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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
95
GRADE
A
FIX
0
REVIEW
1
PASS
12
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.
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.

288 ms

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

340 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.

0.011

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

345 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.

340 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
15
12 PASS 1 REVIEW
B
Image Optimization
10 images, 0 KB saveable
REVIEW
10 images, 0 KB saveable
Info::
All images are well-optimized
10 images 18 KB
0 oversized -0 KB
10 legacy format
0 missing dimensions CLS risk
A+
Page Weight Budget
207 KB transferred, 25 requests
PASS
207 KB transferred, 25 requests
Info::
Page weighs 553 KB (207 KB transferred)
Info::
25 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
207 KB / 2.4 MB budget
207 KB transferred
25 requests
0.04 g CO2 per page load
Fonts 95.4 KiB 46%
JavaScript 54.1 KiB 26%
HTML 19.8 KiB 10%
CSS 18.5 KiB 9%
Images 18.4 KiB 9%
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+
JS Execution Cost
284ms total JS execution
PASS
284ms total JS execution
Info::
https://beavercheck.com/: 220ms CPU time
Info::
Unattributable: 64ms CPU time
Info::
Third-party scripts: 64ms (23% of total)

Main Thread Breakdown

Style & Layout 33% Other 28% Rendering 18% Script Evaluation 15% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://beavercheck.com/220ms2ms1ms1st
Unattributable64ms1ms0ms3rd
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 288 ms LCP 340 mshttps://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 — 34 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-500.woff2inter-500.woff2 https://beavercheck.com/static/fonts/inter-500.woff2 — 23.9 KiB — 34 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-700.woff2inter-700.woff2 https://beavercheck.com/static/fonts/inter-700.woff2 — 24.0 KiB — 35 ms — font-display: swap
inter-400.woff2 woff2 swap
Size 23 KB
Load time 22 ms
Start 210 ms
Risk FOUT — text flashes from fallback to web font
inter-600.woff2 woff2 swap
Size 24 KB
Load time 34 ms
Start 211 ms
Risk FOUT — text flashes from fallback to web font
inter-500.woff2 woff2 swap
Size 24 KB
Load time 34 ms
Start 212 ms
Risk FOUT — text flashes from fallback to web font
inter-700.woff2 woff2 swap
Size 24 KB
Load time 35 ms
Start 212 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
25 resources · 207 KB · 0 KB savings available
PASS
25 resources · 207 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 207 KB
25 resources · 206.9 KiB · 0 third-party Within 1MB page-weight target
Font 46% · 95.4 KiB
JavaScript 26% · 54.1 KiB
Document 10% · 19.8 KiB
CSS 9% · 18.5 KiB
Image 9% · 18.4 KiB
Other 0% · 827 B
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
25 requests over 300ms
INFO
0 ms 200 ms FCP 288 ms LCP 340 mshttps://beavercheck.com// https://beavercheck.com/ — 200 — 19.8 KiB — 89 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 — 32 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 2.0 KiB — 48 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 — 41 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 — 42 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 — 43 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 — 44 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 — 45 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 — 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/img/flags/es.svg/static/img/flags/es.svg https://beavercheck.com/static/img/flags/es.svg — 200 — 326 B — 46 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 — 47 ms — h2https://beavercheck.com/static/site.webmanifest/static/site.webmanifest https://beavercheck.com/static/site.webmanifest — 200 — 827 B — 62 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 — 30 ms — h2https://beavercheck.com/favicons/uniqlo.com.png/favicons/uniqlo.com.png https://beavercheck.com/favicons/uniqlo.com.png — 200 — 1.9 KiB — 30 ms — h2https://beavercheck.com/favicons/build-tech.ai.png/favicons/build-tech.ai.png https://beavercheck.com/favicons/build-tech.ai.png — 200 — 5.4 KiB — 30 ms — h2https://beavercheck.com/favicons/goodschina.ru.png/favicons/goodschina.ru.png https://beavercheck.com/favicons/goodschina.ru.png — 200 — 5.7 KiB — 31 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 — 34 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 — 34 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 — 35 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
23% of JavaScript execution is third-party
First-party Third-party 64ms · 0KB · €1/mo
Unattributable
Other
Optional
Execution 64ms
Transfer 0 KB
Monthly Cost €1/mo

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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