Performance

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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

Mobile Desktop

100

Performance

100

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.

534 ms

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

796 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.

0.000

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

566 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.

800 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

14 PASS 5 REVIEW

Third-Party Impact

50% third-party, 0 ms blocking

REVIEW

50% third-party, 0 ms blocking

Third-party code accounts for 50% of page weight (245.6 KiB of 488.0 KiB)

Third-party blocking time is low (0 ms)

50%

First-party Third-party

Image Optimization

15 images, 0 KB saveable

REVIEW

15 images, 0 KB saveable

All images are well-optimized

15 images 255 KB

0 oversized -0 KB

4 legacy format

0 missing dimensions CLS risk

Compression Algorithm

Main response uses gzip; brotli would be ~20% smaller

REVIEW

Main response uses gzip; brotli would be ~20% smaller

Main HTML response uses gzip (brotli would be ~20% smaller)

All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.

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.

HTTP Caching

public, max-age=0, must-revalidate

REVIEW

public, max-age=0, must-revalidate

Cache-Control header is set

Got: public, max-age=0, must-revalidate

ETag present — enables conditional (304) responses

Cache-Control

public, max-age=0, must-revalidate

Directive	Value	Meaning
public	—	Any cache may store this response
max-age	0	Cache for 0 seconds
must-revalidate	—	Must recheck with server after expiry

A+

Page Weight Budget

488 KB transferred, 36 requests

PASS

488 KB transferred, 36 requests

Page weighs 1.3 MB (488 KB transferred)

36 HTTP requests

Estimated 0.10 g CO2 per page load

488 KB transferred

36 requests

0.10 g CO2 per page load

Images 254.7 KiB 52%

JavaScript 106.5 KiB 22%

HTML 62.3 KiB 13%

CSS 58.4 KiB 12%

Other 3.8 KiB 1%

Other 2.3 KiB 0%

0 2.4 MB 4.9 MB

Under budget

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

JS Execution Cost

312ms total JS execution

PASS

312ms total JS execution

https://www.menuella.com/: 235ms CPU time

Unattributable: 78ms CPU time

Main Thread Breakdown

Style & Layout 41% Other 36% Script Evaluation 11% Parse HTML & CSS 6% Rendering 5%

Script	Total	Scripting	Parse/Compile	Party
https://www.menuella.com/	235ms	10ms	2ms	1st
Unattributable	78ms	3ms	0ms	1st

A+

Font Loading

No web fonts (system fonts)

PASS

No web fonts (system fonts)

No web fonts loaded — system fonts are fastest

No web fonts loaded — system fonts are optimal.

A+

JS Bundles

16 scripts, 0 KB unused

PASS

16 scripts, 0 KB unused

0 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://www.menuella.com/_astro/ClientRouter.astro_astro_type_script_index_0_lang.DIZvB5yB.js	7 KB	—	✓	1st
https://www.menuella.com/_astro/page.BAMW0ozK.js	2 KB	—	✓	1st
https://www.menuella.com/_astro/HeaderLanguageSwitcher.astro_astro_type_script_index_0_lang.Bb8KRpDQ.js	2 KB	—	✓	1st
https://www.menuella.com/_astro/HeaderModeToggle.astro_astro_type_script_index_0_lang.Bb8KRpDQ.js	2 KB	—	✓	1st
https://www.menuella.com/_astro/ConsentBanner.astro_astro_type_script_index_0_lang.B6gyzlnd.js	3 KB	—	✓	1st
https://www.menuella.com/_astro/prefetch.BPIFELDh.js	3 KB	—	✓	1st
https://www.menuella.com/_astro/header-controls.urGffqlg.js	4 KB	—	✓	1st
https://www.menuella.com/_astro/client.DXQxaod6.js	2 KB	—	✓	1st
https://www.menuella.com/_astro/HomeHero.ElwY39i5.js	4 KB	—	✓	1st
https://www.menuella.com/_astro/client.svelte.CWZJpBT_.js	2 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+

LCP Image Preload

LCP preload audit not available

PASS

LCP preload audit not available

LCP image preload audit not available for this scan

A+

Main HTML Cache-Control

Main HTML max-age=0 (≤ 5min) is appropriate

PASS

Main HTML max-age=0 (≤ 5min) is appropriate

Got: public, max-age=0, must-revalidate

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).

`ETag` present -- conditional GET supported

Page Weight Inventory

36 resources · 488 KB · 0 KB savings available

PASS

36 resources · 488 KB · 0 KB savings available

Within 1MB page-weight target

Got: 488 KB

12 third-party resources (50% of weight)

36 resources · 488.0 KiB · 12 third-party Within 1MB page-weight target

Image 53% · 258.1 KiB

JavaScript 22% · 106.5 KiB

Document 13% · 62.3 KiB

CSS 12% · 58.4 KiB

Other 1% · 2.7 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

36 resources			488.0 KiB

A+

Green Hosting

Whether the site is served from green-energy infrastructure

PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall

36 requests over 564ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Image Optimization

65 images, 9 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

9 KB

Oversized

32 missing dimensions 17 missing lazy loading

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

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Performance

Page Load Progression

Green Hosting

Image Optimization Audit