Performance
· 22 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.
791 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.23 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
140 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.052
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
913 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.
3.15 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction20 scripts, 394 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-K6YJ7HYPQM&cx=c>m=4e6781 | 172 KB | 65 KB (38%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-1234&cx=c>m=4e6781 | 143 KB | 65 KB (45%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-703689512&cx=c>m=4e6781 | 150 KB | 64 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WR5DV3R>m_auth=K0UmcykQv9-9gRFBKufsNg>m_preview=env-1>m_cookies_win=x | 184 KB | 63 KB (34%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MTA2MWE1OWMwMQ.js | 114 KB | 56 KB (49%) | ✓ | 3rd |
| https://cdn.iubenda.com/cookie_solution/iubenda_cs/1.100.0/core-it.js | 111 KB | 55 KB (50%) | ✓ | 3rd |
| https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js | 44 KB | 25 KB (58%) | ✓ | 3rd |
| https://cdn.prod.website-files.com/6340630bc206e3e9f1770198/js/unobravo-staging.114b2c7f.5f0f6f407efb275e.js | 1 KB | — | ✓ | 3rd |
| https://cdn.iubenda.com/cs/stable/iubenda_cs.js | 2 KB | — | ✓ | 3rd |
| https://widget.trustpilot.com/bootstrap/v5/tp.widget.bootstrap.min.js | 8 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
DPage Weight InventoryAction80 resources · 1.8 MB · 394 KB savings availableFIX
~393.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 80 resources | 1.8 MiB | ||||||
CPage Weight BudgetAction1.8 MB transferred, 80 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
CImage OptimizationAction36 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Performance issues directly impact user engagement and conversion rates.
CJS Execution CostAction1685ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.unobravo.com/ | 424ms | 38ms | 3ms | 3rd |
| https://cdn.prod.website-files.com/6340630bc206e3e9f1770198/js/unobravo-staging.schunk.96734fea22672569.js | 336ms | 37ms | 16ms | 3rd |
| Unattributable | 190ms | 5ms | 0ms | 1st |
| https://www.googletagmanager.com/gtm.js?id=GTM-WR5DV3R>m_auth=K0UmcykQv9-9gRFBKufsNg>m_preview=env-1>m_cookies_win=x | 164ms | 131ms | 30ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-K6YJ7HYPQM&cx=c>m=4e6781 | 162ms | 140ms | 20ms | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MTA2MWE1OWMwMQ.js | 129ms | 95ms | 16ms | 3rd |
| https://cdn.iubenda.com/cookie_solution/iubenda_cs/1.100.0/core-it.js | 89ms | 71ms | 14ms | 3rd |
| https://cdn.prod.website-files.com/6340630bc206e3e9f1770198/js/unobravo-staging.114b2c7f.5f0f6f407efb275e.js | 69ms | 69ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-703689512&cx=c>m=4e6781 | 68ms | 52ms | 16ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-1234&cx=c>m=4e6781 | 54ms | 39ms | 14ms | 3rd |
CCompression AlgorithmActionMain response served uncompressedREVIEW
BMain HTML Cache-ControlCache-Control present but without max-ageREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP CachingprivateREVIEW
private
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (117 KB)PASS
Web fonts
5
117 KB total
Render-blocking
0
of 5
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)
Fixing the unchecked items could save ~1 KB and ~2 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
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
Network Waterfall80 requests over 2411msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.unobravo.com www.unobravo.com | Other | 424ms | 59 KB | — | €5/mo | Costly |
cdn.prod.website-files.com cdn.prod.website-files.com | Other | 336ms | 63 KB | — | €4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 164ms | 184 KB | 34% | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 162ms | 172 KB | 38% | €2/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 129ms | 114 KB | 49% | €1/mo | Optional |
Iubenda cdn.iubenda.com | Consent | 89ms | 111 KB | 50% | €1/mo | Essential |
cdn.prod.website-files.com cdn.prod.website-files.com | Other | 69ms | 1 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 68ms | 150 KB | 43% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 54ms | 143 KB | 45% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.unobravo.com adds 424ms and costs ~€5/month
- cdn.prod.website-files.com adds 336ms and costs ~€4/month
89% 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.unobravo.com takes 424ms 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
cdn.prod.website-files.com takes 336ms 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
50% of Iubenda'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 Optimization146 images, 0 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
146
Total Size
0 KB
Oversized
1