Performance
· 23 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.
429 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.63 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.15 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.
4.79 s
Page Load Progression
FPage Weight BudgetAction6.4 MB transferred, 150 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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction95% third-party, 0 ms blockingFIX
DPage Weight InventoryAction150 resources · 6.4 MB · 235 KB savings availableFIX
~235.1 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 150 resources | 6.4 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
private, no-cache, no-store, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
BImage Optimization90 images, 0 KB saveableREVIEW
BJS Execution Cost790ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 201ms | 28ms | 0ms | 1st |
| https://socialwebtv.it/ | 193ms | 14ms | 5ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-MTP6G1QZM0 | 100ms | 80ms | 18ms | 3rd |
| https://socialwebtv.it/_next/static/chunks/23-05c6e876bf0a7dae.js | 95ms | 85ms | 3ms | 1st |
| https://www.googletagmanager.com/gtm.js?id=GTM-PL4L9T6K | 85ms | 76ms | 9ms | 3rd |
| https://socialwebtv.it/_next/static/chunks/fd9d1056-32262c1ad6585ac8.js | 60ms | 55ms | 3ms | 1st |
| https://connect.facebook.net/en_US/fbevents.js | 55ms | 25ms | 24ms | 3rd |
CJS BundlesAction16 scripts, 235 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-MTP6G1QZM0 | 194 KB | 78 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PL4L9T6K | 130 KB | 65 KB (50%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 112 KB | 55 KB (49%) | ✓ | 3rd |
| https://socialwebtv.it/_next/static/chunks/849-69ac87bc4e462be4.js | 52 KB | 37 KB (72%) | ✓ | 1st |
| https://socialwebtv.it/_next/static/chunks/main-app-f73cdb3bce740b12.js | 1 KB | — | ✓ | 1st |
| https://socialwebtv.it/_next/static/chunks/138-ba08f4f532969ca6.js | 7 KB | — | ✓ | 1st |
| https://socialwebtv.it/_next/static/chunks/app/layout-8a54c1c0fe84a1fa.js | 4 KB | — | ✓ | 1st |
| https://socialwebtv.it/_next/static/chunks/44530001-d85e2a39e6dbc43a.js | 14 KB | — | ✓ | 1st |
| https://socialwebtv.it/_next/static/chunks/23-05c6e876bf0a7dae.js | 32 KB | — | ✓ | 1st |
| https://socialwebtv.it/_next/static/chunks/986-579dbefdffaffd3f.js | 5 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
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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
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 LoadingNo web fonts (system fonts)PASS
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Document CompressionDocument response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall150 requests over 2831msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 100ms | 194 KB | 40% | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 85ms | 130 KB | 50% | €1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 55ms | 112 KB | 49% | €1/mo | Optional |
Image Optimization91 images, 15 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
91
Total Size
15 KB
Oversized
10