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https://www.mejuri.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
66
GRADE
D
FIX
5
REVIEW
1
PASS
6
INFO
2

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

Mobile Desktop
40
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
73
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

1.83 s

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

3.01 s

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

760 ms

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

0.093

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

3.38 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.

6.36 s

Page Load Progression

1.1 s
2.1 s
3.2 s
4.3 s
5.4 s
6.5 s
7.5 s
8.6 s
Checks
14
6 PASS 1 REVIEW 5 FIX
F
Page Weight Budget
Action
8.7 MB transferred, 173 requests
FIX
8.7 MB transferred, 173 requests
Critical::
Page weighs 17.5 MB (8.7 MB transferred)
Warning::
Images are 3.4 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.4 MB
Warning::
JavaScript is 1.7 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.7 MB
Warning::
173 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.8 g CO2 per page load
8.7 MB / 2.4 MB budget
8.7 MB transferred
173 requests
1.8 g CO2 per page load
Images 3.4 MiB 40%
Other 3.0 MiB 35%
JavaScript 1.7 MiB 20%
HTML 181.8 KiB 2%
Fonts 135.7 KiB 2%
Other 52.1 KiB 1%
Other 34.5 KiB 0%
CSS 29.1 KiB 0%
Other 4.8 KiB 0%
Other 4.6 KiB 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

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (8.7 MiB of 8.7 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
5164ms total JS execution
FIX
5164ms total JS execution
Warning::
https://cdn.shopify.com/oxygen-v2/32888/22641/4695...: 1593ms CPU time
Warning::
Unattributable: 947ms CPU time
Warning::
https://mejuri.com/eu/en/: 892ms CPU time
Warning::
https://6156e3dbcc93.cdn4.forter.com/sn/6156e3dbcc...: 407ms CPU time
Warning::
https://cdn.cookielaw.org/scripttemplates/202508.1...: 254ms CPU time
Warning::
Third-party scripts: 5164ms (100% of total)

Main Thread Breakdown

Script Evaluation 55% Other 23% Style & Layout 10% Script Parsing & Compilation 5%
ScriptTotalScriptingParse/CompileParty
https://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/client-UH6AlUJK.js1593ms1426ms2ms3rd
Unattributable947ms119ms0ms3rd
https://mejuri.com/eu/en/892ms35ms38ms3rd
https://6156e3dbcc93.cdn4.forter.com/sn/6156e3dbcc93/script.js407ms363ms20ms3rd
https://cdn.cookielaw.org/scripttemplates/202508.1.0/otBannerSdk.js254ms163ms24ms3rd
(program):2207ms94ms0ms3rd
https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMw.js174ms144ms24ms3rd
https://analytics.mejuri.com/next-integrations/integrations/vendor/commons.59560acdd69ed701c941.js.gz107ms91ms8ms3rd
https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js102ms89ms11ms3rd
https://connect.facebook.net/en_US/fbevents.js96ms64ms28ms3rd

Showing top 10 of 16 scripts

F
JS Bundles
Action
78 scripts, 758 KB unused
FIX
78 scripts, 758 KB unused
Warning::
https://cdn.shopify.com/oxygen-v2/32888/22641/4695...: 127 KB unused (66%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.shopify.com/oxygen-v2/32888/22641/4695...: 100 KB unused (78%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.shopify.com/oxygen-v2/32888/22641/4695...: 87 KB unused (76%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://6156e3dbcc93.cdn4.forter.com/sn/6156e3dbcc...: 84 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202508.1...: 63 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 758 KB
758 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/root-Do5z0DXs.js192 KB127 KB (66%)✓3rd
https://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/proxy-Yp_daM8R.js128 KB100 KB (78%)✓3rd
https://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/ProductCardContainer-cATFR57K.js114 KB87 KB (76%)✓3rd
https://6156e3dbcc93.cdn4.forter.com/sn/6156e3dbcc93/script.js214 KB84 KB (40%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202508.1.0/otBannerSdk.js120 KB63 KB (52%)✓3rd
https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMw.js110 KB56 KB (51%)✓3rd
https://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/Link-DczyyFpn.js75 KB47 KB (64%)✓3rd
https://connect.facebook.net/en_US/fbevents.js95 KB42 KB (44%)✓3rd
https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js57 KB38 KB (67%)✓3rd
https://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/index-BSl3r9HC.js44 KB35 KB (80%)✓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

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

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

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

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

D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: private, no-store
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, no-store

