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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
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.
77
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.

1.09 s

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

1.48 s

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

147 ms

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

0.043

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

1.48 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.

2.02 s

Page Load Progression

382 ms
764 ms
1.1 s
1.5 s
1.9 s
2.3 s
2.7 s
3.1 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
1542ms total JS execution
REVIEW
1542ms total JS execution
Warning::
https://beavercheck.com/: 1013ms CPU time
Info::
Unattributable: 244ms CPU time
Info::
https://beavercheck.com/static/js/alpine.min.js?v=...: 229ms CPU time
Info::
https://beavercheck.com/static/js/htmx.min.js?v=a7...: 56ms CPU time
Info::
Third-party scripts: 244ms (16% of total)

Main Thread Breakdown

Style & Layout 43% Other 26% Script Evaluation 17% Rendering 9%
ScriptTotalScriptingParse/CompileParty
https://beavercheck.com/1013ms36ms1ms1st
Unattributable244ms6ms0ms3rd
https://beavercheck.com/static/js/alpine.min.js?v=a76744a229ms170ms7ms1st
https://beavercheck.com/static/js/htmx.min.js?v=a76744a56ms48ms7ms1st
A+
Page Weight Budget
195 KB transferred, 23 requests
PASS
195 KB transferred, 23 requests
Info::
Page weighs 529 KB (195 KB transferred)
Info::
23 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
195 KB / 2.4 MB budget
195 KB transferred
23 requests
0.04 g CO2 per page load
Fonts 95.4 KiB 49%
JavaScript 54.5 KiB 28%
CSS 20.4 KiB 10%
HTML 17.0 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 1.1 s LCP 1.5 shttps://beavercheck.com/static/fonts/inter-400.woff2inter-400.woff2 https://beavercheck.com/static/fonts/inter-400.woff2 — 23.3 KiB — 80 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-600.woff2inter-600.woff2 https://beavercheck.com/static/fonts/inter-600.woff2 — 24.1 KiB — 81 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-500.woff2inter-500.woff2 https://beavercheck.com/static/fonts/inter-500.woff2 — 23.9 KiB — 82 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-700.woff2inter-700.woff2 https://beavercheck.com/static/fonts/inter-700.woff2 — 24.0 KiB — 89 ms — font-display: swap
inter-400.woff2 woff2 swap
Size 23 KB
Load time 80 ms
Start 602 ms
Risk FOUT — text flashes from fallback to web font
inter-600.woff2 woff2 swap
Size 24 KB
Load time 81 ms
Start 603 ms
Risk FOUT — text flashes from fallback to web font
inter-500.woff2 woff2 swap
Size 24 KB
Load time 82 ms
Start 603 ms
Risk FOUT — text flashes from fallback to web font
inter-700.woff2 woff2 swap
Size 24 KB
Load time 89 ms
Start 604 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=a76744a19 KB—✓1st
https://beavercheck.com/static/js/htmx-config.js?v=a76744a0 KB—✓1st
https://beavercheck.com/static/js/components.js?v=a76744a6 KB—✓1st
https://beavercheck.com/static/js/alpine.min.js?v=a76744a22 KB—✓1st
https://beavercheck.com/static/js/app.js?v=a76744a5 KB—✓1st
https://beavercheck.com/static/js/actions.js?v=a76744a3 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 · 195 KB · 0 KB savings available
PASS
23 resources · 195 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 195 KB
23 resources · 195.3 KiB · 0 third-party Within 1MB page-weight target
Font 49% · 95.4 KiB
JavaScript 28% · 54.5 KiB
CSS 10% · 20.4 KiB
Document 9% · 17.0 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 737ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 1.1 s LCP 1.5 shttps://beavercheck.com// https://beavercheck.com/ — 200 — 17.0 KiB — 457 ms — h2https://beavercheck.com/static/css/output.css?v=a76744a/static/css/output.css?v=a76744a https://beavercheck.com/static/css/output.css?v=a76744a — 200 — 20.4 KiB — 113 ms — h2https://beavercheck.com/static/js/htmx.min.js?v=a76744a/static/js/htmx.min.js?v=a76744a https://beavercheck.com/static/js/htmx.min.js?v=a76744a — 200 — 18.6 KiB — 162 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 2.0 KiB — 113 ms — h2https://beavercheck.com/static/js/htmx-config.js?v=a76744a/static/js/htmx-config.js?v=a76744a https://beavercheck.com/static/js/htmx-config.js?v=a76744a — 200 — 367 B — 150 ms — h2https://beavercheck.com/static/js/components.js?v=a76744a/static/js/components.js?v=a76744a https://beavercheck.com/static/js/components.js?v=a76744a — 200 — 6.2 KiB — 151 ms — h2https://beavercheck.com/static/js/alpine.min.js?v=a76744a/static/js/alpine.min.js?v=a76744a https://beavercheck.com/static/js/alpine.min.js?v=a76744a — 200 — 22.0 KiB — 154 ms — h2https://beavercheck.com/static/js/app.js?v=a76744a/static/js/app.js?v=a76744a https://beavercheck.com/static/js/app.js?v=a76744a — 200 — 4.7 KiB — 155 ms — h2https://beavercheck.com/static/js/actions.js?v=a76744a/static/js/actions.js?v=a76744a https://beavercheck.com/static/js/actions.js?v=a76744a — 200 — 2.7 KiB — 175 ms — h2https://beavercheck.com/static/site.webmanifest/static/site.webmanifest https://beavercheck.com/static/site.webmanifest — 200 — 827 B — 229 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 — 149 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 — 151 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 — 152 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 — 154 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 — 155 ms — h2https://beavercheck.com/favicons//favicons/ https://beavercheck.com/favicons/ — 403 — 548 B — 78 ms — h2https://beavercheck.com/favicons/Vipoftalmologia.com.br.png/favicons/Vipoftalmologia.com.br.pn... https://beavercheck.com/favicons/Vipoftalmologia.com.br.png — 200 — 1.7 KiB — 89 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 — 80 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 — 81 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 — 82 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 — 89 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
16% of JavaScript execution is third-party
First-party Third-party 244ms · 0KB · €3/mo
Unattributable
Other
Costly
Execution 244ms
Transfer 0 KB
Monthly Cost €3/mo

These scripts may cost more than they're worth

  • Unattributable adds 244ms and costs ~€3/month

Unattributable takes 244ms 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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