https://minimaxh3.art
Performance
· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
95
GRADE
A
FIX
0
REVIEW
7
PASS
12
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
85
96
96
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.39 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.96 s
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.
0.009
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.72 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.
1.97 s
Page Load Progression
513 ms
1.0 s
1.5 s
2.0 s
2.6 s
3.1 s
3.6 s
4.1 sChecks
2312 PASS 7 REVIEW
CPage Weight BudgetAction1.9 MB transferred, 118 requestsREVIEW
Page Weight Budget
Action1.9 MB transferred, 118 requests
1.9 MB transferred, 118 requests
Info::
Page weighs 3.5 MB (1.9 MB transferred)
Warning::
JavaScript is 588 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 588 KB
Warning::
118 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.41 g CO2 per page load
1.9 MB transferred
118 requests
0.41 g CO2 per page load
Other 708.6 KiB 36%
JavaScript 588.0 KiB 30%
Images 557.6 KiB 28%
HTML 49.6 KiB 3%
CSS 35.8 KiB 2%
Fonts 21.0 KiB 1%
Other 15.7 KiB 1%
Other 5.6 KiB 0%
Other 935 B 0%
Other 831 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit
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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Why this matters
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
BImage Optimization19 images, 0 KB saveableREVIEW
Image Optimization
19 images, 0 KB saveable
19 images, 0 KB saveable
Info::
All images are well-optimized
19 images 558 KB
0 oversized -0 KB
4 legacy format
0 missing dimensions CLS risk
CJS Execution CostAction1050ms total JS executionREVIEW
JS Execution Cost
Action1050ms total JS execution
1050ms total JS execution
Warning::
https://minimaxh3.art/: 284ms CPU time
Warning::
https://minimaxh3.art/assets/framework-DJH1pfSr.js: 264ms CPU time
Info::
https://minimaxh3.art/assets/demo-reel-DuPcTGlO.js: 226ms CPU time
Info::
Unattributable: 135ms CPU time
Info::
https://scripts.clarity.ms/0.8.69/clarity.js: 78ms CPU time
Info::
Third-party scripts: 142ms (14% of total)
Main Thread Breakdown
Script Evaluation 39% Other 30% Style & Layout 21% Rendering 6%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://minimaxh3.art/ | 284ms | 4ms | 7ms | 1st |
| https://minimaxh3.art/assets/framework-DJH1pfSr.js | 264ms | 204ms | 0ms | 1st |
| https://minimaxh3.art/assets/demo-reel-DuPcTGlO.js | 226ms | 59ms | 0ms | 1st |
| Unattributable | 135ms | 11ms | 0ms | 1st |
| https://scripts.clarity.ms/0.8.69/clarity.js | 78ms | 70ms | 2ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-SY0NFPEG1T | 65ms | 54ms | 10ms | 3rd |
BJS Bundles77 scripts, 145 KB unusedREVIEW
JS Bundles
77 scripts, 145 KB unused
77 scripts, 145 KB unused
Warning::
https://accounts.google.com/gsi/client: 74 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-SY0N...: 71 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 145 KB
145 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://accounts.google.com/gsi/client | 99 KB | 74 KB (75%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-SY0NFPEG1T | 169 KB | 71 KB (42%) | ✓ | 3rd |
| https://minimaxh3.art/assets/global-error-CVl8f3Cz.js | 1 KB | — | ✓ | 1st |
| https://minimaxh3.art/assets/framework-DJH1pfSr.js | 60 KB | — | ✓ | 1st |
| https://minimaxh3.art/assets/rolldown-runtime-QTnfLwEv.js | 1 KB | — | ✓ | 1st |
| https://minimaxh3.art/assets/url-utils-BQKFb685.js | 1 KB | — | ✓ | 1st |
| https://minimaxh3.art/assets/error-lSfRIvyA.js | 1 KB | — | ✓ | 1st |
| https://minimaxh3.art/assets/navigation-CBnhO4Zv.js | 2 KB | — | ✓ | 1st |
| https://minimaxh3.art/assets/react-DlbkFqaW.js | 13 KB | — | ✓ | 1st |
| https://minimaxh3.art/assets/BaseLink-B2dSlgLT.js | 6 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
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
