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.
808 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.09 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.035
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.08 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.
1.18 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction31 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
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
APage Weight Budget711 KB transferred, 52 requestsPASS
A+Text CompressionAll text resources are compressedPASS
A+JS Execution Cost466ms total JS executionPASS
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.regjeringen.no/no/id4/ | 234ms | 4ms | 1ms | 3rd |
| https://www.regjeringen.no/dist-web/js/vendor/combined/jquery-combined-scripts.js?v=202604143_190219 | 94ms | 52ms | 4ms | 3rd |
| Unattributable | 83ms | 4ms | 0ms | 3rd |
| https://cdn.matomo.cloud/regjeringen.matomo.cloud/container_G8N8bAjb.js | 54ms | 31ms | 22ms | 3rd |
A+Font Loading1 fonts (13 KB)PASS
Web fonts
1
13 KB total
Render-blocking
0
of 1
Dominant font-display
swap
Most common across fonts
Font loading timeline
- 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 ~4 KB and ~8 ms
AJS Bundles11 scripts, 0 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.regjeringen.no/dist-web/js/bundle-footer-scripts.js?v=202604143_190219 | 5 KB | — | ✓ | 3rd |
| https://www.regjeringen.no/dist-web/js/vendor/modernizr.custom.71379.js?v=202604143_190219 | 4 KB | — | ✓ | 3rd |
| https://www.regjeringen.no/dist-web/js/vendor/combined/jquery-combined-scripts.js?v=202604143_190219 | 39 KB | — | ✗ | 3rd |
| https://www.regjeringen.no/dist-web/js/lightbox-content.js?v=202604143_190219 | 4 KB | — | ✓ | 3rd |
| https://www.regjeringen.no/dist-web/js/cookie-consent.js?v=202604143_190219 | 5 KB | — | ✓ | 3rd |
| https://www.regjeringen.no/dist-web/js/carousel.js?v=202604143_190219 | 3 KB | — | ✓ | 3rd |
| https://www.regjeringen.no/dist-web/js/carousel-current.js?v=202604143_190219 | 15 KB | — | ✗ | 3rd |
| https://js.monitor.azure.com/scripts/b/ai.2.gbl.min.js | 46 KB | — | ✓ | 3rd |
| https://cdn.matomo.cloud/regjeringen.matomo.cloud/container_G8N8bAjb.js | 63 KB | — | ✓ | 3rd |
| https://www.regjeringen.no/dist-web/js/bundle-main.js | 8 KB | — | ✓ | 3rd |
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
APage Weight Inventory52 resources · 711 KB · 0 KB savings availablePASS
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 52 resources | 710.7 KiB | ||||||
Network Waterfall52 requests over 1207msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.regjeringen.no www.regjeringen.no | Other | 234ms | 15 KB | — | kr29/mo | Costly |
www.regjeringen.no www.regjeringen.no | Other | 94ms | 39 KB | — | kr12/mo | Optional |
Unattributable Unattributable | Other | 83ms | 0 KB | — | kr10/mo | Optional |
Matomo cdn.matomo.cloud | Analytics | 54ms | 63 KB | — | kr7/mo | Optional |
These scripts may cost more than they're worth
- www.regjeringen.no adds 234ms and costs ~kr29/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
www.regjeringen.no takes 234ms 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