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Performance

· 25 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
95
GRADE
A
FIX
1
REVIEW
3
PASS
19
INFO
2

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

89
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
92
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
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.

2.95 s

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

2.95 s

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.

0.000

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

2.95 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.

2.95 s

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
25
19 PASS 3 REVIEW 1 FIX
D
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Third-Party Impact
55% third-party, 0 ms blocking
REVIEW
55% third-party, 0 ms blocking
Warning::
Third-party code accounts for 55% of page weight (37.0 KiB of 67.3 KiB)
Info::
Third-party blocking time is low (0 ms)
45%
55%
First-party Third-party
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
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.
A+
Page Weight Budget
67 KB transferred, 9 requests
PASS
67 KB transferred, 9 requests
Info::
Page weighs 78 KB (67 KB transferred)
Info::
9 HTTP requests
Info::
Estimated 0.01 g CO2 per page load
67 KB / 2.4 MB budget
67 KB transferred
9 requests
0.01 g CO2 per page load
Fonts 36.1 KiB 54%
Images 19.1 KiB 28%
HTML 8.0 KiB 12%
Other 1.8 KiB 3%
CSS 899 B 1%
JavaScript 727 B 1%
Other 703 B 1%
0 2.4 MB 4.9 MB
Under budget
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+
Image Optimization
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 19 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
349ms total JS execution
PASS
349ms total JS execution
Info::
https://willygs.com/recursos/: 180ms CPU time
Info::
Unattributable: 169ms CPU time

Main Thread Breakdown

Other 55% Style & Layout 28% Script Evaluation 9% Rendering 4% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://willygs.com/recursos/180ms16ms2ms1st
Unattributable169ms5ms0ms1st
A+
Font Loading
1 fonts (36 KB)
PASS
1 fonts (36 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

36 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s FCP 3.0 s LCP 3.0 shttps://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu0-K6z9mXg.woff2rP2Yp2ywxg089UriI5-g4vl... https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu0-K6z9mXg.woff2 — 36.1 KiB — 79 ms — font-display: swap
rP2Yp2ywxg089UriI5-g4vl... woff2 swap
Size 36 KB
Load time 79 ms
Start 347 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
1 scripts, 0 KB unused
PASS
1 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://willygs.com/hcdn-cgi/jschallenge1 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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
2
preload
—
dns-prefetch
—
prefetch
—

2 resource hints configured

A+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+
Document Compression
Document response uses brotli
PASS
Document response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
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+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
`Vary` header declared: Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
Both `ETag` and `Last-Modified` present -- efficient revalidation supported
The page returns both `ETag` (content hash) and `Last-Modified` (timestamp) headers. Browsers can issue conditional GETs with `If-None-Match` or `If-Modified-Since`; the server returns 304 Not Modified for unchanged content, saving bandwidth. ETag is the more reliable of the two (timestamps fail in DST transitions and clock skew).
A
Page Weight Inventory
9 resources · 67 KB · 0 KB savings available
PASS
9 resources · 67 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 67 KB
Warning::
2 third-party resources (55% of weight)
9 resources · 67.3 KiB · 2 third-party Within 1MB page-weight target
Font 54% · 36.1 KiB
Image 28% · 19.1 KiB
Document 15% · 9.8 KiB
CSS 1% · 899 B
JavaScript 1% · 727 B
Other 1% · 703 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
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
1 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues 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: Hostinger

Asset Compression
No text asset hosts to measure
INFO
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall
9 requests over 4220ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 3.0 s LCP 3.0 shttps://willygs.com// https://willygs.com/ — 403 — 3.0 KiB — 83 ms — h2https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;600&display=swapfonts.googleapis.com/css2?family=DM... https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;600&display=swap — 200 — 899 B — 247 ms — h2https://willygs.com/hcdn-cgi/jschallenge/hcdn-cgi/jschallenge https://willygs.com/hcdn-cgi/jschallenge — 200 — 727 B — 26 ms — h2https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu0-K6z9mXg.woff2fonts.gstatic.com/s/dmsans/v17/rP2Y... https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu0-K6z9mXg.woff2 — 200 — 36.1 KiB — 79 ms — h3https://willygs.com/favicon.ico/favicon.ico https://willygs.com/favicon.ico — 404 — 1.8 KiB — 274 ms — h2https://willygs.com/hcdn-cgi/jschallenge-validate/hcdn-cgi/jschallenge-validate https://willygs.com/hcdn-cgi/jschallenge-validate — 200 — 703 B — 26 ms — h2https://willygs.com// https://willygs.com/ — 200 — 552 B — 270 ms — h2https://willygs.com/recursos//recursos/ https://willygs.com/recursos/ — 200 — 4.4 KiB — 266 ms — h2https://willygs.com/recursos/willy.webp/recursos/willy.webp https://willygs.com/recursos/willy.webp — 200 — 19.1 KiB — 280 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
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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