Performance

· 28 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

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.

4.65 s

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

23.84 s

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

3.63 s

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.

10.02 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.

42.63 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

13 PASS 6 REVIEW 5 FIX

Page Weight Budget

Action

6.3 MB transferred, 673 requests

FIX

6.3 MB transferred, 673 requests

Page weighs 15.2 MB (6.3 MB transferred)

JavaScript is 3.0 MB — consider code splitting or lazy loading

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

Got: 3.0 MB

Images are 1.1 MB — compress or use modern formats

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

Got: 1.1 MB

Fonts are 264 KB — consider subsetting or using system fonts

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

Got: 264 KB

673 HTTP requests — consider bundling or reducing

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

Estimated 1.3 g CO2 per page load

6.3 MB transferred

673 requests

1.3 g CO2 per page load

JavaScript 3.0 MiB 48%

Other 1.4 MiB 22%

Images 1.1 MiB 17%

Fonts 264.4 KiB 4%

HTML 241.8 KiB 4%

Other 196.5 KiB 3%

CSS 84.6 KiB 1%

Other 38.5 KiB 1%

Other 12.1 KiB 0%

Other 0 B 0%

0 2.4 MB 4.9 MB

Over budget

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

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

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

JS Execution Cost

Action

31111ms total JS execution

FIX

31111ms total JS execution

https://cleobella.com/: 13807ms CPU time

Unattributable: 4484ms CPU time

https://cleobella.com/cdn/wpm/b212ce547w31cd49a8p9...: 3717ms CPU time

https://cdn.routeapp.io/route-widget-shopify/v2/ro...: 1102ms CPU time

https://cdn.shopify.com/extensions/01a167bb-a838-7...: 696ms CPU time

Third-party scripts: 7624ms (25% of total)

Main Thread Breakdown

Script Evaluation 33% Other 30% Style & Layout 26% Script Parsing & Compilation 4% Rendering 4%

Script	Total	Scripting	Parse/Compile	Party
https://cleobella.com/	13807ms	266ms	74ms	1st
Unattributable	4484ms	289ms	0ms	1st
https://cleobella.com/cdn/wpm/b212ce547w31cd49a8p9bec2579mf0e5c5cam.js	3717ms	2200ms	39ms	1st
https://cdn.routeapp.io/route-widget-shopify/v2/route-widget-shopify-stable-v2.min.js?shop=cleobella.myshopify.com	1102ms	1024ms	19ms	3rd
https://cdn.shopify.com/extensions/01a167bb-a838-75c9-b748-dee933f72ff6/swym-relay-862/assets/swym-ext-shopify.js	696ms	522ms	45ms	3rd
https://www.googletagmanager.com/gtag/js?id=AW-927930373	487ms	419ms	64ms	3rd
https://cdn.rebuyengine.com/onsite/js/global-4acfb30b81b0a18d696e.js	436ms	315ms	118ms	3rd
https://www.googletagmanager.com/gtag/js?id=GT-K8D4XCCG	422ms	290ms	68ms	3rd
https://www.googletagmanager.com/gtag/js?id=G-BXNY0N96SS	410ms	325ms	82ms	3rd
https://connect.facebook.net/signals/config/1263382667027173?v=2.9.427&r=stable&domain=cleobella.com&im=1&hme=766752a074f0cb0756dd3275a46fdecbcfe3de1ab8f573546734b619e44d384f&ex_m=118%2C241%2C171%2C27%2C82%2C83%2C162%2C78%2C77%2C11%2C181%2C102%2C20%2C153%2C141%2C46%2C85%2C90%2C149%2C176%2C183%2C8%2C4%2C5%2C7%2C6%2C3%2C103%2C115%2C32%2C17%2C31%2C18%2C33%2C34%2C35%2C37%2C55%2C163%2C87%2C126%2C22%2C24%2C51%2C47%2C49%2C48%2C95%2C104%2C108%2C124%2C160%2C164%2C53%2C125%2C29%2C26%2C133%2C79%2C43%2C166%2C165%2C167%2C157%2C155%2C30%2C42%2C66%2C123%2C178%2C80%2C21%2C128%2C93%2C76%2C23%2C97%2C98%2C130%2C96%2C151%2C150%2C154%2C109%2C177%2C180%2C41%2C56%2C127%2C54%2C161%2C72%2C185%2C110%2C184%2C210%2C255%2C84%2C274%2C273%2C272%2C14%2C25%2C28%2C40%2C62%2C117%2C68%2C10%2C73%2C111%2C112%2C113%2C119%2C144%2C38%2C36%2C146%2C147%2C148%2C143%2C142%2C172%2C86%2C175%2C173%2C174%2C57%2C69%2C67%2C137%2C19%2C179%2C52%2C324%2C325%2C326%2C323%2C340%2C362%2C248%2C237%2C70%2C238%2C236%2C365%2C356%2C59%2C249%2C121%2C145%2C92%2C135%2C61%2C134%2C140%2C139%2C65%2C74%2C168%2C88%2C89%2C129%2C44%2C39%2C60%2C63%2C114%2C182%2C1%2C138%2C16%2C136%2C12%2C2%2C64%2C105%2C15%2C75%2C71%2C132%2C101%2C100%2C187%2C188%2C106%2C107%2C9%2C116%2C186%2C58%2C158%2C99%2C91%2C81%2C131%2C120%2C169%2C50%2C159%2C0%2C94%2C152%2C156%2C170%2C45%2C122%2C13%2C189	352ms	293ms	55ms	3rd

