Performance

· 25 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

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.

1.54 s

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

2.97 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

90 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.

1.54 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.

3.00 s

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

17 PASS 6 REVIEW

Third-Party Impact

58% third-party, 0 ms blocking

REVIEW

58% third-party, 0 ms blocking

Third-party code accounts for 58% of page weight (308.8 KiB of 537.0 KiB)

Third-party blocking time is low (0 ms)

42%

58%

First-party Third-party

Image Optimization

15 images, 0 KB saveable

REVIEW

15 images, 0 KB saveable

All images are well-optimized

15 images 313 KB

0 oversized -0 KB

4 legacy format

0 missing dimensions CLS risk

JS Execution Cost

Action

1649ms total JS execution

REVIEW

1649ms total JS execution

https://www.menuella.com/: 1080ms CPU time

Unattributable: 390ms CPU time

https://www.menuella.com/_astro/framework.DGMl1FDe...: 100ms CPU time

https://www.menuella.com/_astro/header-controls.ur...: 79ms CPU time

Main Thread Breakdown

Style & Layout 39% Other 37% Script Evaluation 10% Parse HTML & CSS 7% Rendering 5%

Script	Total	Scripting	Parse/Compile	Party
https://www.menuella.com/	1080ms	44ms	8ms	1st
Unattributable	390ms	12ms	0ms	1st
https://www.menuella.com/_astro/framework.DGMl1FDe.js	100ms	81ms	1ms	1st
https://www.menuella.com/_astro/header-controls.urGffqlg.js	79ms	3ms	0ms	1st

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

537 KB transferred, 36 requests

PASS

537 KB transferred, 36 requests

Page weighs 1.4 MB (537 KB transferred)

36 HTTP requests

Estimated 0.11 g CO2 per page load

537 KB transferred

36 requests

0.11 g CO2 per page load

Images 312.6 KiB 58%

JavaScript 99.4 KiB 19%

HTML 62.3 KiB 12%

CSS 56.7 KiB 11%

Other 3.6 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+

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	5 KB	—	✓	1st
https://www.menuella.com/_astro/page.BAMW0ozK.js	0 KB	—	✓	1st
https://www.menuella.com/_astro/HeaderLanguageSwitcher.astro_astro_type_script_index_0_lang.Bb8KRpDQ.js	0 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	1 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

Resource Hints

8 hints, 0 missing preconnects

PASS

8 hints, 0 missing preconnects

2 dns-prefetch redundant with preconnect on same origin

preconnect already does the DNS lookup; adding dns-prefetch to the same origin is at best a no-op. Sample: https://customer-gs13jgtcwl4btnq8.cloudflarestream.com, https://cdn.menuella.net. Remove the redundant dns-prefetch entries.

2 URL(s) appear in multiple hints

The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://customer-gs13jgtcwl4btnq8.cloudflarestream.com (preconnect+dns-prefetch), https://cdn.menuella.net (preconnect+dns-prefetch).

Page uses 8 resource hint(s)

Current Resource Hints

preconnect

preload

dns-prefetch

prefetch

—

8 resource hints configured

Why this matters

Performance issues directly impact user engagement and conversion rates.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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 · 537 KB · 0 KB savings available

PASS

36 resources · 537 KB · 0 KB savings available

Within 1MB page-weight target

Got: 537 KB

12 third-party resources (58% of weight)

36 resources · 537.0 KiB · 12 third-party Within 1MB page-weight target

Image 59% · 316.0 KiB

JavaScript 19% · 99.4 KiB

Document 12% · 62.3 KiB

CSS 11% · 56.7 KiB

Other 0% · 2.6 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

36 resources			537.0 KiB

A+

Render-Blocking Resources

No render-blocking resources detected

PASS

No render-blocking resources detected

No render-blocking resources detected in <head>

A+

Third-Party Resources

No third-party resources detected

PASS

No third-party resources detected

A+

JavaScript Blocking

No render-blocking JS or document.write usage detected

PASS

No render-blocking JS or document.write usage detected

No JavaScript blocking issues detected

A+

CSS Performance Depth

No CSS performance depth issues detected

PASS

No CSS performance depth issues detected

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 676ms

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