Performance
· 17 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.
3.00 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.36 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
180 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.
5.00 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.
4.37 s
Page Load Progression
DJS Execution CostAction2093ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://uptimerobot.com/_astro/page.DRj44X1D.js | 951ms | 285ms | 1ms | 1st |
| Unattributable | 519ms | 92ms | 0ms | 3rd |
| https://uptimerobot.com/_shared/v9/scripts.js | 415ms | 6ms | 1ms | 1st |
| https://uptimerobot.com/ | 208ms | 16ms | 8ms | 1st |
DHTTP CachingActionno-store (uncacheable)FIX
private, no-cache, no-store, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| must-revalidate | — | Must recheck with server after expiry |
BImage Optimization15 images, 0 KB saveableREVIEW
A+Page Weight Budget441 KB transferred, 37 requestsPASS
A+Third-Party Impact3% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (187 KB)PASS
Web fonts
4
187 KB total
Render-blocking
0
of 4
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+JS Bundles9 scripts, 0 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://uptimerobot.com/_astro/page.DRj44X1D.js | 37 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/index.astro_astro_type_script_index_0_lang.aS3P0kb-.js | 1 KB | — | ✓ | 1st |
| https://uptimerobot.com/_shared/v9/scripts.js | 3 KB | — | ✓ | 1st |
| https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 | 11 KB | — | ✓ | 3rd |
| https://uptimerobot.com/_astro/exports.BJx4QIne.js | 13 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/idle-import.DDHlgm-W.js | 2 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/_service_.astro_astro_type_script_index_0_lang.B7F4UTn8.js | 1 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/carousels.iwFFvK8F.js | 26 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/scrollreveal-init.N7pscX7R.js | 8 KB | — | ✓ | 1st |
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+Page Weight Inventory37 resources · 441 KB · 0 KB savings availablePASS
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 37 resources | 441.0 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall37 requests over 2227msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 519ms | 0 KB | — | €6/mo | Costly |
These scripts may cost more than they're worth
- Unattributable adds 519ms and costs ~€6/month
Unattributable takes 519ms 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