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Performance

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

369 ms

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

445 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.

369 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.

445 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
11 PASS 2 REVIEW
B
Image Optimization
11 images, 0 KB saveable
REVIEW
11 images, 0 KB saveable
Info::
All images are well-optimized
11 images 23 KB
0 oversized -0 KB
11 legacy format
0 missing dimensions CLS risk
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
212 KB transferred, 26 requests
PASS
212 KB transferred, 26 requests
Info::
Page weighs 558 KB (212 KB transferred)
Info::
26 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
212 KB / 2.4 MB budget
212 KB transferred
26 requests
0.04 g CO2 per page load
Fonts 95.4 KiB 45%
JavaScript 54.1 KiB 26%
Images 23.2 KiB 11%
HTML 19.7 KiB 9%
CSS 18.5 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
391ms total JS execution
PASS
391ms total JS execution
Warning::
https://beavercheck.com/: 274ms CPU time
Info::
Unattributable: 59ms CPU time
Info::
https://beavercheck.com/static/js/components.js?v=...: 57ms CPU time
Info::
Third-party scripts: 59ms (15% of total)

Main Thread Breakdown

Style & Layout 33% Other 28% Rendering 20% Script Evaluation 14%
ScriptTotalScriptingParse/CompileParty
https://beavercheck.com/274ms4ms0ms1st
Unattributable59ms1ms0ms3rd
https://beavercheck.com/static/js/components.js?v=2a5742557ms10ms0ms1st
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 369 ms LCP 445 mshttps://beavercheck.com/static/fonts/inter-400.woff2inter-400.woff2 https://beavercheck.com/static/fonts/inter-400.woff2 — 23.3 KiB — 24 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-600.woff2inter-600.woff2 https://beavercheck.com/static/fonts/inter-600.woff2 — 24.1 KiB — 25 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-500.woff2inter-500.woff2 https://beavercheck.com/static/fonts/inter-500.woff2 — 23.9 KiB — 26 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-700.woff2inter-700.woff2 https://beavercheck.com/static/fonts/inter-700.woff2 — 24.0 KiB — 28 ms — font-display: swap
inter-400.woff2 woff2 swap
Size 23 KB
Load time 24 ms
Start 204 ms
Risk FOUT — text flashes from fallback to web font
inter-600.woff2 woff2 swap
Size 24 KB
Load time 25 ms
Start 205 ms
Risk FOUT — text flashes from fallback to web font
inter-500.woff2 woff2 swap
Size 24 KB
Load time 26 ms
Start 205 ms
Risk FOUT — text flashes from fallback to web font
inter-700.woff2 woff2 swap
Size 24 KB
Load time 28 ms
Start 205 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=2a5742519 KB—✓1st
https://beavercheck.com/static/js/htmx-config.js?v=2a574250 KB—✓1st
https://beavercheck.com/static/js/components.js?v=2a574256 KB—✓1st
https://beavercheck.com/static/js/alpine.min.js?v=2a5742522 KB—✓1st
https://beavercheck.com/static/js/app.js?v=2a574254 KB—✓1st
https://beavercheck.com/static/js/actions.js?v=2a574253 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
26 resources · 212 KB · 0 KB savings available
PASS
26 resources · 212 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 212 KB
26 resources · 211.7 KiB · 0 third-party Within 1MB page-weight target
Font 45% · 95.4 KiB
JavaScript 26% · 54.1 KiB
Image 11% · 23.2 KiB
Document 9% · 19.7 KiB
CSS 9% · 18.5 KiB
Other 0% · 827 B
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 289ms
INFO
0 ms 200 ms 400 ms FCP 369 ms LCP 445 mshttps://beavercheck.com// https://beavercheck.com/ — 200 — 19.7 KiB — 87 ms — h2https://beavercheck.com/static/css/output.css?v=2a57425/static/css/output.css?v=2a57425 https://beavercheck.com/static/css/output.css?v=2a57425 — 200 — 18.5 KiB — 32 ms — h2https://beavercheck.com/static/js/htmx.min.js?v=2a57425/static/js/htmx.min.js?v=2a57425 https://beavercheck.com/static/js/htmx.min.js?v=2a57425 — 200 — 18.6 KiB — 30 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 2.0 KiB — 44 ms — h2https://beavercheck.com/static/js/htmx-config.js?v=2a57425/static/js/htmx-config.js?v=2a57425 https://beavercheck.com/static/js/htmx-config.js?v=2a57425 — 200 — 367 B — 32 ms — h2https://beavercheck.com/static/js/components.js?v=2a57425/static/js/components.js?v=2a57425 https://beavercheck.com/static/js/components.js?v=2a57425 — 200 — 6.1 KiB — 33 ms — h2https://beavercheck.com/static/js/alpine.min.js?v=2a57425/static/js/alpine.min.js?v=2a57425 https://beavercheck.com/static/js/alpine.min.js?v=2a57425 — 200 — 22.0 KiB — 31 ms — h2https://beavercheck.com/static/js/app.js?v=2a57425/static/js/app.js?v=2a57425 https://beavercheck.com/static/js/app.js?v=2a57425 — 200 — 4.5 KiB — 32 ms — h2https://beavercheck.com/static/js/actions.js?v=2a57425/static/js/actions.js?v=2a57425 https://beavercheck.com/static/js/actions.js?v=2a57425 — 200 — 2.6 KiB — 33 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 — 32 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/img/flags/sg.svg/static/img/flags/sg.svg https://beavercheck.com/static/img/flags/sg.svg — 200 — 479 B — 34 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 — 35 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 — 36 ms — h2https://beavercheck.com/static/site.webmanifest/static/site.webmanifest https://beavercheck.com/static/site.webmanifest — 200 — 827 B — 71 ms — h2https://beavercheck.com/favicons/beavercheck.com.png/favicons/beavercheck.com.png https://beavercheck.com/favicons/beavercheck.com.png — 200 — 4.8 KiB — 22 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 — 23 ms — h2https://beavercheck.com/favicons/uniqlo.com.png/favicons/uniqlo.com.png https://beavercheck.com/favicons/uniqlo.com.png — 200 — 1.9 KiB — 24 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 — 25 ms — h2https://beavercheck.com/favicons/goodschina.ru.png/favicons/goodschina.ru.png https://beavercheck.com/favicons/goodschina.ru.png — 200 — 5.7 KiB — 26 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 — 24 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 — 25 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 — 26 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 — 28 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 — 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 59ms · 0KB · €1/mo
Unattributable
Other
Optional
Execution 59ms
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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