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https://rocket703.github.io/evi/

Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
0
REVIEW
6
PASS
13
INFO
3

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

Mobile Desktop
100
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

374 ms

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

474 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.

0.006

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

374 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.

476 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
22
13 PASS 6 REVIEW
C
Page Weight Budget
Action
2.0 MB transferred, 26 requests
REVIEW
2.0 MB transferred, 26 requests
Info::
Page weighs 2.1 MB (2.0 MB transferred)
Warning::
Images are 1.9 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.9 MB
Info::
26 HTTP requests
Info::
Estimated 0.43 g CO2 per page load
2.0 MB / 2.4 MB budget
2.0 MB transferred
26 requests
0.43 g CO2 per page load
Images 1.9 MiB 92%
Fonts 134.6 KiB 6%
HTML 19.5 KiB 1%
Other 5.7 KiB 0%
0 2.4 MB 4.9 MB
Approaching limit

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
B
Document Compression
Document response uses gzip; brotli would be ~20% smaller
REVIEW
Document response uses gzip; brotli would be ~20% smaller
Info::
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.
B
Main HTML Cache-Control
Main HTML max-age=600 (~10min)
REVIEW
Main HTML max-age=600 (~10min)
Info::
Main HTML cached for 10 minutes -- mild staleness risk
Got: max-age=600
B
Server-Timing Observability
No Server-Timing header found
REVIEW
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.
C
Page Weight Inventory
Action
26 resources · 2.0 MB · 0 KB savings available
REVIEW
26 resources · 2.0 MB · 0 KB savings available
Warning::
Page weight 2.0 MB exceeds 1 MB target by 1.0 MB
Got: 2.0 MB Expected: ≤ 1 MB
Info::
4 resources over 200KB
26 resources · 2.0 MiB · 0 third-party 1.0 MiB over 1MB target
Image 93% · 1.9 MiB
Font 6% · 134.6 KiB
Document 1% · 19.5 KiB
A+
Third-Party Impact
No third-party resources
PASS
No third-party resources
Info::
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
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Image Optimization
18 images, 0 KB saveable
PASS
18 images, 0 KB saveable
Info::
All images are well-optimized
18 images 1.9 MB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
204ms total JS execution
PASS
204ms total JS execution
Info::
https://rocket703.github.io/evi/: 146ms CPU time
Info::
Unattributable: 58ms CPU time

Main Thread Breakdown

Style & Layout 42% Other 40% Rendering 10% Script Evaluation 4% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://rocket703.github.io/evi/146ms4ms1ms1st
Unattributable58ms4ms0ms1st
A+
Font Loading
6 fonts (135 KB)
PASS
6 fonts (135 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

135 KB total

Render-blocking

0

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 374 ms LCP 474 mshttps://rocket703.github.io/evi/_astro/roboto-latin-400-normal.BqEyEoaF.woff2roboto-latin-400-normal... https://rocket703.github.io/evi/_astro/roboto-latin-400-normal.BqEyEoaF.woff2 — 21.5 KiB — 15 ms — font-display: swaphttps://rocket703.github.io/evi/_astro/roboto-latin-500-normal.7RbcRiD8.woff2roboto-latin-500-normal... https://rocket703.github.io/evi/_astro/roboto-latin-500-normal.7RbcRiD8.woff2 — 21.8 KiB — 27 ms — font-display: swaphttps://rocket703.github.io/evi/_astro/roboto-latin-600-normal.CzqH9ZEY.woff2roboto-latin-600-normal... https://rocket703.github.io/evi/_astro/roboto-latin-600-normal.CzqH9ZEY.woff2 — 21.9 KiB — 27 ms — font-display: swaphttps://rocket703.github.io/evi/_astro/cormorant-garamond-latin-500-italic.Y14P-dkT.woff2cormorant-garamond-lati... https://rocket703.github.io/evi/_astro/cormorant-garamond-latin-500-italic.Y14P-dkT.woff2 — 23.5 KiB — 22 ms — font-display: swaphttps://rocket703.github.io/evi/_astro/cormorant-garamond-latin-700-italic.1ifP4r4a.woff2cormorant-garamond-lati... https://rocket703.github.io/evi/_astro/cormorant-garamond-latin-700-italic.1ifP4r4a.woff2 — 22.2 KiB — 26 ms — font-display: swaphttps://rocket703.github.io/evi/_astro/cormorant-garamond-latin-600-italic.DCuhXWyK.woff2cormorant-garamond-lati... https://rocket703.github.io/evi/_astro/cormorant-garamond-latin-600-italic.DCuhXWyK.woff2 — 23.6 KiB — 26 ms — font-display: swap
roboto-latin-400-normal... woff2 swap
Size 22 KB
Load time 15 ms
Start 107 ms
Risk FOUT — text flashes from fallback to web font
roboto-latin-500-normal... woff2 swap
Size 22 KB
Load time 27 ms
Start 109 ms
Risk FOUT — text flashes from fallback to web font
roboto-latin-600-normal... woff2 swap
Size 22 KB
Load time 27 ms
Start 109 ms
Risk FOUT — text flashes from fallback to web font
cormorant-garamond-lati... woff2 swap
Size 24 KB
Load time 22 ms
Start 109 ms
Risk FOUT — text flashes from fallback to web font
cormorant-garamond-lati... woff2 swap
Size 22 KB
Load time 26 ms
Start 110 ms
Risk FOUT — text flashes from fallback to web font
cormorant-garamond-lati... woff2 swap
Size 24 KB
Load time 26 ms
Start 110 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
No JavaScript
PASS
No JavaScript
Info::
No JavaScript bundles
No JavaScript files loaded.
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
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
Info::
`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).
Info::
Both `ETag` and `Last-Modified` present -- efficient revalidation supported
The page returns both `ETag` (content hash) and `Last-Modified` (timestamp) headers. Browsers can issue conditional GETs with `If-None-Match` or `If-Modified-Since`; the server returns 304 Not Modified for unchanged content, saving bandwidth. ETag is the more reliable of the two (timestamps fail in DST transitions and clock skew).
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Fastly

