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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
95
GRADE
A
FIX
0
REVIEW
2
PASS
13
INFO
2

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

Mobile Desktop
99
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.

994 ms

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

1.62 s

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

82 ms

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

0.008

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

994 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.

1.92 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 2 REVIEW
B
Image Optimization
8 images, 0 KB saveable
REVIEW
8 images, 0 KB saveable
Info::
All images are well-optimized
8 images 7 KB
0 oversized -0 KB
8 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1634ms total JS execution
REVIEW
1634ms total JS execution
Warning::
https://beavercheck.com/: 912ms CPU time
Warning::
Unattributable: 292ms CPU time
Warning::
https://beavercheck.com/static/js/alpine.min.js?v=...: 253ms CPU time
Info::
https://beavercheck.com/static/js/components.js?v=...: 177ms CPU time
Info::
Third-party scripts: 292ms (18% of total)

Main Thread Breakdown

Style & Layout 32% Other 29% Rendering 18% Script Evaluation 16% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://beavercheck.com/912ms28ms2ms1st
Unattributable292ms5ms0ms3rd
https://beavercheck.com/static/js/alpine.min.js?v=56a26e3253ms178ms5ms1st
https://beavercheck.com/static/js/components.js?v=56a26e3177ms30ms2ms1st
A+
Page Weight Budget
196 KB transferred, 23 requests
PASS
196 KB transferred, 23 requests
Info::
Page weighs 542 KB (196 KB transferred)
Info::
23 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
196 KB / 2.4 MB budget
196 KB transferred
23 requests
0.04 g CO2 per page load
Fonts 95.4 KiB 49%
JavaScript 54.1 KiB 28%
HTML 19.8 KiB 10%
CSS 18.5 KiB 9%
Images 7.2 KiB 4%
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 FCP 994 ms LCP 1.6 shttps://beavercheck.com/static/fonts/inter-400.woff2inter-400.woff2 https://beavercheck.com/static/fonts/inter-400.woff2 — 23.3 KiB — 25 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-600.woff2inter-600.woff2 https://beavercheck.com/static/fonts/inter-600.woff2 — 24.1 KiB — 29 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-500.woff2inter-500.woff2 https://beavercheck.com/static/fonts/inter-500.woff2 — 23.9 KiB — 23 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-700.woff2inter-700.woff2 https://beavercheck.com/static/fonts/inter-700.woff2 — 24.0 KiB — 29 ms — font-display: swap
inter-400.woff2 woff2 swap
Size 23 KB
Load time 25 ms
Start 181 ms
Risk FOUT — text flashes from fallback to web font
inter-600.woff2 woff2 swap
Size 24 KB
Load time 29 ms
Start 182 ms
Risk FOUT — text flashes from fallback to web font
inter-500.woff2 woff2 swap
Size 24 KB
Load time 23 ms
Start 221 ms
Risk FOUT — text flashes from fallback to web font
inter-700.woff2 woff2 swap
Size 24 KB
Load time 29 ms
Start 222 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=56a26e319 KB—✓1st
https://beavercheck.com/static/js/htmx-config.js?v=56a26e30 KB—✓1st
https://beavercheck.com/static/js/components.js?v=56a26e36 KB—✓1st
https://beavercheck.com/static/js/alpine.min.js?v=56a26e322 KB—✓1st
https://beavercheck.com/static/js/app.js?v=56a26e34 KB—✓1st
https://beavercheck.com/static/js/actions.js?v=56a26e33 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
23 resources · 196 KB · 0 KB savings available
PASS
23 resources · 196 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 196 KB
23 resources · 195.7 KiB · 0 third-party Within 1MB page-weight target
Font 49% · 95.4 KiB
JavaScript 28% · 54.1 KiB
Document 10% · 19.8 KiB
CSS 9% · 18.5 KiB
Image 4% · 7.2 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
23 requests over 321ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 994 ms LCP 1.6 shttps://beavercheck.com// https://beavercheck.com/ — 200 — 19.8 KiB — 94 ms — h2https://beavercheck.com/static/css/output.css?v=56a26e3/static/css/output.css?v=56a26e3 https://beavercheck.com/static/css/output.css?v=56a26e3 — 200 — 18.5 KiB — 30 ms — h2https://beavercheck.com/static/js/htmx.min.js?v=56a26e3/static/js/htmx.min.js?v=56a26e3 https://beavercheck.com/static/js/htmx.min.js?v=56a26e3 — 200 — 18.6 KiB — 31 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 2.0 KiB — 47 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 — 49 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 — 33 ms — h2https://beavercheck.com/static/js/htmx-config.js?v=56a26e3/static/js/htmx-config.js?v=56a26e3 https://beavercheck.com/static/js/htmx-config.js?v=56a26e3 — 200 — 367 B — 35 ms — h2https://beavercheck.com/static/js/components.js?v=56a26e3/static/js/components.js?v=56a26e3 https://beavercheck.com/static/js/components.js?v=56a26e3 — 200 — 6.1 KiB — 37 ms — h2https://beavercheck.com/static/js/alpine.min.js?v=56a26e3/static/js/alpine.min.js?v=56a26e3 https://beavercheck.com/static/js/alpine.min.js?v=56a26e3 — 200 — 22.0 KiB — 38 ms — h2https://beavercheck.com/static/js/app.js?v=56a26e3/static/js/app.js?v=56a26e3 https://beavercheck.com/static/js/app.js?v=56a26e3 — 200 — 4.5 KiB — 41 ms — h2https://beavercheck.com/static/js/actions.js?v=56a26e3/static/js/actions.js?v=56a26e3 https://beavercheck.com/static/js/actions.js?v=56a26e3 — 200 — 2.6 KiB — 44 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/img/flags/es.svg/static/img/flags/es.svg https://beavercheck.com/static/img/flags/es.svg — 200 — 326 B — 51 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 — 52 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 — 25 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 — 29 ms — h2https://beavercheck.com/static/site.webmanifest/static/site.webmanifest https://beavercheck.com/static/site.webmanifest — 200 — 827 B — 69 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 — 21 ms — h2https://beavercheck.com/favicons/uniqlo.com.png/favicons/uniqlo.com.png https://beavercheck.com/favicons/uniqlo.com.png — 200 — 1.9 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 — 23 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 — 29 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 — 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
18% of JavaScript execution is third-party
First-party Third-party 292ms · 0KB · €4/mo
Unattributable
Other
Costly
Execution 292ms
Transfer 0 KB
Monthly Cost €4/mo

These scripts may cost more than they're worth

  • Unattributable adds 292ms and costs ~€4/month

Unattributable takes 292ms 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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