Performance
· 23 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.
728 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.38 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
94 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.00 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.
2.03 s
Page Load Progression
DPage Weight BudgetAction2.3 MB transferred, 58 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
DJS BundlesAction33 scripts, 375 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.noordoostpolder.nl/_next/static/chunks/pages/_app-7338c2d52f827464.js | 443 KB | 274 KB (62%) | ✓ | 1st |
| https://cdn1.readspeaker.com/script/14424/webReader/webReader.js?pids=wr | 28 KB | 51 KB (58%) | ✓ | 3rd |
| https://cdn1.readspeaker.com/script/14424/webReader/webReader.js?pids=wr | 0 KB | 51 KB (58%) | ✓ | 3rd |
| https://www.noordoostpolder.nl/_next/static/chunks/53554.e47203d016dcaae8.js | 2 KB | — | ✓ | 1st |
| https://www.noordoostpolder.nl/_next/static/chunks/framework-cfa9730c0b361aa8.js | 44 KB | — | ✓ | 1st |
| https://www.noordoostpolder.nl/_next/static/chunks/69703.7c7f1c50fdd19446.js | 1 KB | — | ✓ | 1st |
| https://www.noordoostpolder.nl/_next/static/chunks/22386.34774c0fa7ae013d.js | 1 KB | — | ✓ | 1st |
| https://www.noordoostpolder.nl/_next/static/chunks/88033.48d9d46e745b996d.js | 1 KB | — | ✓ | 1st |
| https://www.noordoostpolder.nl/_next/static/chunks/77357.4b1f05e64bcb3e81.js | 1 KB | — | ✓ | 1st |
| https://www.noordoostpolder.nl/_next/static/chunks/75879.89a47b4cc8797ced.js | 1 KB | — | ✓ | 1st |
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
DHTTP CachingActionno-store (uncacheable)FIX
no-store
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
BImage Optimization16 images, 0 KB saveableREVIEW
BJS Execution Cost713ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.noordoostpolder.nl/_next/static/chunks/framework-cfa9730c0b361aa8.js | 325ms | 287ms | 3ms | 1st |
| https://www.noordoostpolder.nl/_next/static/chunks/pages/_app-7338c2d52f827464.js | 185ms | 144ms | 41ms | 1st |
| https://www.noordoostpolder.nl/ | 123ms | 4ms | 1ms | 1st |
| Unattributable | 80ms | 2ms | 0ms | 1st |
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
CDocument CompressionActionDocument response served uncompressedREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CPage Weight InventoryAction58 resources · 2.3 MB · 375 KB savings availableREVIEW
~375.1 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 58 resources | 2.3 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Third-Party Impact7% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (71 KB)PASS
Web fonts
4
71 KB total
Render-blocking
0
of 4
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 ~11 KB and ~22 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
AAsset Compression1 of 1 asset host still on gzipPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
Network Waterfall58 requests over 1050msINFO
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-10-14 — 2026-11-10)
LCP (p75)
1197 ms
96% good
INP (p75)
105 ms
96% good
CLS (p75)
0.000
98% good
FCP (p75)
1000 ms
TTFB (p75)
425 ms
Image Optimization8 images, 368 KB total, 321 KB wastedINFO
Image Optimization Audit
Total Images
8
Total Size
368 KB
Oversized
4
Wasted
321 KB