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.
774 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.81 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
12 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.
1.26 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.
5.81 s
Page Load Progression
FPage Weight BudgetAction7.4 MB transferred, 61 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DPage Weight InventoryAction61 resources · 7.4 MB · 124 KB savings availableFIX
~123.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 61 resources | 7.4 MiB | ||||||
CImage OptimizationAction16 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
BJS Execution Cost835ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.scoop.it/en/ | 459ms | 3ms | 1ms | 3rd |
| Unattributable | 147ms | 9ms | 0ms | 3rd |
| https://www.scoop.it/_next/static/chunks/9f4008469d0c7cdf.js | 132ms | 122ms | 7ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-C94KXM161H | 97ms | 80ms | 16ms | 3rd |
BJS Bundles15 scripts, 124 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-C94KXM161H | 157 KB | 65 KB (42%) | ✓ | 3rd |
| https://www.scoop.it/_next/static/chunks/0c2796b626873136.js | 51 KB | 31 KB (60%) | ✓ | 3rd |
| https://www.scoop.it/_next/static/chunks/9f4008469d0c7cdf.js | 69 KB | 28 KB (40%) | ✓ | 3rd |
| https://www.scoop.it/_next/static/chunks/turbopack-154b1a3f3de82760.js | 4 KB | — | ✓ | 3rd |
| https://www.scoop.it/_next/static/chunks/b13194cbac77d1ff.js | 14 KB | — | ✓ | 3rd |
| https://www.scoop.it/_next/static/chunks/557be5c833d730fe.js | 23 KB | — | ✓ | 3rd |
| https://www.scoop.it/_next/static/chunks/248cba0fcb3874ed.js | 9 KB | — | ✓ | 3rd |
| https://www.scoop.it/_next/static/chunks/16ede9e4a8b00325.js | 3 KB | — | ✓ | 3rd |
| https://www.scoop.it/_next/static/chunks/ff1a16fafef87110.js | 0 KB | — | ✓ | 3rd |
| https://www.scoop.it/_next/static/chunks/247eb132b7f7b574.js | 7 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
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingno-cacheREVIEW
no-cache
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading2 fonts (73 KB)PASS
Web fonts
2
73 KB total
Render-blocking
0
of 2
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 Waterfall61 requests over 2113msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.scoop.it www.scoop.it | Other | 459ms | 8 KB | — | €5/mo | Costly |
Unattributable Unattributable | Other | 147ms | 0 KB | — | €2/mo | Optional |
www.scoop.it www.scoop.it | Other | 132ms | 69 KB | 40% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 97ms | 157 KB | 42% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.scoop.it adds 459ms and costs ~€5/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.scoop.it takes 459ms 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