Performance
· 21 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.
536 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.78 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
186 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.036
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.05 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.
1.79 s
Page Load Progression
DHTTP CachingActionno-store (uncacheable)FIX
private, no-cache, no-store, max-age=0, 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 |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
BPage Weight Budget1.1 MB transferred, 70 requestsREVIEW
CJS Execution CostAction1718ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://productshotai.app/ | 601ms | 38ms | 25ms | 1st |
| https://productshotai.app/_next/static/chunks/2108-f97493d7b81db84a.js | 322ms | 14ms | 1ms | 1st |
| https://productshotai.app/_next/static/chunks/4bd1b696-f785427dddbba9fb.js | 221ms | 26ms | 10ms | 1st |
| Unattributable | 181ms | 8ms | 0ms | 1st |
| https://productshotai.app/_next/static/chunks/1255-32f0b2a4c4d3a714.js | 153ms | 143ms | 5ms | 1st |
| https://productshotai.app/cdn-cgi/challenge-platform/scripts/jsd/main.js | 138ms | 131ms | 1ms | 1st |
| https://productshotai.app/_next/static/chunks/webpack-fd2b20755a98242e.js | 103ms | 102ms | 0ms | 1st |
BJS Bundles19 scripts, 72 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://accounts.google.com/gsi/client | 97 KB | 72 KB (75%) | ✓ | 3rd |
| https://productshotai.app/_next/static/chunks/5168-1e89660d87855463.js | 4 KB | — | ✓ | 1st |
| https://productshotai.app/_next/static/chunks/2108-f97493d7b81db84a.js | 6 KB | — | ✓ | 1st |
| https://productshotai.app/_next/static/chunks/main-app-168369fd0b85f5b4.js | 1 KB | — | ✓ | 1st |
| https://productshotai.app/_next/static/chunks/6091-6bdfcd8c31001171.js | 13 KB | — | ✓ | 1st |
| https://productshotai.app/_next/static/chunks/176-028c0e434f6e748f.js | 4 KB | — | ✓ | 1st |
| https://productshotai.app/_next/static/chunks/1356-e0431919f9b272a7.js | 6 KB | — | ✓ | 1st |
| https://productshotai.app/_next/static/chunks/6199-69bf43d3f1b562f8.js | 3 KB | — | ✓ | 1st |
| https://productshotai.app/_next/static/chunks/webpack-fd2b20755a98242e.js | 2 KB | — | ✓ | 1st |
| https://productshotai.app/_next/static/chunks/1255-32f0b2a4c4d3a714.js | 44 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+Third-Party Impact12% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization31 images, 0 KB saveablePASS
A+Font Loading2 fonts (74 KB)PASS
Web fonts
2
74 KB total
Render-blocking
0
of 2
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
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Compression AlgorithmMain response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
A+Server-Timing Observability3 Server-Timing entries advertisedPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
APage Weight Inventory70 resources · 1.1 MB · 72 KB savings availablePASS
~72.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 70 resources | 1.1 MiB | ||||||
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall70 requests over 2946msINFO
Image Optimization111 images, 1297 KB total, 472 KB wastedINFO
Image Optimization Audit
Total Images
111
Total Size
1297 KB
Oversized
29
Wasted
472 KB