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.
3.86 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
10.55 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
848 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.097
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
5.73 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.
21.15 s
Page Load Progression
FPage Weight BudgetAction2.8 MB transferred, 198 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
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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction6815ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.vg.no/ | 1610ms | 255ms | 38ms | 3rd |
| Unattributable | 1527ms | 315ms | 0ms | 3rd |
| https://esm.schibsted.tech/react-dom@19.2.3/es2020/client.mjs | 761ms | 530ms | 1ms | 3rd |
| https://cmp.vg.no/Notice.8f529.js | 646ms | 501ms | 44ms | 3rd |
| https://esm.schibsted.tech/@sentry/browser@10.46.0/es2022/browser.mjs | 560ms | 211ms | 0ms | 3rd |
| https://cdn.stream.schibsted.media/player/extras/latest/player-plugin-skin-vgtv2-latest.js | 313ms | 172ms | 136ms | 3rd |
| https://cdn.stream.schibsted.media/jw/jwplayer-8.34.5/provider.html5.js | 241ms | 212ms | 5ms | 3rd |
| https://log.medietall.no/analytics.v2.js | 210ms | 182ms | 1ms | 3rd |
| https://cdn.stream.schibsted.media/jw/jwplayer-8.34.5/jwplayer.js | 179ms | 164ms | 15ms | 3rd |
| https://cmp.vg.no/unified/wrapperMessagingWithoutDetection.js | 169ms | 132ms | 17ms | 3rd |
Showing top 10 of 17 scripts
FJS BundlesAction113 scripts, 539 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.stream.schibsted.media/player/extras/latest/player-plugin-skin-vgtv2-latest.js | 266 KB | 219 KB (82%) | ✓ | 3rd |
| https://cmp.vg.no/Notice.8f529.js | 91 KB | 61 KB (67%) | ✓ | 3rd |
| https://esm.schibsted.tech/@sentry/core@10.46.0/es2022/core.mjs | 86 KB | 61 KB (71%) | ✓ | 3rd |
| https://esm.schibsted.tech/@sentry-internal/replay@10.46.0/es2022/replay.mjs | 54 KB | 46 KB (87%) | ✓ | 3rd |
| https://cdn.stream.schibsted.media/player/extras/latest/player.next.min.bundled-latest.js | 73 KB | 40 KB (55%) | ✓ | 3rd |
| https://www.vg.no/front-page-assets/_astro/InitializeAdverts.astro_astro_type_script_index_0_lang.B8T0_W5C.js | 46 KB | 37 KB (81%) | ✓ | 3rd |
| https://esm.schibsted.tech/react-dom@19.2.3/es2020/client.mjs | 74 KB | 28 KB (38%) | ✓ | 3rd |
| https://ssl.p.jwpcdn.com/player/v/8.34.5/vast.js | 30 KB | 25 KB (84%) | ✓ | 3rd |
| https://cdn.stream.schibsted.media/jw/jwplayer-8.34.5/jwplayer.core.js | 43 KB | 22 KB (51%) | ✓ | 3rd |
| https://esm.schibsted.tech/tiny-emitter@2.1.0/es2022/tiny-emitter.mjs | 1 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 InventoryAction198 resources · 2.8 MB · 539 KB savings availableFIX
~539.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 198 resources | 2.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization29 images, 0 KB saveableREVIEW
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 Loading6 fonts (423 KB)PASS
Web fonts
6
423 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~76 KB and ~152 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints7 hints, 0 missing preconnectsPASS
Current Resource Hints
7 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall198 requests over 4419msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.vg.no www.vg.no | Other | 1610ms | 56 KB | — | kr199/mo | Costly |
Unattributable Unattributable | Other | 1527ms | 0 KB | — | kr188/mo | Costly |
esm.schibsted.tech esm.schibsted.tech | Other | 761ms | 74 KB | 38% | kr94/mo | Costly |
cmp.vg.no cmp.vg.no | Other | 646ms | 91 KB | 67% | kr80/mo | Costly |
esm.schibsted.tech esm.schibsted.tech | Other | 560ms | 33 KB | — | kr69/mo | Costly |
cdn.stream.schibsted.media cdn.stream.schibsted.media | Other | 313ms | 266 KB | 82% | kr39/mo | Costly |
cdn.stream.schibsted.media cdn.stream.schibsted.media | Other | 241ms | 15 KB | — | kr30/mo | Costly |
log.medietall.no log.medietall.no | Other | 210ms | 25 KB | — | kr26/mo | Costly |
cdn.stream.schibsted.media cdn.stream.schibsted.media | Other | 179ms | 42 KB | — | kr22/mo | Optional |
cmp.vg.no cmp.vg.no | Other | 169ms | 40 KB | — | kr21/mo | Optional |
www.vg.no www.vg.no | Other | 159ms | 34 KB | — | kr20/mo | Optional |
adsdk.microsoft.com adsdk.microsoft.com | Other | 107ms | 52 KB | — | kr13/mo | Optional |
www.vg.no www.vg.no | Other | 100ms | 10 KB | — | kr12/mo | Optional |
cmp.vg.no cmp.vg.no | Other | 68ms | 29 KB | — | kr8/mo | Optional |
cdn.stream.schibsted.media cdn.stream.schibsted.media | Other | 57ms | 43 KB | 51% | kr7/mo | Optional |
www.vg.no www.vg.no | Other | 57ms | 8 KB | — | kr7/mo | Optional |
cdn.stream.schibsted.media cdn.stream.schibsted.media | Other | 51ms | 73 KB | 55% | kr6/mo | Optional |
These scripts may cost more than they're worth
- www.vg.no adds 1610ms and costs ~kr199/month
- Unattributable adds 1527ms and costs ~kr188/month
- esm.schibsted.tech adds 761ms and costs ~kr94/month
- cmp.vg.no adds 646ms and costs ~kr80/month
- esm.schibsted.tech adds 560ms and costs ~kr69/month
- cdn.stream.schibsted.media adds 313ms and costs ~kr39/month
- cdn.stream.schibsted.media adds 241ms and costs ~kr30/month
- log.medietall.no adds 210ms and costs ~kr26/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.vg.no takes 1610ms 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 1527ms 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
esm.schibsted.tech takes 761ms 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
cmp.vg.no takes 646ms 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
67% of cmp.vg.no'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
esm.schibsted.tech takes 560ms 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.stream.schibsted.media takes 313ms 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
82% of cdn.stream.schibsted.media'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
cdn.stream.schibsted.media takes 241ms 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
log.medietall.no takes 210ms 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
51% of cdn.stream.schibsted.media'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
55% of cdn.stream.schibsted.media'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