Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

A+

FIX

REVIEW

PASS

INFO

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop

Performance

Accessibility

100

Best Practices

100

SEO

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

314 ms

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

536 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.

0.177

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

647 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.

536 ms

Page Load Progression

375 ms

750 ms

1.1 s

1.5 s

1.9 s

2.2 s

2.6 s

3.0 s

Checks

15 PASS 3 REVIEW 1 FIX

HTTP Caching

Action

No cache headers

FIX

No cache headers

No Cache-Control header found

Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

Last-Modified header present

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

Main HTML Cache-Control

No Cache-Control header on main HTML response

REVIEW

No Cache-Control header on main HTML response

Main HTML response has no Cache-Control header

Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.

Server-Timing Observability

No Server-Timing header found

REVIEW

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.

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

Page Weight Budget

863 KB transferred, 30 requests

PASS

863 KB transferred, 30 requests

Page weighs 918 KB (863 KB transferred)

30 HTTP requests

Estimated 0.18 g CO2 per page load

863 KB transferred

30 requests

0.18 g CO2 per page load

Images 690.9 KiB 80%

Fonts 149.5 KiB 17%

Other 7.6 KiB 1%

CSS 4.5 KiB 1%

JavaScript 4.2 KiB 0%

HTML 2.9 KiB 0%

Other 2.4 KiB 0%

Other 636 B 0%

0 2.4 MB 4.9 MB

Under budget

A+

Third-Party Impact

No third-party resources

PASS

No third-party resources

No third-party resources detected

No third-party resources detected — all resources are first-party.

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Image Optimization

21 images, 0 KB saveable

PASS

21 images, 0 KB saveable

All images are well-optimized

21 images 691 KB

0 oversized -0 KB

1 legacy format

0 missing dimensions CLS risk

A+

JS Execution Cost

105ms total JS execution

PASS

105ms total JS execution

Unattributable: 55ms CPU time

https://menu-cactus.ir/: 50ms CPU time

Main Thread Breakdown

Other 51% Style & Layout 23% Script Evaluation 12% Rendering 10% Parse HTML & CSS 3%

Script	Total	Scripting	Parse/Compile	Party
Unattributable	55ms	5ms	0ms	1st
https://menu-cactus.ir/	50ms	4ms	0ms	1st

A+

Font Loading

3 fonts (149 KB)

PASS

3 fonts (149 KB)

3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

149 KB total

Render-blocking

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

Vazirmatn-Bold.woff2 woff2 swap

Size 50 KB

Load time 279 ms

Start 292 ms

Risk FOUT — text flashes from fallback to web font

Vazirmatn-Medium.woff2 woff2 swap

Size 50 KB

Load time 367 ms

Start 293 ms

Risk FOUT — text flashes from fallback to web font

Vazirmatn-Regular.woff2 woff2 swap

Size 50 KB

Load time 367 ms

Start 294 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+

JS Bundles

1 scripts, 0 KB unused

PASS

1 scripts, 0 KB unused

0 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://menu-cactus.ir/app.js	4 KB	—	✓	1st

A+

Resource Caching

All resources properly cached

PASS

All resources properly cached

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

No optimization needed

PASS

No optimization needed

No resource hint issues

A+

HTTP/3 (QUIC)

HTTP/3 advertised via Alt-Svc

PASS

HTTP/3 advertised via Alt-Svc

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 Compression

Document response uses brotli

PASS

Document response uses brotli

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 Preload

LCP preload audit not available

PASS

LCP preload audit not available

LCP image preload audit not available for this scan

A+

Server Response Intelligence

2 server-response signal(s) detected

PASS

2 server-response signal(s) detected

`Vary` header declared: Accept-Encoding

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).

`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.

A+

Page Weight Inventory

30 resources · 863 KB · 0 KB savings available

PASS

30 resources · 863 KB · 0 KB savings available

Within 1MB page-weight target

Got: 863 KB

30 resources · 862.6 KiB · 0 third-party Within 1MB page-weight target

Image 81% · 698.5 KiB

Font 17% · 149.5 KiB

CSS 1% · 4.5 KiB

JavaScript 0% · 4.2 KiB

Other 0% · 3.0 KiB

Document 0% · 2.9 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

30 resources			862.6 KiB

Asset Compression

No text asset hosts to measure

INFO

No text asset hosts to measure

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 Waterfall

30 requests over 1103ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Image Optimization

42 images, 217 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

217 KB

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.