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.
397 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.16 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.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
913 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
1.16 s
Page Load Progression
FPage Weight BudgetAction5.6 MB transferred, 33 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
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
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization10 images, 0 KB saveableREVIEW
BJS Bundles10 scripts, 51 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://doodle.com/static-site/_next/static/chunks/826-342bc9ad6db91a4a.js | 58 KB | 27 KB (47%) | ✓ | 1st |
| https://doodle.com/static-site/_next/static/chunks/4bd1b696-cf1248645ccd404e.js | 62 KB | 24 KB (39%) | ✓ | 1st |
| https://doodle.com/static-site/_next/static/chunks/webpack-f1cbfa29c0696125.js | 2 KB | — | ✓ | 1st |
| https://doodle.com/static-site/_next/static/chunks/main-app-72a72184c53ea859.js | 0 KB | — | ✓ | 1st |
| https://doodle.com/static-site/_next/static/chunks/327-85ab3584d3e663fa.js | 41 KB | — | ✓ | 1st |
| https://doodle.com/static-site/_next/static/chunks/518-d34389f20be1d4d5.js | 28 KB | — | ✓ | 1st |
| https://doodle.com/static-site/_next/static/chunks/app/%5Blang%5D/layout-522ee7e1f84352c2.js | 4 KB | — | ✓ | 1st |
| https://doodle.com/static-site/_next/static/chunks/494-fa1b6575f4c75dd5.js | 6 KB | — | ✓ | 1st |
| https://doodle.com/static-site/_next/static/chunks/265-12ae1a25f6ecff0b.js | 10 KB | — | ✓ | 1st |
| https://doodle.com/static-site/_next/static/chunks/app/%5Blang%5D/page-cf711d5a78e4e340.js | 2 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
CPage Weight InventoryAction33 resources · 5.6 MB · 51 KB savings availableREVIEW
~50.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 33 resources | 5.6 MiB | ||||||
A+Third-Party Impact0% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+JS Execution Cost387ms total JS executionPASS
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://doodle.com/static-site/_next/static/chunks/826-342bc9ad6db91a4a.js | 159ms | 144ms | 6ms | 1st |
| https://doodle.com/en/ | 123ms | 4ms | 4ms | 1st |
| Unattributable | 105ms | 2ms | 0ms | 3rd |
A+Font Loading4 fonts (422 KB)PASS
Web fonts
4
422 KB total
Render-blocking
0
of 4
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
- 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 ~157 KB and ~314 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall33 requests over 934msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 105ms | 0 KB | — | €1/mo | Optional |