Skip to content
https://menzionami.it

Performance

· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
88
GRADE
B
FIX
1
REVIEW
9
PASS
13
INFO
4

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

Mobile Desktop
57
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
87
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
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.

3.10 s

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

6.93 s

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

534 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.

3.10 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.

7.82 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
27
13 PASS 9 REVIEW 1 FIX
F
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::
Last-Modified header present

No Cache-Control header

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

B
Page Weight Budget
1.3 MB transferred, 14 requests
REVIEW
1.3 MB transferred, 14 requests
Info::
Page weighs 1.6 MB (1.3 MB transferred)
Info::
Fonts are 227 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 227 KB
Info::
14 HTTP requests
Info::
Estimated 0.27 g CO2 per page load
1.3 MB / 2.4 MB budget
1.3 MB transferred
14 requests
0.27 g CO2 per page load
Images 716.3 KiB 54%
Fonts 227.3 KiB 17%
HTML 186.2 KiB 14%
JavaScript 135.5 KiB 10%
Other 27.4 KiB 2%
Other 15.8 KiB 1%
CSS 15.6 KiB 1%
0 2.4 MB 4.9 MB
Under budget

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

B
Image Optimization
3 images, 0 KB saveable
REVIEW
3 images, 0 KB saveable
Warning::
https://menzionami.it/content-mention-1.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://menzionami.it/content-mention-2.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://menzionami.it/content-mention-3.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
3 images 716 KB
0 oversized -0 KB
3 legacy format
3 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

C
JS Execution Cost
Action
1621ms total JS execution
REVIEW
1621ms total JS execution
Warning::
https://menzionami.it/: 1096ms CPU time
Warning::
Unattributable: 286ms CPU time
Info::
https://cdn.tailwindcss.com/: 137ms CPU time
Info::
https://menzionami.it/voice-widget.js: 102ms CPU time
Info::
Third-party scripts: 137ms (8% of total)

Main Thread Breakdown

Script Evaluation 48% Other 24% Style & Layout 18%
ScriptTotalScriptingParse/CompileParty
https://menzionami.it/1096ms581ms7ms1st
Unattributable286ms7ms0ms1st
https://cdn.tailwindcss.com/137ms105ms32ms3rd
https://menzionami.it/voice-widget.js102ms86ms1ms1st
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
Document Compression
Action
Document response served uncompressed
REVIEW
Document 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
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.
B
Page Weight Inventory
14 resources · 1.3 MB · 0 KB savings available
REVIEW
14 resources · 1.3 MB · 0 KB savings available
Warning::
Page weight 1.3 MB exceeds 1 MB target by 300 KB
Got: 1.3 MB Expected: ≤ 1 MB
Info::
5 third-party resources (28% of weight)
Info::
2 resources over 200KB
14 resources · 1.3 MiB · 5 third-party 299.9 KiB over 1MB target
Image 55% · 731.4 KiB
Font 17% · 227.3 KiB
Document 14% · 186.3 KiB
JavaScript 10% · 135.5 KiB
Other 2% · 27.8 KiB
CSS 1% · 15.6 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A
Third-Party Impact
28% third-party, 0 ms blocking
PASS
28% third-party, 0 ms blocking
Info::
Third-party code accounts for 28% of page weight (367.2 KiB of 1.3 MiB)
Info::
Third-party blocking time is low (0 ms)
72%
28%
First-party Third-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
2 fonts (227 KB)
PASS
2 fonts (227 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

227 KB total

Render-blocking

0

of 2

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 4.0 s 5.0 s 6.0 s 7.0 s FCP 3.1 s LCP 6.9 shttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-solid-900.woff2fa-solid-900.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-solid-900.woff2 — 124.6 KiB — 127 ms — font-display: swaphttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-brands-400.woff2fa-brands-400.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-brands-400.woff2 — 102.7 KiB — 125 ms — font-display: swap
fa-solid-900.woff2 woff2 swap
Size 125 KB
Load time 127 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
fa-brands-400.woff2 woff2 swap
Size 103 KB
Load time 125 ms
Start 1.7 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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)

Fixing the unchecked items could save ~114 KB and ~228 ms

A
JS Bundles
2 scripts, 0 KB unused
PASS
2 scripts, 0 KB unused
Warning::
https://menzionami.it/voice-widget.js: unminified — 3 KB could be saved
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.tailwindcss.com/3.4.17124 KB—✓3rd
https://menzionami.it/voice-widget.js12 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+
Server Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
Info::
`Last-Modified` present -- timestamp-based conditional GET supported
Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.
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
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
14 requests over 2231ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 3.1 s LCP 6.9 shttps://menzionami.it// https://menzionami.it/ — 200 — 11.8 KiB — 128 ms — h2https://menzionami.it/z0f76a1d14fd21a8fb5fd0d03e0fdc3d3cedae52f?wsidchk=10066326&pdata=https%253A%252F%252Fmenzionami.it&id=7fa3b767c460b54a2be4d49030b349c7&ts=1792513154&cttl=0/z0f76a1d14fd21a8fb5fd0d03e0fdc3d3c... https://menzionami.it/z0f76a1d14fd21a8fb5fd0d03e0fdc3d3cedae52f?wsidchk=10066326&pdata=https%253A%252F%252Fmenzionami.it&id=7fa3b767c460b54a2be4d49030b349c7&ts=1792513154&cttl=0 — 302 — 185 B — 34 ms — h2https://menzionami.it// https://menzionami.it/ — 200 — 174.3 KiB — 142 ms — h2https://cdn.tailwindcss.com/cdn.tailwindcss.com/ https://cdn.tailwindcss.com/ — 302 — 473 B — 91 ms — h2https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.csscdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css — 200 — 15.6 KiB — 94 ms — h3https://menzionami.it/content-mention-1.jpg/content-mention-1.jpg https://menzionami.it/content-mention-1.jpg — 200 — 246.2 KiB — 100 ms — h2https://menzionami.it/content-mention-2.jpg/content-mention-2.jpg https://menzionami.it/content-mention-2.jpg — 200 — 174.3 KiB — 96 ms — h2https://cdn.tailwindcss.com/3.4.17cdn.tailwindcss.com/3.4.17 https://cdn.tailwindcss.com/3.4.17 — 200 — 123.9 KiB — 49 ms — h2https://menzionami.it/content-mention-3.jpg/content-mention-3.jpg https://menzionami.it/content-mention-3.jpg — 200 — 295.8 KiB — 65 ms — h2https://menzionami.it/voice-widget.js/voice-widget.js https://menzionami.it/voice-widget.js — 200 — 11.6 KiB — 59 ms — h2https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-solid-900.woff2cdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-solid-900.woff2 — 200 — 124.6 KiB — 127 ms — h3https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-brands-400.woff2cdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-brands-400.woff2 — 200 — 102.7 KiB — 125 ms — h3https://menzionami.it/config.php/config.php https://menzionami.it/config.php — 200 — 27.4 KiB — 553 ms — h2https://menzionami.it/favicon.ico/favicon.ico https://menzionami.it/favicon.ico — 200 — 15.1 KiB — 41 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
8% of JavaScript execution is third-party
First-party Third-party 137ms · 0KB · €1/mo
cdn.tailwindcss.com
Other
Optional
Execution 137ms
Transfer 0 KB
Monthly Cost €1/mo

How third-party costs are calculated

Image Optimization
5 images, 716 KB total, 338 KB wasted
INFO

Image Optimization Audit

Total Images

5

Total Size

716 KB

Oversized

2

Wasted

338 KB

5 missing dimensions 5 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback