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.
2.36 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.94 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
162 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.013
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.21 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.
4.95 s
Page Load Progression
FPage Weight BudgetAction4.1 MB transferred, 92 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
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 ImpactAction99% third-party, 0 ms blockingFIX
FJS BundlesAction31 scripts, 1.5 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://d19rpgkrjeba2z.cloudfront.net/static/gen/signup_92459c5573d2e9c9.js | 820 KB | 459 KB (56%) | ✓ | 3rd |
| https://d19rpgkrjeba2z.cloudfront.net/static/gen/vendors-node_modules_pnpm_react-map-gl_6_1_14_react_18_3_1_node_modules_react-map-gl_dist_esm-8f6312_d327335ad85a81bc.js | 294 KB | 293 KB (100%) | ✓ | 3rd |
| https://d19rpgkrjeba2z.cloudfront.net/static/gen/vendor_ec85e51110ebc3f9.js | 308 KB | 188 KB (61%) | ✓ | 3rd |
| https://d19rpgkrjeba2z.cloudfront.net/static/gen/ndvendor_95a3ecae1cb4cec3.js | 258 KB | 90 KB (35%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-L2ES4MTTT0&cx=c>m=4e64h1 | 169 KB | 86 KB (51%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-HND6C6XLY7&cx=c>m=4e64h1 | 144 KB | 81 KB (56%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-867391995 | 138 KB | 78 KB (57%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KQ8G9ZK | 181 KB | 70 KB (39%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client | 96 KB | 68 KB (71%) | ✓ | 3rd |
| https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 102 KB | 46 KB (45%) | ✓ | 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 InventoryAction92 resources · 4.1 MB · 1.5 MB savings availableFIX
~1.5 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 92 resources | 4.1 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
no-store
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
BImage Optimization15 images, 0 KB saveableREVIEW
CJS Execution CostAction1148ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://d19rpgkrjeba2z.cloudfront.net/static/gen/signup_92459c5573d2e9c9.js | 578ms | 426ms | 62ms | 3rd |
| Unattributable | 120ms | 36ms | 0ms | 3rd |
| https://d19rpgkrjeba2z.cloudfront.net/static/gen/src_assets_about_section_essential_svg-src_assets_about_section_local_svg-src_assets_about_se-227ed6_bc6aa3569ddae909.js | 112ms | 83ms | 5ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KQ8G9ZK | 110ms | 94ms | 11ms | 3rd |
| https://nextdoor.com/ | 99ms | 52ms | 6ms | 1st |
| https://d19rpgkrjeba2z.cloudfront.net/static/gen/vendor_ec85e51110ebc3f9.js | 68ms | 20ms | 31ms | 3rd |
| https://d19rpgkrjeba2z.cloudfront.net/static/gen/ndvendor_95a3ecae1cb4cec3.js | 61ms | 25ms | 32ms | 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 Loading1 fonts (57 KB)PASS
Web fonts
1
57 KB total
Render-blocking
0
of 1
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 Waterfall92 requests over 3632msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
d19rpgkrjeba2z.cloudfront.net d19rpgkrjeba2z.cloudfront.net | Other | 578ms | 820 KB | 56% | €9/mo | Costly |
Unattributable Unattributable | Other | 120ms | 0 KB | — | €2/mo | Optional |
d19rpgkrjeba2z.cloudfront.net d19rpgkrjeba2z.cloudfront.net | Other | 112ms | 66 KB | — | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 110ms | 181 KB | 39% | €2/mo | Optional |
d19rpgkrjeba2z.cloudfront.net d19rpgkrjeba2z.cloudfront.net | Other | 68ms | 308 KB | 61% | €1/mo | Optional |
d19rpgkrjeba2z.cloudfront.net d19rpgkrjeba2z.cloudfront.net | Other | 61ms | 258 KB | 35% | €1/mo | Optional |
These scripts may cost more than they're worth
- d19rpgkrjeba2z.cloudfront.net adds 578ms and costs ~€9/month
91% 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
d19rpgkrjeba2z.cloudfront.net takes 578ms 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
56% of d19rpgkrjeba2z.cloudfront.net'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
61% of d19rpgkrjeba2z.cloudfront.net'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