Skip to content
https://beavercheck.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
89
GRADE
B
FIX
0
REVIEW
4
PASS
11
INFO
2

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.
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.

1.07 s

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

1.21 s

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

24 ms

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

0.037

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

1.07 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.

1.99 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
11 PASS 4 REVIEW
B
Page Weight Budget
1.4 MB transferred, 26 requests
REVIEW
1.4 MB transferred, 26 requests
Info::
Page weighs 1.7 MB (1.4 MB transferred)
Info::
26 HTTP requests
Info::
Estimated 0.30 g CO2 per page load
1.4 MB / 2.4 MB budget
1.4 MB transferred
26 requests
0.30 g CO2 per page load
Other 1019.6 KiB 70%
Images 238.5 KiB 16%
Fonts 95.4 KiB 7%
JavaScript 54.6 KiB 4%
CSS 20.4 KiB 1%
HTML 18.1 KiB 1%
Other 828 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
B
Image Optimization
10 images, 0 KB saveable
REVIEW
10 images, 0 KB saveable
Info::
All images are well-optimized
10 images 239 KB
0 oversized -0 KB
10 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1568ms total JS execution
REVIEW
1568ms total JS execution
Warning::
https://beavercheck.com/: 1054ms CPU time
Warning::
Unattributable: 321ms CPU time
Info::
https://beavercheck.com/static/js/alpine.min.js?v=...: 193ms CPU time
Info::
Third-party scripts: 321ms (20% of total)

Main Thread Breakdown

Style & Layout 40% Other 29% Script Evaluation 13% Rendering 10% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://beavercheck.com/1054ms10ms2ms1st
Unattributable321ms7ms0ms3rd
https://beavercheck.com/static/js/alpine.min.js?v=140a1ce193ms167ms5ms1st
C
Page Weight Inventory
Action
26 resources · 1.4 MB · 0 KB savings available
REVIEW
26 resources · 1.4 MB · 0 KB savings available
Warning::
Page weight 423 KB over 1MB target
Got: 1.4 MB Expected: ≤ 1 MB
Info::
1 resources over 200KB
26 resources · 1.4 MiB · 0 third-party 423.4 KiB over 1MB target
Media 70% · 1019.6 KiB
Image 16% · 238.5 KiB
Font 7% · 95.4 KiB
JavaScript 4% · 54.6 KiB
CSS 1% · 20.4 KiB
Document 1% · 18.1 KiB
Other 0% · 828 B
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 FCP 1.1 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 — 22 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-600.woff2inter-600.woff2 https://beavercheck.com/static/fonts/inter-600.woff2 — 24.1 KiB — 23 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-500.woff2inter-500.woff2 https://beavercheck.com/static/fonts/inter-500.woff2 — 23.9 KiB — 24 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-700.woff2inter-700.woff2 https://beavercheck.com/static/fonts/inter-700.woff2 — 24.0 KiB — 27 ms — font-display: swap
inter-400.woff2 woff2 swap
Size 23 KB
Load time 22 ms
Start 215 ms
Risk FOUT — text flashes from fallback to web font
inter-600.woff2 woff2 swap
Size 24 KB
Load time 23 ms
Start 215 ms
Risk FOUT — text flashes from fallback to web font
inter-500.woff2 woff2 swap
Size 24 KB
Load time 24 ms
Start 215 ms
Risk FOUT — text flashes from fallback to web font
inter-700.woff2 woff2 swap
Size 24 KB
Load time 27 ms
Start 216 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=140a1ce19 KB—✓1st
https://beavercheck.com/static/js/htmx-config.js?v=140a1ce0 KB—✓1st
https://beavercheck.com/static/js/components.js?v=140a1ce6 KB—✓1st
https://beavercheck.com/static/js/alpine.min.js?v=140a1ce22 KB—✓1st
https://beavercheck.com/static/js/app.js?v=140a1ce5 KB—✓1st
https://beavercheck.com/static/js/actions.js?v=140a1ce3 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+
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
26 requests over 341ms
INFO
0 ms 500 ms 1.0 s FCP 1.1 s LCP 1.2 shttps://beavercheck.com// https://beavercheck.com/ — 200 — 18.1 KiB — 90 ms — h2https://beavercheck.com/static/css/output.css?v=140a1ce/static/css/output.css?v=140a1ce https://beavercheck.com/static/css/output.css?v=140a1ce — 200 — 20.4 KiB — 34 ms — h2https://beavercheck.com/static/js/htmx.min.js?v=140a1ce/static/js/htmx.min.js?v=140a1ce https://beavercheck.com/static/js/htmx.min.js?v=140a1ce — 200 — 18.6 KiB — 49 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 2.0 KiB — 32 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 — 33 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 — 46 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 — 47 ms — h2https://beavercheck.com/static/js/htmx-config.js?v=140a1ce/static/js/htmx-config.js?v=140a1ce https://beavercheck.com/static/js/htmx-config.js?v=140a1ce — 200 — 368 B — 48 ms — h2https://beavercheck.com/static/js/components.js?v=140a1ce/static/js/components.js?v=140a1ce https://beavercheck.com/static/js/components.js?v=140a1ce — 200 — 6.2 KiB — 50 ms — h2https://beavercheck.com/static/js/alpine.min.js?v=140a1ce/static/js/alpine.min.js?v=140a1ce https://beavercheck.com/static/js/alpine.min.js?v=140a1ce — 200 — 22.0 KiB — 53 ms — h2https://beavercheck.com/static/js/app.js?v=140a1ce/static/js/app.js?v=140a1ce https://beavercheck.com/static/js/app.js?v=140a1ce — 200 — 4.8 KiB — 55 ms — h2https://beavercheck.com/static/js/actions.js?v=140a1ce/static/js/actions.js?v=140a1ce https://beavercheck.com/static/js/actions.js?v=140a1ce — 200 — 2.7 KiB — 58 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 — 60 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 — 62 ms — h2https://beavercheck.com/static/video/product-tour-poster.jpg/static/video/product-tour-poster.j... https://beavercheck.com/static/video/product-tour-poster.jpg — 200 — 76.4 KiB — 67 ms — h2https://beavercheck.com/static/site.webmanifest/static/site.webmanifest https://beavercheck.com/static/site.webmanifest — 200 — 828 B — 72 ms — h2https://beavercheck.com/static/video/product-tour.webm/static/video/product-tour.webm https://beavercheck.com/static/video/product-tour.webm — 206 — 1019.6 KiB — 112 ms — h2https://beavercheck.com/favicons/stelgano.com.png/favicons/stelgano.com.png https://beavercheck.com/favicons/stelgano.com.png — 200 — 5.7 KiB — 31 ms — h2https://beavercheck.com/favicons/puretechleman.ch.png/favicons/puretechleman.ch.png https://beavercheck.com/favicons/puretechleman.ch.png — 200 — 1.3 KiB — 32 ms — h2https://beavercheck.com/static/img/screenshots/result-overview-light.png/static/img/screenshots/result-over... https://beavercheck.com/static/img/screenshots/result-overview-light.png — 200 — 150.2 KiB — 41 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 — 22 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 — 23 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 — 24 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 — 27 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 0 B — 3 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 0 B — 5 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 321ms · 0KB · €4/mo
Unattributable
Other
Costly
Execution 321ms
Transfer 0 KB
Monthly Cost €4/mo

These scripts may cost more than they're worth

  • Unattributable adds 321ms and costs ~€4/month

Unattributable takes 321ms 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.

Send Feedback