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.
3.33 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
0 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 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.
5.67 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.
0 ms
Page Load Progression
FJS Execution CostAction7986ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://sentry.io/_astro/Welcome.astro_astro_type_script_index_0_lang.CxHIClDC.js | 6119ms | 2806ms | 1ms | 1st |
| Unattributable | 956ms | 395ms | 0ms | 3rd |
| https://sentry.io/welcome/ | 450ms | 134ms | 18ms | 1st |
| https://plausible.io/js/script.tagged-events.js | 360ms | 24ms | 1ms | 3rd |
| https://sentry.io/_astro/link-decorator.BP7leAsv.js | 100ms | 2ms | 0ms | 1st |
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction1.7 MB transferred, 50 requestsREVIEW
CImage OptimizationAction22 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CPage Weight InventoryAction50 resources · 1.7 MB · 0 KB savings availableREVIEW
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 50 resources | 1.7 MiB | ||||||
AThird-Party Impact30% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (104 KB)PASS
Web fonts
6
104 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
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 ~9 KB and ~18 ms
A+JS Bundles12 scripts, 0 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://sentry.io/_astro/Link.astro_astro_type_script_index_0_lang.B5kEYiND.js | 0 KB | — | ✓ | 1st |
| https://plausible.io/js/script.tagged-events.js | 2 KB | — | ✓ | 3rd |
| https://sentry.io/_astro/GettingStarted.astro_astro_type_script_index_0_lang.BTWxF49p.js | 0 KB | — | ✓ | 1st |
| https://sentry.io/_astro/Welcome.astro_astro_type_script_index_0_lang.CxHIClDC.js | 45 KB | — | ✓ | 1st |
| https://sentry.io/_astro/MarketoForm.CKHgLosH.js | 5 KB | — | ✓ | 1st |
| https://sentry.io/_astro/client.DeAwy1AW.js | 1 KB | — | ✓ | 1st |
| https://sentry.io/_astro/link-decorator.BP7leAsv.js | 3 KB | — | ✓ | 1st |
| https://sentry.io/_astro/jsx-runtime.9DypCmAh.js | 1 KB | — | ✓ | 1st |
| https://sentry.io/_astro/index.eCxJ45ll.js | 3 KB | — | ✓ | 1st |
| https://sentry.io/_astro/_slug_.d55d3e77.B7luF8nJ.js | 1 KB | — | ✓ | 1st |
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints6 hints, 0 missing preconnectsPASS
Current Resource Hints
6 resource hints configured
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: Google Cloud
Network Waterfall50 requests over 1773msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 956ms | 0 KB | — | $17/mo | Costly |
Plausible Analytics plausible.io | Analytics | 360ms | 2 KB | — | $6/mo | Costly |
These scripts may cost more than they're worth
- Unattributable adds 956ms and costs ~$17/month
- Plausible Analytics adds 360ms and costs ~$6/month
Unattributable takes 956ms 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
Plausible Analytics takes 360ms 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