https://psicocitta.it
Performance
· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
90
GRADE
A
FIX
2
REVIEW
7
PASS
11
INFO
2
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
100
66
73
92
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
652 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
732 ms
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.
652 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
732 ms
Page Load Progression
Checks
2211 PASS 7 REVIEW 2 FIX
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
Third-Party Impact
Action100% third-party, 0 ms blocking
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (173.4 KiB of 173.5 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
FHTTP CachingActionNo cache headersFIX
HTTP Caching
ActionNo cache headers
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization17 images, 0 KB saveableREVIEW
Image Optimization
17 images, 0 KB saveable
17 images, 0 KB saveable
Warning::
https://www.psicocitta.it/consenso/skype.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
17 images 58 KB
0 oversized -0 KB
17 legacy format
1 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
BJS Bundles2 scripts, 63 KB unusedREVIEW
JS Bundles
2 scripts, 63 KB unused
2 scripts, 63 KB unused
Warning::
https://www.psicocitta.it/psicologia-benessere/scr...: 41 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.psicocitta.it/psicologia-benessere/scr...: 23 KB unused (89%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 63 KB
63 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.psicocitta.it/psicologia-benessere/scripts.lib.js | 56 KB | 41 KB (72%) | ✓ | 3rd |
| https://www.psicocitta.it/psicologia-benessere/scripts.11a.js | 26 KB | 23 KB (89%) | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
HTTP/3 (QUIC)
HTTP/3 not advertised
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.
CDocument CompressionActionDocument response served uncompressedREVIEW
Document Compression
ActionDocument response served uncompressed
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.
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
Main HTML Cache-Control
No Cache-Control header on main HTML response
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.
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
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.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
A+Page Weight Budget173 KB transferred, 25 requestsPASS
Page Weight Budget
173 KB transferred, 25 requests
173 KB transferred, 25 requests
Info::
Page weighs 531 KB (173 KB transferred)
Info::
25 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
173 KB transferred
25 requests
0.04 g CO2 per page load
JavaScript 82.1 KiB 47%
Images 57.7 KiB 33%
CSS 22.9 KiB 13%
HTML 8.6 KiB 5%
Other 1.8 KiB 1%
Other 438 B 0%
0 2.4 MB 4.9 MB
Under budget
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+JS Execution CostNo JS execution dataPASS
JS Execution Cost
No JS execution data
No JS execution data
Info::
No significant JS execution detected
Main Thread Breakdown
Other 35% Style & Layout 25% Script Evaluation 23% Script Parsing & Compilation 7% Rendering 5% Parse HTML & CSS 5%
A+Font LoadingNo web fonts (system fonts)PASS
Font Loading
No web fonts (system fonts)
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+Resource CachingAll resources properly cachedPASS
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
A+Asset CompressionAll 1 asset host use brotliPASS
Asset Compression
All 1 asset host use brotli
All 1 asset host use brotli
Info::
www.psicocitta.it serves assets with brotli (assets: 17)
Got: www.psicocitta.it (text/css)
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Server Response Intelligence1 server-response signal(s) detectedPASS
Server Response Intelligence
1 server-response signal(s) detected
1 server-response signal(s) detected
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
APage Weight Inventory25 resources · 173 KB · 63 KB savings availablePASS
Page Weight Inventory
25 resources · 173 KB · 63 KB savings available
25 resources · 173 KB · 63 KB savings available
Info::
Within 1MB page-weight target
Got: 173 KB
Info::
~63 KB of savings available
Warning::
24 third-party resources (100% of weight)
25 resources · 173.5 KiB · 24 third-party Within 1MB page-weight target
JavaScript 47% · 82.1 KiB
Image 34% · 59.3 KiB
CSS 13% · 22.9 KiB
Document 5% · 9.1 KiB
~63.2 KiB of savings available
Remove unused JavaScript: 63.2 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 25 resources | 173.5 KiB | ||||||
Network Waterfall25 requests over 494msINFO
Network Waterfall
25 requests over 494ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization10 images, 25 KB total, 0 KB wastedINFO
Image Optimization
10 images, 25 KB total, 0 KB wasted
Image Optimization Audit
Total Images
10
Total Size
25 KB
8 missing alt text 2 missing dimensions 7 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.