https://aimetadatacleaner.pro
Performance
· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
90
GRADE
A
FIX
1
REVIEW
4
PASS
18
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
54
96
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
2.15 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.32 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
849 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.086
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.15 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.
8.73 s
Page Load Progression
Checks
2718 PASS 4 REVIEW 1 FIX
FJS Execution CostAction3781ms total JS executionFIX
JS Execution Cost
Action3781ms total JS execution
3781ms total JS execution
Warning::
https://aimetadatacleaner.pro/_next/static/chunks/...: 1526ms CPU time
Warning::
https://aimetadatacleaner.pro/: 979ms CPU time
Warning::
Unattributable: 570ms CPU time
Warning::
https://aimetadatacleaner.pro/_next/static/chunks/...: 251ms CPU time
Info::
https://aimetadatacleaner.pro/_next/static/chunks/...: 242ms CPU time
Info::
Third-party scripts: 52ms (1% of total)
Main Thread Breakdown
Script Evaluation 52% Style & Layout 16% Other 16% Script Parsing & Compilation 10%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://aimetadatacleaner.pro/_next/static/chunks/0d65ce108889130a.js | 1526ms | 1420ms | 35ms | 1st |
| https://aimetadatacleaner.pro/ | 979ms | 118ms | 36ms | 1st |
| Unattributable | 570ms | 44ms | 0ms | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/54d0e05f6355ed1e.js | 251ms | 184ms | 29ms | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/bf2ba64c332601e5.js | 242ms | 237ms | 4ms | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/bb4ea8ac65a5663d.js | 107ms | 3ms | 103ms | 1st |
| https://aimetadatacleaner.pro/_next/static/chunks/e2cbf1b6e90e6f6b.css | 54ms | 0ms | 0ms | 1st |
| https://static.cloudflareinsights.com/beacon.min.js/vce701823e78c4301a35b7e07294d87301792088814092 | 52ms | 38ms | 0ms | 3rd |
BPage Weight Budget1.1 MB transferred, 66 requestsREVIEW
Page Weight Budget
1.1 MB transferred, 66 requests
1.1 MB transferred, 66 requests
Info::
Page weighs 3.0 MB (1.1 MB transferred)
Warning::
JavaScript is 743 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 743 KB
Info::
66 HTTP requests
Info::
Estimated 0.24 g CO2 per page load
1.1 MB transferred
66 requests
0.24 g CO2 per page load
JavaScript 743.1 KiB 63%
Images 253.6 KiB 22%
Other 46.9 KiB 4%
Fonts 45.7 KiB 4%
CSS 42.7 KiB 4%
HTML 36.7 KiB 3%
Other 6.2 KiB 1%
Other 987 B 0%
Other 479 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Why this matters
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
CJS BundlesAction29 scripts, 266 KB unusedREVIEW
JS Bundles
Action29 scripts, 266 KB unused
29 scripts, 266 KB unused
Warning::
https://aimetadatacleaner.pro/_next/static/chunks/...: 125 KB unused (71%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://aimetadatacleaner.pro/_next/static/chunks/...: 59 KB unused (84%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://aimetadatacleaner.pro/_next/static/chunks/...: 58 KB unused (84%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://aimetadatacleaner.pro/_next/static/chunks/...: 23 KB unused (33%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 266 KB
266 KB unused JavaScript
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 | 71 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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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
Main HTML Cache-Control
ActionMain HTML max-age=14400 (~240min) is aggressive
Main HTML max-age=14400 (~240min) is aggressive
Warning::
Main HTML cached for 240 minutes -- risks stale auth / SPA state
Long max-age on the main HTML document means users may see outdated auth state, SPA shells, or A/B variants until the cache expires. Consider Cache-Control: no-cache (or max-age=300) for HTML and let your hashed assets (JS/CSS/images) carry the long cache instead.
