Performance
· 26 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.
6.75 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
27.81 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
220 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.
6.75 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.
27.81 s
Page Load Progression
FPage Weight BudgetAction5.6 MB transferred, 95 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
Source: web.dev
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction3720ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.gstatic.com/recaptcha/releases/rL1ELiQAg1kPezz6_H9hTZ_i/recaptcha__en.js | 1169ms | 1041ms | 98ms | 3rd |
| https://www.psy.it/ | 705ms | 49ms | 8ms | 3rd |
| https://www.psy.it/wp-content/plugins/smart-slider-3/Public/SmartSlider3/Application/Frontend/Assets/dist/n2.min.js?ver=c9342566 | 703ms | 236ms | 4ms | 3rd |
| Unattributable | 524ms | 17ms | 0ms | 1st |
| https://cdn.userway.org/widgetapp/2026-07-07-10-43-48/widget_app_base_1783421028734.js | 145ms | 117ms | 20ms | 3rd |
| https://www.psy.it/wp-content/plugins/smart-slider-3/Public/SmartSlider3/Application/Frontend/Assets/dist/smartslider-frontend.min.js?ver=c9342566 | 102ms | 68ms | 14ms | 3rd |
| https://www.psy.it/wp-content/themes/design-italia/lib/bootstrap-italia/css/bootstrap-italia.min.css.map?ver=6.8.1 | 102ms | 0ms | 0ms | 3rd |
| https://ingestion.webanalytics.italia.it/matomo.js | 99ms | 89ms | 7ms | 3rd |
| https://www.psy.it/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 96ms | 61ms | 8ms | 3rd |
| https://www.psy.it/wp-content/themes/design-italia/lib/bootstrap-italia/css/bootstrap-italia.min.css?ver=6.8.1 | 75ms | 0ms | 0ms | 3rd |
FJS BundlesAction25 scripts, 557 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.gstatic.com/recaptcha/releases/rL1ELiQAg1kPezz6_H9hTZ_i/recaptcha__en.js | 0 KB | 164 KB (44%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/rL1ELiQAg1kPezz6_H9hTZ_i/recaptcha__en.js | 374 KB | 164 KB (44%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/rL1ELiQAg1kPezz6_H9hTZ_i/recaptcha__en.js | 375 KB | 164 KB (44%) | ✓ | 3rd |
| https://ingestion.webanalytics.italia.it/matomo.js | 66 KB | 36 KB (57%) | ✓ | 3rd |
| https://cdn.userway.org/widgetapp/2026-07-07-10-43-48/widget_app_base_1783421028734.js | 47 KB | 27 KB (58%) | ✓ | 3rd |
| https://www.psy.it/wp-content/plugins/smart-slider-3/Public/SmartSlider3/Application/Frontend/Assets/dist/n2.min.js?ver=c9342566 | 12 KB | — | ✓ | 3rd |
| https://www.psy.it/wp-content/plugins/smart-slider-3/Public/SmartSlider3/Slider/SliderType/Simple/Assets/dist/ss-simple.min.js?ver=c9342566 | 3 KB | — | ✓ | 3rd |
| https://www.psy.it/wp-content/plugins/contact-form-7/includes/js/index.js?ver=6.1.5 | 4 KB | — | ✓ | 3rd |
| https://www.google.com/recaptcha/api.js?render=6LekV_oqAAAAAB9RBAEqhUZBwQx1i_MLDNeKIlzw&ver=3.0 | 1 KB | — | ✓ | 3rd |
| https://www.psy.it/wp-includes/js/dist/vendor/wp-polyfill.min.js?ver=3.15.0 | 14 KB | — | ✓ | 3rd |
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
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
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
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
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
FPage Weight InventoryAction95 resources · 5.6 MB · 557 KB savings availableFIX
~556.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 95 resources | 5.6 MiB | ||||||
BImage Optimization15 images, 0 KB saveableREVIEW
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BCompression AlgorithmMain response uses gzip; brotli would be ~20% smallerREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
BHTTP Cachingno-cacheREVIEW
no-cache
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading9 fonts (322 KB)PASS
Web fonts
9
322 KB total
Render-blocking
0
of 9
Dominant font-display
swap
Most common across fonts
Font loading timeline
- 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 ~77 KB and ~154 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-cache -- safe revalidate-on-request policyPASS
AServer Response Intelligence2 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: OVHcloud
Network Waterfall95 requests over 3277msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.gstatic.com www.gstatic.com | Other | 1169ms | 0 KB | 44% | €13/mo | Costly |
www.psy.it www.psy.it | Other | 705ms | 19 KB | — | €8/mo | Costly |
www.psy.it www.psy.it | Other | 703ms | 12 KB | — | €8/mo | Costly |
cdn.userway.org cdn.userway.org | Other | 145ms | 47 KB | 58% | €2/mo | Optional |
www.psy.it www.psy.it | Other | 102ms | 25 KB | — | €1/mo | Optional |
www.psy.it www.psy.it | Other | 102ms | 192 KB | — | €1/mo | Optional |
ingestion.webanalytics.italia.it ingestion.webanalytics.italia.it | Other | 99ms | 66 KB | 57% | €1/mo | Optional |
www.psy.it www.psy.it | Other | 96ms | 29 KB | — | €1/mo | Optional |
www.psy.it www.psy.it | Other | 75ms | 66 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.gstatic.com adds 1169ms and costs ~€13/month
- www.psy.it adds 705ms and costs ~€8/month
- www.psy.it adds 703ms and costs ~€8/month
86% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.
Learn more ▾ ▴
Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.
Source: web.dev
www.gstatic.com takes 1169ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.psy.it takes 705ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.psy.it takes 703ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
58% of cdn.userway.org's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
57% of ingestion.webanalytics.italia.it's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Image Optimization21 images, 3830 KB total, 3027 KB wastedINFO
Image Optimization Audit
Total Images
21
Total Size
3830 KB
Oversized
5
Wasted
3027 KB