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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
94
GRADE
A
FIX
0
REVIEW
2
PASS
13
INFO
2

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

Mobile Desktop
96
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.

1.19 s

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

1.19 s

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

195 ms

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

0.002

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

3.26 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.

2.17 s

Page Load Progression

549 ms
1.1 s
1.6 s
2.2 s
2.7 s
3.3 s
3.8 s
4.4 s
Checks
17
13 PASS 2 REVIEW
B
Image Optimization
6 images, 0 KB saveable
REVIEW
6 images, 0 KB saveable
Info::
All images are well-optimized
6 images 5 KB
0 oversized -0 KB
6 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1537ms total JS execution
REVIEW
1537ms total JS execution
Warning::
https://beavercheck.com/: 646ms CPU time
Warning::
Unattributable: 308ms CPU time
Info::
https://beavercheck.com/static/js/alpine.min.js?v=...: 244ms CPU time
Info::
https://beavercheck.com/static/js/components.js?v=...: 235ms CPU time
Info::
https://beavercheck.com/static/js/htmx.min.js?v=71...: 105ms CPU time
Info::
Third-party scripts: 308ms (20% of total)

Main Thread Breakdown

Other 31% Style & Layout 22% Rendering 21% Script Evaluation 21%
ScriptTotalScriptingParse/CompileParty
https://beavercheck.com/646ms10ms1ms1st
Unattributable308ms7ms0ms3rd
https://beavercheck.com/static/js/alpine.min.js?v=71c1a9e244ms217ms8ms1st
https://beavercheck.com/static/js/components.js?v=71c1a9e235ms43ms3ms1st
https://beavercheck.com/static/js/htmx.min.js?v=71c1a9e105ms42ms7ms1st
A+
Page Weight Budget
188 KB transferred, 21 requests
PASS
188 KB transferred, 21 requests
Info::
Page weighs 493 KB (188 KB transferred)
Info::
21 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
188 KB / 2.4 MB budget
188 KB transferred
21 requests
0.04 g CO2 per page load
Fonts 95.4 KiB 51%
JavaScript 52.8 KiB 28%
HTML 17.1 KiB 9%
CSS 17.0 KiB 9%
Images 4.9 KiB 3%
Other 828 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 1.2 shttps://beavercheck.com/static/fonts/inter-400.woff2inter-400.woff2 https://beavercheck.com/static/fonts/inter-400.woff2 — 23.3 KiB — 264 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-600.woff2inter-600.woff2 https://beavercheck.com/static/fonts/inter-600.woff2 — 24.1 KiB — 266 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-500.woff2inter-500.woff2 https://beavercheck.com/static/fonts/inter-500.woff2 — 23.9 KiB — 267 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-700.woff2inter-700.woff2 https://beavercheck.com/static/fonts/inter-700.woff2 — 24.0 KiB — 269 ms — font-display: swap
inter-400.woff2 woff2 swap
Size 23 KB
Load time 264 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
inter-600.woff2 woff2 swap
Size 24 KB
Load time 266 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
inter-500.woff2 woff2 swap
Size 24 KB
Load time 267 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
inter-700.woff2 woff2 swap
Size 24 KB
Load time 269 ms
Start 1.9 s
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=71c1a9e19 KB—✓1st
https://beavercheck.com/static/js/htmx-config.js?v=71c1a9e0 KB—✓1st
https://beavercheck.com/static/js/components.js?v=71c1a9e6 KB—✓1st
https://beavercheck.com/static/js/alpine.min.js?v=71c1a9e22 KB—✓1st
https://beavercheck.com/static/js/app.js?v=71c1a9e4 KB—✓1st
https://beavercheck.com/static/js/actions.js?v=71c1a9e2 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
21 resources · 188 KB · 0 KB savings available
PASS
21 resources · 188 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 188 KB
21 resources · 188.0 KiB · 0 third-party Within 1MB page-weight target
Font 51% · 95.4 KiB
JavaScript 28% · 52.8 KiB
Document 9% · 17.1 KiB
CSS 9% · 17.0 KiB
Image 3% · 4.9 KiB
Other 0% · 828 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
21 requests over 2212ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.2 s LCP 1.2 shttps://beavercheck.com// https://beavercheck.com/ — 200 — 17.1 KiB — 1.8 s — h2https://beavercheck.com/static/css/output.css?v=71c1a9e/static/css/output.css?v=71c1a9e https://beavercheck.com/static/css/output.css?v=71c1a9e — 200 — 17.0 KiB — 177 ms — h2https://beavercheck.com/static/js/htmx.min.js?v=71c1a9e/static/js/htmx.min.js?v=71c1a9e https://beavercheck.com/static/js/htmx.min.js?v=71c1a9e — 200 — 18.6 KiB — 336 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 2.0 KiB — 176 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 — 337 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 — 332 ms — h2https://beavercheck.com/static/js/htmx-config.js?v=71c1a9e/static/js/htmx-config.js?v=71c1a9e https://beavercheck.com/static/js/htmx-config.js?v=71c1a9e — 200 — 346 B — 333 ms — h2https://beavercheck.com/static/js/components.js?v=71c1a9e/static/js/components.js?v=71c1a9e https://beavercheck.com/static/js/components.js?v=71c1a9e — 200 — 5.7 KiB — 330 ms — h2https://beavercheck.com/static/js/alpine.min.js?v=71c1a9e/static/js/alpine.min.js?v=71c1a9e https://beavercheck.com/static/js/alpine.min.js?v=71c1a9e — 200 — 22.0 KiB — 333 ms — h2https://beavercheck.com/static/js/app.js?v=71c1a9e/static/js/app.js?v=71c1a9e https://beavercheck.com/static/js/app.js?v=71c1a9e — 200 — 4.4 KiB — 333 ms — h2https://beavercheck.com/static/js/actions.js?v=71c1a9e/static/js/actions.js?v=71c1a9e https://beavercheck.com/static/js/actions.js?v=71c1a9e — 200 — 1.8 KiB — 334 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 — 336 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 — 337 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 — 338 ms — h2https://beavercheck.com/static/site.webmanifest/static/site.webmanifest https://beavercheck.com/static/site.webmanifest — 200 — 828 B — 502 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 — 264 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 — 266 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 — 267 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 — 269 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 0 B — 2 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 0 B — 2 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
20% of JavaScript execution is third-party
First-party Third-party 308ms · 0KB · €4/mo
Unattributable
Other
Costly
Execution 308ms
Transfer 0 KB
Monthly Cost €4/mo

These scripts may cost more than they're worth

  • Unattributable adds 308ms and costs ~€4/month

Unattributable takes 308ms 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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