Performance
· 17 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.
2.27 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
29.64 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.55 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
8.49 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.
29.97 s
Page Load Progression
FPage Weight BudgetAction6.8 MB transferred, 89 requestsFIX
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
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
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 ImpactAction79% third-party, 0 ms blockingFIX
FJS Execution CostAction8155ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/pages/_app-83f334ac30155340.js | 2953ms | 2641ms | 110ms | 3rd |
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/framework-826237e25a5a04e8.js | 1749ms | 1592ms | 29ms | 3rd |
| Unattributable | 1136ms | 80ms | 0ms | 3rd |
| https://mubi.com/en/nl | 582ms | 8ms | 1ms | 1st |
| https://js.stripe.com/basil/stripe.js | 491ms | 326ms | 164ms | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 491ms | 323ms | 143ms | 3rd |
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/main-5b663d0de58ed695.js | 201ms | 179ms | 21ms | 3rd |
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/pages/splash-9abaaf043d98f309.js | 158ms | 156ms | 2ms | 3rd |
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/InitialiseDeviceDetectionContainer.9cb4191f5ddbb69c.js | 130ms | 127ms | 1ms | 3rd |
| https://cdn-cookieyes.com/client_data/557d88e3cc18545818539070/banner.js | 109ms | 82ms | 7ms | 3rd |
Showing top 10 of 12 scripts
FJS BundlesAction48 scripts, 732 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://js.stripe.com/basil/stripe.js | 226 KB | 164 KB (73%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 0 KB | 157 KB (43%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 157 KB (43%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 157 KB (43%) | ✓ | 3rd |
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/pages/_app-83f334ac30155340.js | 192 KB | 72 KB (41%) | ✓ | 3rd |
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/43863.65818491bf1a3c9d.js | 31 KB | 26 KB (85%) | ✓ | 3rd |
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/13327-64655ec2ea0b1bd9.js | 4 KB | — | ✓ | 3rd |
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/19883-8ac6c78fa55a9186.js | 13 KB | — | ✓ | 3rd |
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/66346-716153623571802b.js | 4 KB | — | ✓ | 3rd |
| https://assets.mubicdn.net/fe/2026.04.22.1517-eeef4ce/_next/static/chunks/23059-a5d076dddd7e0919.js | 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 InventoryAction89 resources · 6.8 MB · 732 KB savings availableFIX
~732.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 89 resources | 6.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization4 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
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 Loading5 fonts (344 KB)PASS
Web fonts
5
344 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)
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall89 requests over 4562msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
assets.mubicdn.net assets.mubicdn.net | Other | 2953ms | 192 KB | 41% | $39/mo | Costly |
assets.mubicdn.net assets.mubicdn.net | Other | 1749ms | 53 KB | — | $23/mo | Costly |
Unattributable Unattributable | Other | 1136ms | 0 KB | — | $15/mo | Costly |
Stripe js.stripe.com | Payment | 491ms | 226 KB | 73% | $7/mo | Essential |
www.gstatic.com www.gstatic.com | Other | 491ms | 0 KB | 43% | $7/mo | Costly |
assets.mubicdn.net assets.mubicdn.net | Other | 201ms | 37 KB | — | $3/mo | Costly |
assets.mubicdn.net assets.mubicdn.net | Other | 158ms | 4 KB | — | $2/mo | Optional |
assets.mubicdn.net assets.mubicdn.net | Other | 130ms | 1 KB | — | $2/mo | Optional |
cdn-cookieyes.com cdn-cookieyes.com | Other | 109ms | 8 KB | — | $1/mo | Optional |
assets.mubicdn.net assets.mubicdn.net | Other | 94ms | 31 KB | 85% | $1/mo | Optional |
cdn-cookieyes.com cdn-cookieyes.com | Other | 59ms | 9 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- assets.mubicdn.net adds 2953ms and costs ~$39/month
- assets.mubicdn.net adds 1749ms and costs ~$23/month
- Unattributable adds 1136ms and costs ~$15/month
- www.gstatic.com adds 491ms and costs ~$7/month
- assets.mubicdn.net adds 201ms and costs ~$3/month
93% 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
assets.mubicdn.net takes 2953ms 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
assets.mubicdn.net takes 1749ms 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
Unattributable takes 1136ms 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 Stripe'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
www.gstatic.com takes 491ms 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
assets.mubicdn.net takes 201ms 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
85% of assets.mubicdn.net'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