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.
2.85 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.98 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
91 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.179
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.07 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.
6.01 s
Page Load Progression
DPage Weight BudgetAction2.5 MB transferred, 59 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DPage Weight InventoryAction59 resources · 2.5 MB · 119 KB savings availableFIX
~119.1 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 59 resources | 2.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization13 images, 0 KB saveableREVIEW
CJS Execution CostAction1262ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.fattoasezze.it/ | 485ms | 7ms | 6ms | 3rd |
| Unattributable | 330ms | 6ms | 0ms | 1st |
| https://www.fattoasezze.it/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 250ms | 194ms | 8ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-TFNX4YHL7T | 197ms | 167ms | 28ms | 3rd |
BJS Bundles20 scripts, 119 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-TFNX4YHL7T | 147 KB | 67 KB (46%) | ✓ | 3rd |
| https://www.fattoasezze.it/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 86 KB | 30 KB (35%) | ✓ | 3rd |
| https://www.fattoasezze.it/wp-content/themes/jatra/assets/lib/slick/js/slick.min.js?ver=7.0.2 | 42 KB | 22 KB (52%) | ✓ | 3rd |
| https://www.fattoasezze.it/wp-content/plugins/ninja-gdpr-compliance/assets/home/js/data-access.js?ver=2.7.5 | 1 KB | — | ✓ | 3rd |
| https://www.fattoasezze.it/wp-content/themes/jatra/assets/lib/custom/js/ajax.js?ver=7.0.2 | 2 KB | — | ✓ | 3rd |
| https://www.fattoasezze.it/wp-content/plugins/ninja-gdpr-compliance/assets/home/js/term.js?ver=2.7.5 | 1 KB | — | ✓ | 3rd |
| https://www.fattoasezze.it/wp-content/plugins/ninja-gdpr-compliance/assets/home/js/data-rectification.js?ver=2.7.5 | 1 KB | — | ✓ | 3rd |
| https://www.fattoasezze.it/wp-content/plugins/ninja-gdpr-compliance/assets/home/js/app.js?ver=2.7.5 | 1 KB | — | ✓ | 3rd |
| https://www.fattoasezze.it/wp-includes/js/imagesloaded.min.js?ver=5.0.0 | 6 KB | — | ✓ | 3rd |
| https://www.fattoasezze.it/wp-content/themes/jatra/assets/lib/magnific-popup/jquery.magnific-popup.min.js?ver=7.0.2 | 20 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
CCompression AlgorithmActionMain response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BJavaScript Blocking1 JS blocking issue(s) detectedREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading2 fonts (65 KB)PASS
Web fonts
2
65 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+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints2 hints, 0 missing preconnectsPASS
Current Resource Hints
2 resource hints configured
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 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
Network Waterfall59 requests over 1547msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.fattoasezze.it www.fattoasezze.it | Other | 485ms | 19 KB | — | €5/mo | Costly |
www.fattoasezze.it www.fattoasezze.it | Other | 250ms | 86 KB | 35% | €3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 197ms | 147 KB | 46% | €2/mo | Optional |
These scripts may cost more than they're worth
- www.fattoasezze.it adds 485ms and costs ~€5/month
- www.fattoasezze.it adds 250ms and costs ~€3/month
74% 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.fattoasezze.it takes 485ms 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.fattoasezze.it takes 250ms 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
Image Optimization2 images, 113 KB total, 106 KB wastedINFO
Image Optimization Audit
Total Images
2
Total Size
113 KB
Oversized
1
Wasted
106 KB