/app.js?v=8a16499 — 200 — 4.4 KiB — 42 ms — h2https://beavercheck.com/static/js/actions.js?v=8a16499/static/js/actions.js?v=8a16499 https://beavercheck.com/static/js/actions.js?v=8a16499 — 200 — 2.6 KiB — 43 ms — h2https://beavercheck.com/static/img/flags/sg.svg/static/img/flags/sg.svg https://beavercheck.com/static/img/flags/sg.svg — 200 — 479 B — 45 ms — h2https://beavercheck.com/static/img/flags/es.svg/static/img/flags/es.svg https://beavercheck.com/static/img/flags/es.svg — 200 — 326 B — 49 ms — h2https://beavercheck.com/static/img/flags/us.svg/static/img/flags/us.svg https://beavercheck.com/static/img/flags/us.svg — 200 — 521 B — 39 ms — h2https://beavercheck.com/static/fonts/inter-400.woff2/static/fonts/inter-400.woff2 https://beavercheck.com/static/fonts/inter-400.woff2 — 200 — 23.3 KiB — 15 ms — h2https://beavercheck.com/static/fonts/inter-600.woff2/static/fonts/inter-600.woff2 https://beavercheck.com/static/fonts/inter-600.woff2 — 200 — 24.1 KiB — 21 ms — h2https://beavercheck.com/static/fonts/inter-500.woff2/static/fonts/inter-500.woff2 https://beavercheck.com/static/fonts/inter-500.woff2 — 200 — 23.9 KiB — 15 ms — h2https://beavercheck.com/static/fonts/inter-700.woff2/static/fonts/inter-700.woff2 https://beavercheck.com/static/fonts/inter-700.woff2 — 200 — 24.0 KiB — 17 ms — h2https://beavercheck.com/static/img/favicon-placeholder.svg/static/img/favicon-placeholder.svg https://beavercheck.com/static/img/favicon-placeholder.svg — 200 — 369 B — 15 ms — h2https://beavercheck.com/static/site.webmanifest/static/site.webmanifest https://beavercheck.com/static/site.webmanifest — 200 — 827 B — 40 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 0 B — 5 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 0 B — 3 ms — h2
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 485ms · 0KB · €7/mo
Unattributable
Other
Costly
Execution 485ms
Transfer 0 KB
Monthly Cost €7/mo

These scripts may cost more than they're worth

  • Unattributable adds 485ms and costs ~€7/month

Unattributable takes 485ms 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

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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