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.
1.24 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.95 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.55 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.033
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.13 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.
12.44 s
Page Load Progression
DThird-Party ImpactAction98% third-party, 0 ms blockingFIX
FJS Execution CostAction5593ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://iol-website.italiaonline.it/script/modules/iol-analytics.min.js | 1949ms | 1933ms | 7ms | 3rd |
| https://artigianmobiliremanzacco.cfd/ | 1553ms | 56ms | 13ms | 1st |
| Unattributable | 544ms | 23ms | 0ms | 1st |
| https://consent.cookiebot.com/uc.js | 455ms | 393ms | 27ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-23LNSPS7Q6 | 399ms | 321ms | 75ms | 3rd |
| https://static.cdn-website.com/mnlt/production/6669/_dm/s/rt/dist/scripts/d-js-one-runtime-unified-mobile.min.js | 294ms | 189ms | 81ms | 3rd |
| https://static.cdn-website.com/mnlt/production/6669/editor/apps/modules/runtime/913.111ea11b02d950f722ed.js | 111ms | 98ms | 10ms | 3rd |
| https://static.cdn-website.com/mnlt/production/6669/editor/apps/modules/runtime/389.08c3f004bc3ca0f1d492.js | 97ms | 65ms | 4ms | 3rd |
| https://static.cdn-website.com/mnlt/production/6669/editor/apps/modules/runtime/442.ba347fbfbf3c05bc26cf.js | 74ms | 62ms | 11ms | 3rd |
| https://static.cdn-website.com/libs/jquery/jquery-3.7.0.min.js | 62ms | 44ms | 12ms | 3rd |
Showing top 10 of 11 scripts
DPage Weight InventoryAction99 resources · 1.8 MB · 142 KB savings availableFIX
~142.1 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 99 resources | 1.8 MiB | ||||||
CPage Weight BudgetAction1.8 MB transferred, 99 requestsREVIEW
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
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
BImage Optimization24 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Performance issues directly impact user engagement and conversion rates.
BJS Bundles43 scripts, 142 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-23LNSPS7Q6 | 181 KB | 73 KB (40%) | ✓ | 3rd |
| https://static.cdn-website.com/mnlt/production/6669/_dm/s/rt/dist/scripts/d-js-one-runtime-unified-mobile.min.js | 96 KB | 69 KB (73%) | ✓ | 3rd |
| https://static.cdn-website.com/mnlt/production/6669/editor/apps/modules/runtime/913.111ea11b02d950f722ed.js | 20 KB | — | ✓ | 3rd |
| https://static.cdn-website.com/mnlt/production/6669/editor/apps/modules/runtime/930.e6efc422c901c8564b01.js | 1 KB | — | ✓ | 3rd |
| https://static.cdn-website.com/libs/jquery/jquery-3.7.0.min.js | 31 KB | — | ✓ | 3rd |
| https://static.cdn-website.com/mnlt/production/6669/_dm/s/rt/dist/scripts/d-js-jquery-migrate.min.js | 5 KB | — | ✓ | 3rd |
| https://d2e3ebjq9bfloz.cloudfront.net/Partners/IOL/scripts/jquery.iol.custom.min.js | 0 KB | — | ✓ | 3rd |
| https://iol-website.italiaonline.it/script/iol-body-np.js | 1 KB | — | ✓ | 3rd |
| https://iol-website.italiaonline.it/script/iol-body.js | 1 KB | — | ✓ | 3rd |
| https://consentcdn.cookiebot.com/consentconfig/a854b7ba-7720-4bde-a5a6-f8250877a176/artigianmobiliremanzacco.cfd/configuration.js | 0 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
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
BCSS Performance Depth2 CSS depth issue(s) detectedREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingno-cache, must-revalidateREVIEW
no-cache, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading9 fonts (272 KB)PASS
Web fonts
9
272 KB total
Render-blocking
0
of 9
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
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 ~30 KB and ~60 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints3 hints, 0 missing preconnectsPASS
Current Resource Hints
3 resource hints configured
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://irp.cdn-website.com (preconnect+preconnect).
Performance issues directly impact user engagement and conversion rates.
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Compression AlgorithmMain response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-cache -- safe revalidate-on-request policyPASS
A+Server-Timing Observability4 Server-Timing entries advertisedPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall99 requests over 7072msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
iol-website.italiaonline.it iol-website.italiaonline.it | Other | 1949ms | 13 KB | — | €21/mo | Costly |
consent.cookiebot.com consent.cookiebot.com | Other | 455ms | 37 KB | — | €5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 399ms | 181 KB | 40% | €4/mo | Costly |
static.cdn-website.com static.cdn-website.com | Other | 294ms | 96 KB | 73% | €3/mo | Costly |
static.cdn-website.com static.cdn-website.com | Other | 111ms | 20 KB | — | €1/mo | Optional |
static.cdn-website.com static.cdn-website.com | Other | 97ms | 12 KB | — | €1/mo | Optional |
static.cdn-website.com static.cdn-website.com | Other | 74ms | 22 KB | — | €1/mo | Optional |
static.cdn-website.com static.cdn-website.com | Other | 62ms | 31 KB | — | €1/mo | Optional |
d32hwlnfiv2gyn.cloudfront.net d32hwlnfiv2gyn.cloudfront.net | Other | 56ms | 18 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- iol-website.italiaonline.it adds 1949ms and costs ~€21/month
- consent.cookiebot.com adds 455ms and costs ~€5/month
- Google Tag Manager adds 399ms and costs ~€4/month
- static.cdn-website.com adds 294ms and costs ~€3/month
62% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
iol-website.italiaonline.it takes 1949ms 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
consent.cookiebot.com takes 455ms 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
Google Tag Manager takes 399ms 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
static.cdn-website.com takes 294ms 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
73% of static.cdn-website.com'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 Optimization13 images, 0 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
13
Total Size
0 KB
Oversized
1