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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
93
GRADE
A
FIX
1
REVIEW
1
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.
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.

1.18 s

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

1.18 s

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

157 ms

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

0.036

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

1.62 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.

2.15 s

Page Load Progression

404 ms
807 ms
1.2 s
1.6 s
2.0 s
2.4 s
2.8 s
3.2 s
Checks
17
13 PASS 1 REVIEW 1 FIX
D
JS Execution Cost
Action
2392ms total JS execution
FIX
2392ms total JS execution
Warning::
https://beavercheck.com/: 1384ms CPU time
Warning::
Unattributable: 422ms CPU time
Warning::
https://beavercheck.com/static/js/components.js?v=...: 281ms CPU time
Info::
https://beavercheck.com/static/js/alpine.min.js?v=...: 232ms CPU time
Info::
https://beavercheck.com/static/js/htmx.min.js?v=54...: 74ms CPU time
Info::
Third-party scripts: 422ms (18% of total)

Main Thread Breakdown

Style & Layout 32% Other 30% Rendering 20% Script Evaluation 14%
ScriptTotalScriptingParse/CompileParty
https://beavercheck.com/1384ms27ms2ms1st
Unattributable422ms7ms0ms3rd
https://beavercheck.com/static/js/components.js?v=54009ce281ms44ms3ms1st
https://beavercheck.com/static/js/alpine.min.js?v=54009ce232ms210ms10ms1st
https://beavercheck.com/static/js/htmx.min.js?v=54009ce74ms57ms15ms1st
B
Image Optimization
8 images, 0 KB saveable
REVIEW
8 images, 0 KB saveable
Info::
All images are well-optimized
8 images 19 KB
0 oversized -0 KB
8 legacy format
0 missing dimensions CLS risk
A+
Page Weight Budget
204 KB transferred, 23 requests
PASS
204 KB transferred, 23 requests
Info::
Page weighs 530 KB (204 KB transferred)
Info::
23 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
204 KB / 2.4 MB budget
204 KB transferred
23 requests
0.04 g CO2 per page load
Fonts 95.4 KiB 47%
JavaScript 53.6 KiB 26%
Images 18.8 KiB 9%
HTML 18.3 KiB 9%
CSS 17.3 KiB 8%
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 FCP 1.2 s LCP 1.2 shttps://beavercheck.com/static/fonts/inter-400.woff2inter-400.woff2 https://beavercheck.com/static/fonts/inter-400.woff2 — 23.3 KiB — 195 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-600.woff2inter-600.woff2 https://beavercheck.com/static/fonts/inter-600.woff2 — 24.1 KiB — 227 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-500.woff2inter-500.woff2 https://beavercheck.com/static/fonts/inter-500.woff2 — 23.9 KiB — 229 ms — font-display: swaphttps://beavercheck.com/static/fonts/inter-700.woff2inter-700.woff2 https://beavercheck.com/static/fonts/inter-700.woff2 — 24.0 KiB — 234 ms — font-display: swap
inter-400.woff2 woff2 swap
Size 23 KB
Load time 195 ms
Start 725 ms
Risk FOUT — text flashes from fallback to web font
inter-600.woff2 woff2 swap
Size 24 KB
Load time 227 ms
Start 726 ms
Risk FOUT — text flashes from fallback to web font
inter-500.woff2 woff2 swap
Size 24 KB
Load time 229 ms
Start 726 ms
Risk FOUT — text flashes from fallback to web font
inter-700.woff2 woff2 swap
Size 24 KB
Load time 234 ms
Start 726 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=54009ce19 KB—✓1st
https://beavercheck.com/static/js/htmx-config.js?v=54009ce0 KB—✓1st
https://beavercheck.com/static/js/components.js?v=54009ce6 KB—✓1st
https://beavercheck.com/static/js/alpine.min.js?v=54009ce22 KB—✓1st
https://beavercheck.com/static/js/app.js?v=54009ce4 KB—✓1st
https://beavercheck.com/static/js/actions.js?v=54009ce3 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 · 204 KB · 0 KB savings available
PASS
23 resources · 204 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 204 KB
23 resources · 204.2 KiB · 0 third-party Within 1MB page-weight target
Font 47% · 95.4 KiB
JavaScript 26% · 53.6 KiB
Image 9% · 18.8 KiB
Document 9% · 18.3 KiB
CSS 8% · 17.3 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 998ms
INFO
0 ms 500 ms 1.0 s FCP 1.2 s LCP 1.2 shttps://beavercheck.com// https://beavercheck.com/ — 200 — 18.3 KiB — 614 ms — h2https://beavercheck.com/static/css/output.css?v=54009ce/static/css/output.css?v=54009ce https://beavercheck.com/static/css/output.css?v=54009ce — 200 — 17.3 KiB — 160 ms — h2https://beavercheck.com/static/js/htmx.min.js?v=54009ce/static/js/htmx.min.js?v=54009ce https://beavercheck.com/static/js/htmx.min.js?v=54009ce — 200 — 18.6 KiB — 305 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 2.0 KiB — 257 ms — h2https://beavercheck.com/static/js/htmx-config.js?v=54009ce/static/js/htmx-config.js?v=54009ce https://beavercheck.com/static/js/htmx-config.js?v=54009ce — 200 — 367 B — 299 ms — h2https://beavercheck.com/static/js/components.js?v=54009ce/static/js/components.js?v=54009ce https://beavercheck.com/static/js/components.js?v=54009ce — 200 — 5.7 KiB — 298 ms — h2https://beavercheck.com/static/js/alpine.min.js?v=54009ce/static/js/alpine.min.js?v=54009ce https://beavercheck.com/static/js/alpine.min.js?v=54009ce — 200 — 22.0 KiB — 295 ms — h2https://beavercheck.com/static/js/app.js?v=54009ce/static/js/app.js?v=54009ce https://beavercheck.com/static/js/app.js?v=54009ce — 200 — 4.4 KiB — 303 ms — h2https://beavercheck.com/static/js/actions.js?v=54009ce/static/js/actions.js?v=54009ce https://beavercheck.com/static/js/actions.js?v=54009ce — 200 — 2.6 KiB — 332 ms — h2https://beavercheck.com/static/site.webmanifest/static/site.webmanifest https://beavercheck.com/static/site.webmanifest — 200 — 827 B — 468 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 — 292 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 — 292 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 — 295 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 — 297 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 — 300 ms — h2https://beavercheck.com/favicons/unlp.edu.ar.png/favicons/unlp.edu.ar.png https://beavercheck.com/favicons/unlp.edu.ar.png — 200 — 7.7 KiB — 238 ms — h2https://beavercheck.com/favicons/dilbert.com.png/favicons/dilbert.com.png https://beavercheck.com/favicons/dilbert.com.png — 200 — 6.1 KiB — 270 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 — 195 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 — 227 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 — 229 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 — 234 ms — h2https://beavercheck.com/static/img/beaver.svg/static/img/beaver.svg https://beavercheck.com/static/img/beaver.svg — 200 — 0 B — 4 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 422ms · 0KB · €6/mo
Unattributable
Other
Costly
Execution 422ms
Transfer 0 KB
Monthly Cost €6/mo

These scripts may cost more than they're worth

  • Unattributable adds 422ms and costs ~€6/month

Unattributable takes 422ms 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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