Performance
· 27 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.
1.63 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.22 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
374 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.234
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.54 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.
5.61 s
Page Load Progression
FJS Execution CostAction4436ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.nxt-orbit.com/ | 1720ms | 42ms | 11ms | 1st |
| https://www.nxt-orbit.com/chunk-AYBT5TUT.js | 1196ms | 81ms | 0ms | 1st |
| https://www.nxt-orbit.com/chunk-TP6MA7MR.js | 796ms | 542ms | 0ms | 1st |
| Unattributable | 305ms | 7ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-XJGLEJX5GB | 267ms | 220ms | 43ms | 3rd |
| https://www.nxt-orbit.com/chunk-BUVHFB5N.js | 152ms | 27ms | 0ms | 1st |
BJS Bundles7 scripts, 133 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-XJGLEJX5GB | 179 KB | 74 KB (41%) | ✓ | 3rd |
| https://www.nxt-orbit.com/chunk-TP6MA7MR.js | 114 KB | 38 KB (34%) | ✓ | 1st |
| https://www.nxt-orbit.com/chunk-AYBT5TUT.js | 38 KB | 22 KB (57%) | ✓ | 1st |
| https://www.nxt-orbit.com/chunk-UDEH3KPI.js | 10 KB | — | ✓ | 1st |
| https://www.nxt-orbit.com/chunk-BUVHFB5N.js | 11 KB | — | ✓ | 1st |
| https://www.nxt-orbit.com/chunk-P7Y7N6AM.js | 0 KB | — | ✓ | 1st |
| https://www.nxt-orbit.com/main-XW3RQO5X.js | 19 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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BHTTP Cachingno-cacheREVIEW
no-cache
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
A+Page Weight Budget646 KB transferred, 18 requestsPASS
AThird-Party Impact32% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
AImage Optimization3 images, 0 KB saveablePASS
A+Font Loading1 fonts (24 KB)PASS
Web fonts
1
24 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 Hints2 hints, 0 missing preconnectsPASS
Current Resource Hints
2 resource hints configured
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-cache -- safe revalidate-on-request policyPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Page Weight Inventory18 resources · 646 KB · 133 KB savings availablePASS
~133.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 18 resources | 646.3 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: OVHcloud
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall18 requests over 2397msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 267ms | 179 KB | 41% | €3/mo | Costly |
These scripts may cost more than they're worth
- Google Tag Manager adds 267ms and costs ~€3/month
Google Tag Manager takes 267ms 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
Image Optimization7 images, 117 KB total, 27 KB wastedINFO
Image Optimization Audit
Total Images
7
Total Size
117 KB
Oversized
1
Wasted
27 KB