Performance
· 25 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.
969 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.91 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
195 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.
2.24 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.
2.91 s
Page Load Progression
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CJS Execution CostAction1145ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://filion.se/assets/index-BX4dqPuz.js | 483ms | 415ms | 1ms | 1st |
| https://filion.se/ | 368ms | 19ms | 5ms | 1st |
| Unattributable | 295ms | 26ms | 0ms | 1st |
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Page Weight Budget414 KB transferred, 50 requestsPASS
A+Third-Party ImpactNo third-party resourcesPASS
A+Text CompressionAll text resources are compressedPASS
A+Image OptimizationNo images on this pagePASS
A+Font Loading2 fonts (148 KB)PASS
Web fonts
2
148 KB total
Render-blocking
0
of 2
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 ~60 KB and ~120 ms
A+JS Bundles44 scripts, 35 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://filion.se/assets/index-BX4dqPuz.js | 82 KB | 35 KB (43%) | ✓ | 1st |
| https://filion.se/assets/rolldown-runtime-BWaJ3C7D.js | 1 KB | — | ✓ | 1st |
| https://filion.se/assets/jsx-runtime-DApVmHJR.js | 3 KB | — | ✓ | 1st |
| https://filion.se/assets/createServerFn-CQ1N5Gu0.js | 11 KB | — | ✓ | 1st |
| https://filion.se/assets/qss-3de60aZa.js | 1 KB | — | ✓ | 1st |
| https://filion.se/assets/matchContext-Ct4B6rQ7.js | 19 KB | — | ✓ | 1st |
| https://filion.se/assets/seo-Dw4bqAcY.js | 3 KB | — | ✓ | 1st |
| https://filion.se/assets/useMatch-CYY85-gK.js | 1 KB | — | ✓ | 1st |
| https://filion.se/assets/useSelector-BWpRJYBP.js | 1 KB | — | ✓ | 1st |
| https://filion.se/assets/Match-B55W3vHC.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
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints2 hints, 0 missing preconnectsPASS
Current Resource Hints
2 resource hints configured
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server-Timing Observability1 Server-Timing entries advertisedPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Page Weight Inventory50 resources · 414 KB · 35 KB savings availablePASS
~34.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 50 resources | 413.8 KiB | ||||||