Performance
· 15 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.
1.52 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.42 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
121 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.
2.02 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.
3.51 s
Page Load Progression
FPage Weight BudgetAction3.2 MB transferred, 90 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DPage Weight InventoryAction90 resources · 3.2 MB · 205 KB savings availableFIX
~205.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 90 resources | 3.2 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization34 images, 0 KB saveableREVIEW
BJS Execution Cost837ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-T6PZKL | 285ms | 253ms | 13ms | 3rd |
| https://www.statista.com/ | 239ms | 5ms | 1ms | 3rd |
| Unattributable | 139ms | 2ms | 0ms | 3rd |
| https://www.statista.com/dist/navigationDesktop.a44c42.js | 98ms | 80ms | 0ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js | 76ms | 50ms | 9ms | 3rd |
CJS BundlesAction25 scripts, 205 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-T6PZKL | 192 KB | 71 KB (37%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js | 128 KB | 62 KB (48%) | ✓ | 3rd |
| https://www.statista.com/dist/vendor.75e9c7.js | 78 KB | 30 KB (39%) | ✓ | 3rd |
| https://www.statista.com/dist/main.7eafb9.js | 29 KB | 22 KB (76%) | ✓ | 3rd |
| https://www.statista.com/dist/home.fe9603.js | 30 KB | 21 KB (73%) | ✓ | 3rd |
| https://www.statista.com/dist/navigationDesktop.a44c42.js | 4 KB | — | ✓ | 3rd |
| https://www.statista.com/dist/newsFeed.bbfc7c.js | 8 KB | — | ✓ | 3rd |
| https://www.statista.com/mtam/init.js?mtamDev=false&platformVersion=3.5&mtamScenario=default | 58 KB | — | ✓ | 3rd |
| https://cdn.cookielaw.org/consent/acb8c41d-343d-47fb-b0bc-ac829c6b6853/otSDKStub.js | 10 KB | — | ✓ | 3rd |
| https://www.statista.com/dist/966.236f98.js | 5 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
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 Loading4 fonts (59 KB)PASS
Web fonts
4
59 KB total
Render-blocking
0
of 4
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
Network Waterfall90 requests over 2002msINFO
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 | 285ms | 192 KB | 37% | €3/mo | Costly |
www.statista.com www.statista.com | Other | 239ms | 91 KB | — | €3/mo | Costly |
Unattributable Unattributable | Other | 139ms | 0 KB | — | €2/mo | Optional |
www.statista.com www.statista.com | Other | 98ms | 4 KB | — | €1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 76ms | 128 KB | 48% | €1/mo | Essential |
These scripts may cost more than they're worth
- Google Tag Manager adds 285ms and costs ~€3/month
- www.statista.com adds 239ms and costs ~€3/month
100% 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
Google Tag Manager takes 285ms 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.statista.com takes 239ms 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