Performance
· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.63 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.80 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
572 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.
4.71 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.
3.82 s
Page Load Progression
FJS Execution CostAction4310ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://ambulatoriofacile.it/ | 3090ms | 18ms | 7ms | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/4af27f77bd5de33b.js | 870ms | 496ms | 17ms | 1st |
| Unattributable | 273ms | 27ms | 0ms | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/2375e3fd2a9b8844.js | 78ms | 48ms | 14ms | 1st |
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BMain HTML Cache-ControlCache-Control present but without max-ageREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
BHTTP Cachings-maxage=31536000REVIEW
s-maxage=31536000
| Directive | Value | Meaning |
|---|---|---|
| s-maxage | 31536000 | CDN caches for 52 weeks |
A+Page Weight Budget548 KB transferred, 37 requestsPASS
A+Third-Party ImpactNo third-party resourcesPASS
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization3 images, 0 KB saveablePASS
A+Font Loading2 fonts (120 KB)PASS
Web fonts
2
120 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 Bundles14 scripts, 25 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://ambulatoriofacile.it/_next/static/chunks/4af27f77bd5de33b.js | 69 KB | 25 KB (37%) | ✓ | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/0f76ab7d090a2504.js | 20 KB | — | ✓ | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/2375e3fd2a9b8844.js | 30 KB | — | ✓ | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/f5ef96490f2d1f86.js | 9 KB | — | ✓ | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/797fcb0710da3be2.js | 7 KB | — | ✓ | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/turbopack-d5fc5cb32de8416c.js | 4 KB | — | ✓ | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/6e3f8fd0aa1f833a.js | 1 KB | — | ✓ | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/8943f771601776cd.js | 28 KB | — | ✓ | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/62c556c2b4e54d36.js | 24 KB | — | ✓ | 1st |
| https://ambulatoriofacile.it/_next/static/chunks/d96012bcfc98706a.js | 0 KB | — | ✓ | 1st |
Consider code splitting or tree shaking to reduce unused code.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints5 hints, 0 missing preconnectsPASS
Current Resource Hints
5 resource hints configured
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Page Weight Inventory37 resources · 548 KB · 25 KB savings availablePASS
~25.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 37 resources | 547.5 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Hetzner Online GmbH
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall37 requests over 1781msINFO
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-10-03 — 2026-10-30)
LCP (p75)
1712 ms
88% good
INP (p75)
64 ms
97% good
CLS (p75)
0.000
91% good
FCP (p75)
1496 ms
TTFB (p75)
887 ms
Image Optimization10 images, 53 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
10
Total Size
53 KB