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.
1.42 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.96 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
9 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.096
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.93 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.
4.12 s
Page Load Progression
DPage Weight BudgetAction2.5 MB transferred, 190 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 BundlesAction116 scripts, 635 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://hgc-cf-cache-1.svonm.com/hd-main.js?cache=EytuXLEHKl | 67 KB | 54 KB (81%) | ✓ | 3rd |
| https://esm.schibsted.tech/@sentry-internal/replay@10.46.0/es2022/replay.mjs | 54 KB | 46 KB (87%) | ✓ | 3rd |
| https://adsdk.microsoft.com/ast/ast.js | 52 KB | 44 KB (84%) | ✓ | 3rd |
| https://cdn.stream.schibsted.media/player/extras/latest/player.next.min.bundled-latest.js | 73 KB | 38 KB (52%) | ✓ | 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 |
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 InventoryAction190 resources · 2.5 MB · 635 KB savings availableFIX
~635.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 190 resources | 2.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization13 images, 0 KB saveableREVIEW
CJS Execution CostAction1435ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.vg.no/ | 346ms | 90ms | 5ms | 3rd |
| Unattributable | 338ms | 64ms | 0ms | 3rd |
| https://cmp.vg.no/Notice.8f529.js | 151ms | 118ms | 11ms | 3rd |
| https://esm.schibsted.tech/react-dom@19.2.3/es2020/client.mjs | 147ms | 108ms | 0ms | 3rd |
| https://esm.schibsted.tech/@sentry/browser@10.46.0/es2022/browser.mjs | 138ms | 59ms | 0ms | 3rd |
| https://cdn.stream.schibsted.media/player/extras/latest/player-plugin-skin-vgtv2-latest.js | 84ms | 45ms | 35ms | 3rd |
| https://hgc-cf-cache-1.svonm.com/hd-main.js?cache=EytuXLEHKl | 63ms | 52ms | 7ms | 3rd |
| https://ssl.p.jwpcdn.com/player/v/8.34.5/vast.js | 61ms | 55ms | 3ms | 3rd |
| https://cmp.vg.no/unified/wrapperMessagingWithoutDetection.js | 54ms | 44ms | 4ms | 3rd |
| https://cdn.stream.schibsted.media/jw/jwplayer-8.34.5/jwplayer.js | 52ms | 42ms | 4ms | 3rd |
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 HintsNo optimization neededPASS
Network Waterfall190 requests over 5322msINFO
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 | 346ms | 46 KB | — | kr43/mo | Costly |
Unattributable Unattributable | Other | 338ms | 0 KB | — | kr42/mo | Costly |
cmp.vg.no cmp.vg.no | Other | 151ms | 91 KB | 67% | kr19/mo | Optional |
esm.schibsted.tech esm.schibsted.tech | Other | 147ms | 74 KB | 38% | kr18/mo | Optional |
esm.schibsted.tech esm.schibsted.tech | Other | 138ms | 33 KB | — | kr17/mo | Optional |
cdn.stream.schibsted.media cdn.stream.schibsted.media | Other | 84ms | 266 KB | 82% | kr10/mo | Optional |
hgc-cf-cache-1.svonm.com hgc-cf-cache-1.svonm.com | Other | 63ms | 67 KB | 81% | kr8/mo | Optional |
ssl.p.jwpcdn.com ssl.p.jwpcdn.com | Other | 61ms | 30 KB | 84% | kr8/mo | Optional |
cmp.vg.no cmp.vg.no | Other | 54ms | 40 KB | — | kr7/mo | Optional |
cdn.stream.schibsted.media cdn.stream.schibsted.media | Other | 52ms | 42 KB | — | kr6/mo | Optional |
These scripts may cost more than they're worth
- www.vg.no adds 346ms and costs ~kr43/month
- Unattributable adds 338ms and costs ~kr42/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 346ms 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 338ms 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
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
81% of hgc-cf-cache-1.svonm.com'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
84% of ssl.p.jwpcdn.com'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