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Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
6
PASS
13
INFO
2

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

Mobile Desktop
98
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.

1.31 s

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

1.72 s

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

94 ms

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

0.041

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

2.51 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.

2.33 s

Page Load Progression

545 ms
1.1 s
1.6 s
2.2 s
2.7 s
3.3 s
3.8 s
4.4 s
Checks
22
13 PASS 6 REVIEW 1 FIX
D
JS Execution Cost
Action
2198ms total JS execution
FIX
2198ms total JS execution
Warning::
https://beavercheck.com/: 1487ms CPU time
Warning::
Unattributable: 445ms CPU time
Info::
https://beavercheck.com/static/js/alpine.min.js?v=...: 203ms CPU time
Info::
https://beavercheck.com/static/js/htmx.min.js?v=52...: 63ms CPU time
Info::
Third-party scripts: 445ms (20% of total)

Main Thread Breakdown

Style & Layout 42% Other 31% Script Evaluation 13% Rendering 11%
ScriptTotalScriptingParse/CompileParty
https://beavercheck.com/1487ms24ms2ms1st
Unattributable445ms9ms0ms3rd
https://beavercheck.com/static/js/alpine.min.js?v=52349c0203ms186ms8ms1st
https://beavercheck.com/static/js/htmx.min.js?v=52349c063ms55ms7ms1st
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 238.3 KiB 16%
Fonts 95.4 KiB 7%
JavaScript 54.6 KiB 4%
CSS 20.4 KiB 1%
HTML 18.1 KiB 1%
Other 827 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 238 KB
0 oversized -0 KB
10 legacy format
0 missing dimensions CLS risk
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
C
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
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 1.4 MB exceeds 1 MB target by 423 KB
Got: 1.4 MB Expected: ≤ 1 MB
Info::
1 resources over 200KB
26 resources · 1.4 MiB · 0 third-party 423.1 KiB over 1MB target
Media 70% · 1019.6 KiB
Image 16% · 238.3 KiB
Font 7% · 95.4 KiB
JavaScript 4% · 54.6 KiB
CSS 1% · 20.4 KiB
Document 1% · 18.1 KiB
Other 0% · 827 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 1.5 s 2.0 s FCP 1.3 s LCP 1.7 shttps://beavercheck.com/static/fonts/inter-400.woff2inter-400.woff2 https://beavercheck.com/static/fonts/inter-400.woff2 — 23.3 KiB — 598 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-600.woff2inter-600.woff2 https://beavercheck.com/static/fonts/inter-600.woff2 — 24.1 KiB — 598 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-500.woff2inter-500.woff2 https://beavercheck.com/static/fonts/inter-500.woff2 — 23.9 KiB — 598 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-700.woff2inter-700.woff2 https://beavercheck.com/static/fonts/inter-700.woff2 — 24.0 KiB — 621 ms — font-display: swap
inter-400.woff2 woff2 swap
Size 23 KB
Load time 598 ms
Start 1.3 s
Risk FOUT — text flashes from fallback to web font
inter-600.woff2 woff2 swap
Size 24 KB
Load time 598 ms
Start 1.3 s
Risk FOUT — text flashes from fallback to web font
inter-500.woff2 woff2 swap
Size 24 KB
Load time 598 ms
Start 1.3 s
Risk FOUT — text flashes from fallback to web font
inter-700.woff2 woff2 swap
Size 24 KB
Load time 621 ms
Start 1.3 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=52349c019 KB—✓1st
https://beavercheck.com/static/js/htmx-config.js?v=52349c00 KB—✓1st
https://beavercheck.com/static/js/components.js?v=52349c06 KB—✓1st
https://beavercheck.com/static/js/alpine.min.js?v=52349c022 KB—✓1st
https://beavercheck.com/static/js/app.js?v=52349c05 KB—✓1st
https://beavercheck.com/static/js/actions.js?v=52349c03 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+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Main HTML Cache-Control
Main HTML max-age=60 (≤ 5min) is appropriate
PASS
Main HTML max-age=60 (≤ 5min) is appropriate
Info::
Main HTML max-age=60 (≤ 5min) is appropriate
Got: public, max-age=60
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 2099ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.3 s LCP 1.7 shttps://beavercheck.com// https://beavercheck.com/ — 200 — 18.1 KiB — 1.0 s — h2https://beavercheck.com/static/css/output.css?v=52349c0/static/css/output.css?v=52349c0 https://beavercheck.com/static/css/output.css?v=52349c0 — 200 — 20.4 KiB — 362 ms — h2https://beavercheck.com/static/js/htmx.min.js?v=52349c0/static/js/htmx.min.js?v=52349c0 https://beavercheck.com/static/js/htmx.min.js?v=52349c0 — 200 — 18.6 KiB — 416 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 2.0 KiB — 362 ms — h2https://beavercheck.com/static/js/htmx-config.js?v=52349c0/static/js/htmx-config.js?v=52349c0 https://beavercheck.com/static/js/htmx-config.js?v=52349c0 — 200 — 367 B — 405 ms — h2https://beavercheck.com/static/js/components.js?v=52349c0/static/js/components.js?v=52349c0 https://beavercheck.com/static/js/components.js?v=52349c0 — 200 — 6.2 KiB — 407 ms — h2https://beavercheck.com/static/js/alpine.min.js?v=52349c0/static/js/alpine.min.js?v=52349c0 https://beavercheck.com/static/js/alpine.min.js?v=52349c0 — 200 — 22.0 KiB — 409 ms — h2https://beavercheck.com/static/js/app.js?v=52349c0/static/js/app.js?v=52349c0 https://beavercheck.com/static/js/app.js?v=52349c0 — 200 — 4.8 KiB — 443 ms — h2https://beavercheck.com/static/js/actions.js?v=52349c0/static/js/actions.js?v=52349c0 https://beavercheck.com/static/js/actions.js?v=52349c0 — 200 — 2.7 KiB — 550 ms — h2https://beavercheck.com/static/site.webmanifest/static/site.webmanifest https://beavercheck.com/static/site.webmanifest — 200 — 827 B — 621 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 — 456 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 — 455 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 — 456 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 — 457 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 — 459 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 — 460 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 — 1.1 s — h2https://beavercheck.com/favicons/beavercheck.com.png/favicons/beavercheck.com.png https://beavercheck.com/favicons/beavercheck.com.png — 200 — 4.8 KiB — 730 ms — h2https://beavercheck.com/favicons/nextjs.org.png/favicons/nextjs.org.png https://beavercheck.com/favicons/nextjs.org.png — 200 — 1.8 KiB — 730 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 — 792 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 — 598 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 — 598 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 — 598 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 — 621 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 — 4 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 445ms · 0KB · €6/mo
Unattributable
Other
Costly
Execution 445ms
Transfer 0 KB
Monthly Cost €6/mo

These scripts may cost more than they're worth

  • Unattributable adds 445ms and costs ~€6/month

Unattributable takes 445ms 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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