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
no-store—Never cache this response
B
Image Optimization
43 images, 0 KB saveable
REVIEW
43 images, 0 KB saveable
Warning::
https://cdn.sanity.io/images/lb60gqpm/staging/644e... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://res.cloudinary.com/mejuri-com/image/upload... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
43 images 3.4 MB
0 oversized -0 KB
4 legacy format
2 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

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+
Font Loading
4 fonts (136 KB)
PASS
4 fonts (136 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

136 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s FCP 1.8 s LCP 3.0 shttps://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/SimonMono-Regular-CDZgw6vh.woff2SimonMono-Regular-CDZgw... https://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/SimonMono-Regular-CDZgw6vh.woff2 — 31.5 KiB — 0 ms — font-display: swaphttps://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/SyndicatGrotesk-Regular-KAIIE6vN.woff2SyndicatGrotesk-Regular... https://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/SyndicatGrotesk-Regular-KAIIE6vN.woff2 — 35.0 KiB — 0 ms — font-display: swaphttps://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/SyndicatGrotesk-Medium-DpkNCPc1.woff2SyndicatGrotesk-Medium-... https://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/SyndicatGrotesk-Medium-DpkNCPc1.woff2 — 36.6 KiB — 0 ms — font-display: swaphttps://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/SimonMono-Bold-C2rGJ_43.woff2SimonMono-Bold-C2rGJ_43... https://cdn.shopify.com/oxygen-v2/32888/22641/46951/3300147/assets/SimonMono-Bold-C2rGJ_43.woff2 — 32.6 KiB — 0 ms — font-display: swap
SimonMono-Regular-CDZgw... woff2 swap
Size 31 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SyndicatGrotesk-Regular... woff2 swap
Size 35 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SyndicatGrotesk-Medium-... woff2 swap
Size 37 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SimonMono-Bold-C2rGJ_43... woff2 swap
Size 33 KB
Load time 0 ms
Start 0 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+
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+
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
173 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 5164ms · 1133KB · €27/mo
cdn.shopify.com
Other
Costly
Execution 1593ms
Transfer 52 KB
Monthly Cost €8/mo
Unattributable
Other
Costly
Execution 947ms
Transfer 0 KB
Monthly Cost €5/mo
mejuri.com
Other
Costly
Execution 892ms
Transfer 181 KB
Monthly Cost €5/mo
6156e3dbcc93.cdn4.forter.com
Other
Costly
Execution 407ms
Transfer 214 KB
Unused 40%
Monthly Cost €2/mo
OneTrust
Consent
Essential
Execution 254ms
Transfer 120 KB
Unused 52%
Monthly Cost €1/mo
(program):2
Other
Costly
Execution 207ms
Transfer 0 KB
Monthly Cost €1/mo
analytics.tiktok.com
Other
Optional
Execution 174ms
Transfer 110 KB
Unused 51%
Monthly Cost €1/mo
analytics.mejuri.com
Other
Optional
Execution 107ms
Transfer 22 KB
Monthly Cost €1/mo
Hotjar
Session Replay
Optional
Execution 102ms
Transfer 57 KB
Unused 67%
Monthly Cost €1/mo
Facebook Pixel
Advertising
Optional
Execution 96ms
Transfer 95 KB
Unused 44%
Monthly Cost €1/mo
global.localizecdn.com
Other
Optional
Execution 96ms
Transfer 27 KB
Monthly Cost €1/mo
analytics.mejuri.com
Other
Optional
Execution 67ms
Transfer 57 KB
Unused 58%
Monthly Cost €0/mo
cdn.shopify.com
Other
Optional
Execution 60ms
Transfer 128 KB
Unused 78%
Monthly Cost €0/mo
cdn.shopify.com
Other
Optional
Execution 58ms
Transfer 20 KB
Monthly Cost €0/mo
OneTrust
Consent
Essential
Execution 54ms
Transfer 9 KB
Monthly Cost €0/mo
Facebook Pixel
Advertising
Optional
Execution 52ms
Transfer 38 KB
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • cdn.shopify.com adds 1593ms and costs ~€8/month
  • Unattributable adds 947ms and costs ~€5/month
  • mejuri.com adds 892ms and costs ~€5/month
  • 6156e3dbcc93.cdn4.forter.com adds 407ms and costs ~€2/month
  • (program):2 adds 207ms and costs ~€1/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

cdn.shopify.com takes 1593ms 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

Unattributable takes 947ms 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

mejuri.com takes 892ms 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

6156e3dbcc93.cdn4.forter.com takes 407ms 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

52% of OneTrust's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

(program):2 takes 207ms 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

51% of analytics.tiktok.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

67% of Hotjar's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

58% of analytics.mejuri.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

78% of cdn.shopify.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

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.

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