CPage Weight InventoryAction118 resources · 1.9 MB · 145 KB savings availableREVIEW
Page Weight Inventory
Action118 resources · 1.9 MB · 145 KB savings available
118 resources · 1.9 MB · 145 KB savings available
Warning::
Page weight 1.9 MB exceeds 1 MB target by 960 KB
Got: 1.9 MB Expected: ≤ 1 MB
Info::
~145 KB of savings available
Info::
16 third-party resources (15% of weight)
Info::
1 resources over 200KB
118 resources · 1.9 MiB · 16 third-party 959.5 KiB over 1MB target
Media 36% · 708.6 KiB
JavaScript 30% · 588.0 KiB
Image 29% · 573.2 KiB
Document 3% · 49.6 KiB
CSS 2% · 35.8 KiB
Font 1% · 21.0 KiB
Other 0% · 7.3 KiB
~144.7 KiB of savings available
Remove unused JavaScript: 144.7 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 118 resources | 1.9 MiB | ||||||
BHTTP Cachingpublic, max-age=0, s-maxage=60, must-revalidateREVIEW
HTTP Caching
public, max-age=0, s-maxage=60, must-revalidate
public, max-age=0, s-maxage=60, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, s-maxage=60, must-revalidate
Info::
CDN TTL: 1 minute (s-maxage=60)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
public, max-age=0, s-maxage=60, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 0 | Cache for 0 seconds |
| s-maxage | 60 | CDN caches for 1 minute |
| must-revalidate | — | Must recheck with server after expiry |
A+Third-Party Impact15% third-party, 0 ms blockingPASS
Third-Party Impact
15% third-party, 0 ms blocking
15% third-party, 0 ms blocking
Info::
Third-party code accounts for 15% of page weight (301.9 KiB of 1.9 MiB)
Info::
Third-party blocking time is low (0 ms)
85%
15%
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.
A+Font Loading2 fonts (21 KB)PASS
Font Loading
2 fonts (21 KB)
2 fonts (21 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
2
21 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
outfit-19c86109.woff2 woff2 swap
Size 7 KB
Load time 143 ms
Start 84 ms
Risk FOUT — text flashes from fallback to web font
outfit-be21ba2a.woff2 woff2 swap
Size 14 KB
Load time 144 ms
Start 85 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 HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
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+Compression AlgorithmMain response uses brotliPASS
Compression Algorithm
Main response uses brotli
Main 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+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: public, max-age=0, s-maxage=60, must-revalidate
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, Accept, Next-Router-State-Tree, Next-Router-Prefetch, Next-Router-Segment-P...
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::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
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
Network Waterfall118 requests over 3539msINFO
Network Waterfall
118 requests over 3539ms
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
14% of JavaScript execution is third-party
First-party Third-party 142ms · 194KB · €1/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Microsoft Clarity scripts.clarity.ms | Session Replay | 78ms | 25 KB | — | €0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 65ms | 169 KB | 42% | €0/mo | Optional |
Microsoft Clarity
Session Replay
Execution 78ms
Transfer 25 KB
Monthly Cost €0/mo
Google Tag Manager
Tag Manager
Execution 65ms
Transfer 169 KB
Unused 42%
Monthly Cost €0/mo
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-07-28 — 2026-08-24)
LCP (p75)
1867 ms
88% good
INP (p75)
73 ms
95% good
CLS (p75)
0.010
97% good
FCP (p75)
1646 ms
TTFB (p75)
871 ms
This origin passes Core Web Vitals assessment
Image Optimization48 images, 528 KB total, 165 KB wastedINFO
Image Optimization
48 images, 528 KB total, 165 KB wasted
Image Optimization Audit
Total Images
48
Total Size
528 KB
Oversized
2
Wasted
165 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.