Performance

· 17 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

Accessibility

100

Best Practices

SEO

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

2.34 s

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

5.73 s

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

104 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.035

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

6.84 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.

11.23 s

Page Load Progression

1.3 s

2.6 s

3.8 s

5.1 s

6.4 s

7.7 s

9.0 s

10.2 s

Checks

8 PASS 3 REVIEW 4 FIX

Page Weight Budget

Action

4.9 MB transferred, 77 requests

FIX

4.9 MB transferred, 77 requests

Page weighs 6.3 MB (4.9 MB transferred)

Images are 3.7 MB — compress or use modern formats

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

Got: 3.7 MB

Fonts are 392 KB — consider subsetting or using system fonts

Subset fonts to include only used characters, or switch to system font stacks.

Got: 392 KB

77 HTTP requests

Estimated 1.0 g CO2 per page load

4.9 MB transferred

77 requests

1.0 g CO2 per page load

Images 3.7 MiB 75%

Other 532.5 KiB 11%

Fonts 392.0 KiB 8%

JavaScript 270.5 KiB 5%

HTML 33.3 KiB 1%

CSS 32.2 KiB 1%

Other 1.8 KiB 0%

Other 134 B 0%

Other 0 B 0%

0 2.4 MB 4.9 MB

Over budget

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

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

Third-Party Impact

Action

77% third-party, 0 ms blocking

FIX

77% third-party, 0 ms blocking

Third-party code accounts for 77% of page weight (3.8 MiB of 4.9 MiB)

Third-party blocking time is low (0 ms)

23%

77%

First-party Third-party

JS Execution Cost

Action

36554ms total JS execution

FIX

36554ms total JS execution

https://mez.ink/: 29948ms CPU time

https://mez.ink/mezink-web/_next/static/chunks/211...: 2580ms CPU time

Unattributable: 2016ms CPU time

https://mez.ink/mezink-web/_next/static/chunks/fd9...: 850ms CPU time

https://mez.ink/mezink-web/_next/static/chunks/838...: 759ms CPU time

Third-party scripts: 2197ms (6% of total)

Main Thread Breakdown

Other 43% Rendering 25% Style & Layout 22% Script Evaluation 9%

Script	Total	Scripting	Parse/Compile	Party
https://mez.ink/	29948ms	79ms	26ms	1st
https://mez.ink/mezink-web/_next/static/chunks/2117-78579c6a0d6a0dcd.js	2580ms	2331ms	17ms	1st
Unattributable	2016ms	12ms	0ms	3rd
https://mez.ink/mezink-web/_next/static/chunks/fd9d1056-70763ffa71ed5324.js	850ms	238ms	20ms	1st
https://mez.ink/mezink-web/_next/static/chunks/8382-9e4434d0c17bb1b2.js	759ms	182ms	50ms	1st
https://mez.ink/mezink-web/_next/static/chunks/webpack-ffb7e7628afde9c1.js	220ms	214ms	1ms	1st
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516	181ms	107ms	4ms	3rd

Page Weight Inventory

Action

77 resources · 4.9 MB · 68 KB savings available

FIX

77 resources · 4.9 MB · 68 KB savings available

Page weight 3.9 MB over 1MB target

Got: 4.9 MB Expected: ≤ 1 MB

~68 KB of savings available

21 third-party resources (77% of weight)

6 resources over 200KB

77 resources · 4.9 MiB · 21 third-party 3.9 MiB over 1MB target

Image 75% · 3.7 MiB

Other 11% · 531.1 KiB

Font 8% · 392.0 KiB

JavaScript 5% · 270.5 KiB

Document 1% · 34.8 KiB

CSS 1% · 32.2 KiB

~68.1 KiB of savings available

Remove unused JavaScript: 68.1 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

