Performance
· 22 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.
553 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.76 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
39 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.095
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
642 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
1.77 s
Page Load Progression
BPage Weight Budget1.2 MB transferred, 67 requestsREVIEW
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
BJS Execution Cost797ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://aimetadatacleaner.pro/_next/static/chunks/0d65ce108889130a.js | 383ms | 334ms | 27ms | 1st |
| https://aimetadatacleaner.pro/ | 174ms | 9ms | 8ms | 1st |
| Unattributable | 130ms | 11ms | 0ms | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/54d0e05f6355ed1e.js | 110ms | 96ms | 5ms | 1st |
CJS BundlesAction29 scripts, 265 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://aimetadatacleaner.pro/_next/static/chunks/bb4ea8ac65a5663d.js | 177 KB | 125 KB (71%) | ✓ | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/6e4b50f03bb4d60c.js | 71 KB | 59 KB (84%) | ✓ | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/6a2f0085eaea8fc7.js | 74 KB | 58 KB (84%) | ✓ | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/0d65ce108889130a.js | 70 KB | 23 KB (33%) | ✓ | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/8f865f3963f525d3.js | 3 KB | — | ✓ | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/1258934ea4432c85.js | 21 KB | — | ✓ | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/e767791ab1bb9364.js | 8 KB | — | ✓ | 1st |
| https://static.cloudflareinsights.com/beacon.min.js/vce701823e78c4301a35b7e07294d87301792088814092 | 10 KB | — | ✓ | 3rd |
| https://aimetadatacleaner.pro/_next/static/chunks/b56f08e3ba1ab8b1.js | 3 KB | — | ✓ | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/76eacc8a51d3744c.js | 13 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
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
CMain HTML Cache-ControlActionMain HTML max-age=14400 (~240min) is aggressiveREVIEW
BPage Weight Inventory67 resources · 1.2 MB · 265 KB savings availableREVIEW
~265.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 67 resources | 1.2 MiB | ||||||
A+Third-Party Impact1% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
AImage Optimization3 images, 0 KB saveablePASS
A+Font Loading2 fonts (46 KB)PASS
Web fonts
2
46 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+Document CompressionDocument response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server-Timing Observability4 Server-Timing entries advertisedPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
A+HTTP Cachingmax-age=14400 (4 hours)PASS
public, max-age=14400, s-maxage=3600, stale-while-revalidate=60
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 14400 | Cache for 4 hours |
| s-maxage | 3600 | CDN caches for 1 hour |
| stale-while-revalidate | 60 | Serve stale for 1 minute while fetching fresh |
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall67 requests over 6648msINFO
Image Optimization21 images, 483 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
21
Total Size
483 KB