A+
HTTP Caching
max-age=600 (10 minutes)
PASS
max-age=600 (10 minutes)
Info::
Cache-Control header is set
Got: max-age=600
Info::
Effective TTL: 10 minutes (max-age=600)
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
Cache-Control

max-age=600

DirectiveValueMeaning
max-age600Cache for 10 minutes
Effective TTL: 600 seconds
Asset Compression
No text asset hosts to measure
INFO
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 Waterfall
26 requests over 288ms
INFO
0 ms 200 ms 400 ms FCP 374 ms LCP 474 mshttps://rocket703.github.io/evi//evi/ https://rocket703.github.io/evi/ — 200 — 19.5 KiB — 7 ms — h2https://rocket703.github.io/evi/images/logo.webp/evi/images/logo.webp https://rocket703.github.io/evi/images/logo.webp — 200 — 12.8 KiB — 5 ms — h2https://rocket703.github.io/evi/images/hero-1400.webp/evi/images/hero-1400.webp https://rocket703.github.io/evi/images/hero-1400.webp — 200 — 92.0 KiB — 146 ms — h2https://rocket703.github.io/evi/images/flourish.svg/evi/images/flourish.svg https://rocket703.github.io/evi/images/flourish.svg — 200 — 775 B — 4 ms — h2https://rocket703.github.io/evi/images/reviews-bg.webp/evi/images/reviews-bg.webp https://rocket703.github.io/evi/images/reviews-bg.webp — 200 — 76.0 KiB — 4 ms — h2https://rocket703.github.io/evi/images/salon-bg.webp/evi/images/salon-bg.webp https://rocket703.github.io/evi/images/salon-bg.webp — 200 — 82.9 KiB — 5 ms — h2https://rocket703.github.io/evi/images/evi.webp/evi/images/evi.webp https://rocket703.github.io/evi/images/evi.webp — 200 — 14.7 KiB — 36 ms — h2https://rocket703.github.io/evi/images/services/reveal/haarschnitt-styling-600.webp/evi/images/services/reveal/haarsch... https://rocket703.github.io/evi/images/services/reveal/haarschnitt-styling-600.webp — 200 — 30.1 KiB — 182 ms — h2https://rocket703.github.io/evi/images/services/reveal/farbe-highlights-600.webp/evi/images/services/reveal/farbe-h... https://rocket703.github.io/evi/images/services/reveal/farbe-highlights-600.webp — 200 — 30.7 KiB — 185 ms — h2https://rocket703.github.io/evi/images/services/reveal/pflege-haarkuren-600.webp/evi/images/services/reveal/pflege-... https://rocket703.github.io/evi/images/services/reveal/pflege-haarkuren-600.webp — 200 — 34.6 KiB — 149 ms — h2https://rocket703.github.io/evi/images/services/reveal/eventfrisuren-600.webp/evi/images/services/reveal/eventfr... https://rocket703.github.io/evi/images/services/reveal/eventfrisuren-600.webp — 200 — 49.5 KiB — 188 ms — h2https://rocket703.github.io/evi/images/services/reveal/brautfrisuren-600.webp/evi/images/services/reveal/brautfr... https://rocket703.github.io/evi/images/services/reveal/brautfrisuren-600.webp — 200 — 50.1 KiB — 155 ms — h2https://rocket703.github.io/evi/images/services/reveal/haarverlaengerungen-600.webp/evi/images/services/reveal/haarver... https://rocket703.github.io/evi/images/services/reveal/haarverlaengerungen-600.webp — 200 — 57.5 KiB — 159 ms — h2https://rocket703.github.io/evi/images/gallery/01-naturlocken.webp/evi/images/gallery/01-naturlocken.... https://rocket703.github.io/evi/images/gallery/01-naturlocken.webp — 200 — 234.9 KiB — 40 ms — h2https://rocket703.github.io/evi/images/gallery/02-lange-locken.webp/evi/images/gallery/02-lange-locken... https://rocket703.github.io/evi/images/gallery/02-lange-locken.webp — 200 — 342.7 KiB — 54 ms — h2https://rocket703.github.io/evi/images/gallery/04-waves.webp/evi/images/gallery/04-waves.webp https://rocket703.github.io/evi/images/gallery/04-waves.webp — 200 — 167.0 KiB — 44 ms — h2https://rocket703.github.io/evi/images/gallery/05-straehnen.webp/evi/images/gallery/05-straehnen.we... https://rocket703.github.io/evi/images/gallery/05-straehnen.webp — 200 — 172.5 KiB — 52 ms — h2https://rocket703.github.io/evi/images/gallery/07-blonde-dunkel.webp/evi/images/gallery/07-blonde-dunke... https://rocket703.github.io/evi/images/gallery/07-blonde-dunkel.webp — 200 — 214.8 KiB — 54 ms — h2https://rocket703.github.io/evi/images/gallery/08-balayage.webp/evi/images/gallery/08-balayage.web... https://rocket703.github.io/evi/images/gallery/08-balayage.webp — 200 — 259.3 KiB — 56 ms — h2https://rocket703.github.io/evi/_astro/roboto-latin-400-normal.BqEyEoaF.woff2/evi/_astro/roboto-latin-400-normal... https://rocket703.github.io/evi/_astro/roboto-latin-400-normal.BqEyEoaF.woff2 — 200 — 21.5 KiB — 15 ms — h2https://rocket703.github.io/evi/_astro/roboto-latin-500-normal.7RbcRiD8.woff2/evi/_astro/roboto-latin-500-normal... https://rocket703.github.io/evi/_astro/roboto-latin-500-normal.7RbcRiD8.woff2 — 200 — 21.8 KiB — 27 ms — h2https://rocket703.github.io/evi/_astro/roboto-latin-600-normal.CzqH9ZEY.woff2/evi/_astro/roboto-latin-600-normal... https://rocket703.github.io/evi/_astro/roboto-latin-600-normal.CzqH9ZEY.woff2 — 200 — 21.9 KiB — 27 ms — h2https://rocket703.github.io/evi/_astro/cormorant-garamond-latin-500-italic.Y14P-dkT.woff2/evi/_astro/cormorant-garamond-lati... https://rocket703.github.io/evi/_astro/cormorant-garamond-latin-500-italic.Y14P-dkT.woff2 — 200 — 23.5 KiB — 22 ms — h2https://rocket703.github.io/evi/_astro/cormorant-garamond-latin-700-italic.1ifP4r4a.woff2/evi/_astro/cormorant-garamond-lati... https://rocket703.github.io/evi/_astro/cormorant-garamond-latin-700-italic.1ifP4r4a.woff2 — 200 — 22.2 KiB — 26 ms — h2https://rocket703.github.io/evi/_astro/cormorant-garamond-latin-600-italic.DCuhXWyK.woff2/evi/_astro/cormorant-garamond-lati... https://rocket703.github.io/evi/_astro/cormorant-garamond-latin-600-italic.DCuhXWyK.woff2 — 200 — 23.6 KiB — 26 ms — h2https://rocket703.github.io/evi/favicon.ico/evi/favicon.ico https://rocket703.github.io/evi/favicon.ico — 200 — 5.7 KiB — 4 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization
26 images, 537 KB total, 12 KB wasted
INFO

Image Optimization Audit

Total Images

26

Total Size

537 KB

Oversized

1

Wasted

12 KB

2 missing dimensions 2 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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