77 resources			4.9 MiB

Image Optimization

44 images, 0 KB saveable

REVIEW

44 images, 0 KB saveable

All images are well-optimized

44 images 3.7 MB

0 oversized -0 KB

6 legacy format

0 missing dimensions CLS risk

JS Bundles

11 scripts, 68 KB unused

REVIEW

11 scripts, 68 KB unused

https://mez.ink/mezink-web/_next/static/chunks/838...: 68 KB unused (51%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 68 KB

68 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://mez.ink/mezink-web/_next/static/chunks/8382-9e4434d0c17bb1b2.js	133 KB	68 KB (51%)	✓	1st
https://mez.ink/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js	1 KB	—	✓	1st
https://mez.ink/mezink-web/_next/static/chunks/webpack-ffb7e7628afde9c1.js	5 KB	—	✓	1st
https://mez.ink/mezink-web/_next/static/chunks/fd9d1056-70763ffa71ed5324.js	53 KB	—	✓	1st
https://mez.ink/mezink-web/_next/static/chunks/2117-78579c6a0d6a0dcd.js	37 KB	—	✓	1st
https://mez.ink/mezink-web/_next/static/chunks/main-app-67ac5cd507b9ed38.js	0 KB	—	✓	1st
https://mez.ink/mezink-web/_next/static/chunks/9467-01744062861e4771.js	7 KB	—	✓	1st
https://mez.ink/mezink-web/_next/static/chunks/3608-e939ad10a106a160.js	10 KB	—	✓	1st
https://mez.ink/mezink-web/_next/static/chunks/app/page-a6d8659715e08965.js	13 KB	—	✓	1st
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516	11 KB	—	✓	3rd

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

HTTP Caching

s-maxage=31536000, stale-while-revalidate

REVIEW

s-maxage=31536000, stale-while-revalidate

Cache-Control header is set

Got: s-maxage=31536000, stale-while-revalidate

CDN TTL: 52 weeks (s-maxage=31536000)

No ETag or Last-Modified header

Conditional requests (304 Not Modified) are not possible without validators.

Cache-Control

s-maxage=31536000, stale-while-revalidate

Directive	Value	Meaning
s-maxage	31536000	CDN caches for 52 weeks
stale-while-revalidate	—	Serve stale while revalidating

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Font Loading

2 fonts (392 KB)

PASS

2 fonts (392 KB)

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

Web fonts

392 KB total

Render-blocking

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

e4af272ccee01ff0-s.p.woff2 woff2 swap

Size 47 KB

Load time 33 ms

Start 1.6 s

Risk FOUT — text flashes from fallback to web font

InterVariable.woff2 woff2 swap

Size 345 KB

Load time 2.7 s

Start 1.7 s

Risk FOUT — text flashes from fallback to web font

Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need

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)

Fixing the unchecked items could save ~172 KB and ~344 ms

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

14 hints, 0 missing preconnects

PASS

14 hints, 0 missing preconnects

Page uses 14 resource hint(s)

Current Resource Hints

preconnect

—

preload

dns-prefetch

—

prefetch

—

14 resource hints configured

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+

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

77 requests over 39619ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

Per-script blocking time, transfer cost, and cache headers

INFO

6% of JavaScript execution is third-party

First-party Third-party 2197ms · 11KB · €24/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
Unattributable Unattributable	Other	2016ms	0 KB	—	€22/mo	Costly
static.cloudflareinsights.com static.cloudflareinsights.com	Other	181ms	11 KB	—	€2/mo	Optional

Unattributable

Other

Costly

Execution 2016ms

Transfer 0 KB

Monthly Cost €22/mo

static.cloudflareinsights.com

Other

Optional

Execution 181ms

Transfer 11 KB

Monthly Cost €2/mo

These scripts may cost more than they're worth

Unattributable adds 2016ms and costs ~€22/month

Unattributable takes 2016ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

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

Browse & Analyze

Learn

Performance

Page Load Progression

Font loading timeline

Optimization checklist

Green Hosting

These scripts may cost more than they're worth