Got: public, max-age=14400, s-maxage=3600, stale-while-revalidate=60
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
JavaScript Blocking
2 JS blocking issue(s) detected
2 JS blocking issue(s) detected
Warning::
2 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
Warning::
Total JS execution time is 3.8 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
A+Third-Party Impact1% third-party, 0 ms blockingPASS
Third-Party Impact
1% third-party, 0 ms blocking
1% third-party, 0 ms blocking
Info::
Third-party code accounts for 1% of page weight (14.3 KiB of 1.1 MiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
AImage Optimization2 images, 0 KB saveablePASS
Image Optimization
2 images, 0 KB saveable
2 images, 0 KB saveable
Info::
All images are well-optimized
2 images 254 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+Font Loading2 fonts (46 KB)PASS
Font Loading
2 fonts (46 KB)
2 fonts (46 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
2
46 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
051742360c26797e-s.p.10... woff2 swap
Size 31 KB
Load time 27 ms
Start 424 ms
Risk FOUT — text flashes from fallback to web font
ae2df52ec52db659-s.p.9e... woff2 swap
Size 15 KB
Load time 24 ms
Start 424 ms
Risk FOUT — text flashes from fallback to web font
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
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource Hints3 hints, 0 missing preconnectsPASS
Resource Hints
3 hints, 0 missing preconnects
3 hints, 0 missing preconnects
Info::
Page uses 3 resource hint(s)
Current Resource Hints
preconnect—
preload 3
dns-prefetch—
prefetch—
3 resource hints configured
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+Document CompressionDocument response uses brotliPASS
Document Compression
Document response uses brotli
Document response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Server-Timing Observability4 Server-Timing entries advertisedPASS
Server-Timing Observability
4 Server-Timing entries advertised
4 Server-Timing entries advertised
Info::
Server-Timing header advertises 4 timing entries
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Info::
`Vary` header declared: rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch,...
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
`Last-Modified` present -- timestamp-based conditional GET supported
Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.
APage Weight Inventory66 resources · 1.1 MB · 266 KB savings availablePASS
Page Weight Inventory
66 resources · 1.1 MB · 266 KB savings available
66 resources · 1.1 MB · 266 KB savings available
Warning::
Page weight 1.1 MB exceeds 1 MB target by 152 KB
Got: 1.1 MB Expected: ≤ 1 MB
Info::
~266 KB of savings available
Info::
4 third-party resources (1% of weight)
66 resources · 1.1 MiB · 4 third-party 152.4 KiB over 1MB target
JavaScript 63% · 743.1 KiB
Image 22% · 259.8 KiB
Other 4% · 48.3 KiB
Font 4% · 45.7 KiB
CSS 4% · 42.7 KiB
Document 3% · 36.7 KiB
~265.7 KiB of savings available
Remove unused JavaScript: 265.7 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 66 resources | 1.1 MiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
CSS Performance Depth
No CSS performance depth issues detected
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
A+HTTP Cachingmax-age=14400 (4 hours)PASS
HTTP Caching
max-age=14400 (4 hours)
max-age=14400 (4 hours)
Info::
Cache-Control header is set
Got: public, max-age=14400, s-maxage=3600, stale-while-revalidate=60
Info::
Effective TTL: 4 hours (max-age=14400)
Info::
CDN TTL: 1 hour (s-maxage=3600)
Info::
Last-Modified header present
Cache-Control
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 |
Effective TTL: 14400 seconds
Asset CompressionNo text asset hosts to measureINFO
Asset Compression
No text asset hosts to measure
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall66 requests over 5451msINFO
Network Waterfall
66 requests over 5451ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
1% of JavaScript execution is third-party
First-party Third-party 52ms · 10KB · €1/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
static.cloudflareinsights.com static.cloudflareinsights.com | Other | 52ms | 10 KB | — | €1/mo | Optional |
static.cloudflareinsights.com
Other
Execution 52ms
Transfer 10 KB
Monthly Cost €1/mo
Image Optimization21 images, 483 KB total, 0 KB wastedINFO
Image Optimization
21 images, 483 KB total, 0 KB wasted
Image Optimization Audit
Total Images
21
Total Size
483 KB
1 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.