Showing top 10 of 50 scripts

JS Bundles

Action

411 scripts, 1.0 MB unused

FIX

411 scripts, 1.0 MB unused

https://cdn.rebuyengine.com/onsite/js/global-4acfb...: 174 KB unused (72%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=GT-K8D...: 118 KB unused (75%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=AW-927...: 117 KB unused (70%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=GT-K8D...: 70 KB unused (46%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=G-BXNY...: 69 KB unused (36%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 1.0 MB

1063 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://cdn.rebuyengine.com/onsite/js/global-4acfb30b81b0a18d696e.js	241 KB	174 KB (72%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=GT-K8D4XCCG&cx=c&gtm=4e6am0h2	156 KB	118 KB (75%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=AW-927930373&cx=c&gtm=4e6am0h2	167 KB	117 KB (70%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=GT-K8D4XCCG	155 KB	70 KB (46%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=G-BXNY0N96SS	192 KB	69 KB (36%)	✓	3rd
https://cdn.shopify.com/extensions/01a167bb-a838-75c9-b748-dee933f72ff6/swym-relay-862/assets/storefront-layout-components.js	83 KB	63 KB (76%)	✗	3rd
https://cdn.shopify.com/extensions/01a167bb-a838-75c9-b748-dee933f72ff6/swym-relay-862/assets/storefront-layout-components.js	83 KB	63 KB (76%)	✗	3rd
https://www.googletagmanager.com/gtag/js?id=AW-927930373	165 KB	56 KB (34%)	✓	3rd
https://cdn.shopify.com/extensions/01a167bb-a838-75c9-b748-dee933f72ff6/swym-relay-862/assets/swym-ext-shopify.js	77 KB	40 KB (52%)	✓	3rd
https://cdn.shopify.com/extensions/01a167bb-a838-75c9-b748-dee933f72ff6/swym-relay-862/assets/swym-ext-shopify.js	77 KB	40 KB (52%)	✓	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

Page Weight Inventory

Action

673 resources · 6.3 MB · 1.0 MB savings available

FIX

673 resources · 6.3 MB · 1.0 MB savings available

Page weight 6.3 MB exceeds 1 MB target by 5.3 MB

Got: 6.3 MB Expected: ≤ 1 MB

~1.0 MB of savings available

319 third-party resources (52% of weight)

1 resources over 200KB

673 resources · 6.3 MiB · 319 third-party 5.3 MiB over 1MB target

JavaScript 70% · 4.4 MiB

Image 19% · 1.2 MiB

Font 4% · 264.4 KiB

Document 4% · 250.1 KiB

CSS 3% · 169.8 KiB

Other 1% · 62.2 KiB

~1.0 MiB of savings available

Remove unused JavaScript: 1.0 MiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

673 resources			6.3 MiB

HTTP Caching

Action

No cache headers

FIX

No cache headers

No Cache-Control header found

Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

Third-Party Impact

52% third-party, 0 ms blocking

REVIEW

52% third-party, 0 ms blocking

Third-party code accounts for 52% of page weight (3.3 MiB of 6.3 MiB)

Third-party blocking time is low (0 ms)

48%

52%

First-party Third-party

Image Optimization

41 images, 0 KB saveable

REVIEW

41 images, 0 KB saveable

All images are well-optimized

41 images 1.1 MB

0 oversized -0 KB

10 legacy format

0 missing dimensions CLS risk

Resource Hints

218 hints, 0 missing preconnects

REVIEW

218 hints, 0 missing preconnects

8 preconnect hints -- excessive (recommended: <=6)

Each preconnect eagerly opens a TCP+TLS connection. On slow networks or low-end devices, too many parallel connections cause head-of-line blocking and starve the connections that matter for LCP. Trim to the 4-6 highest-value origins (the ones serving render-blocking or LCP resources).

4 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://rebuyengine.com, https://cached.rebuyengine.com, https://cdn.rebuyengine.com (+1 more). Remove the redundant dns-prefetch entries.

4 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://cached.rebuyengine.com (preconnect+dns-prefetch), https://rebuyengine.com (preconnect+dns-prefetch), https://cdn.rebuyengine.com (preconnect+dns-prefetch) (+1 more).

Page uses 218 resource hint(s)

Current Resource Hints

preconnect

preload

dns-prefetch

prefetch

+186

196

218 resource hints configured

Why this matters

Informational: a labeled value pair from the audit.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Main HTML Cache-Control

No Cache-Control header on main HTML response

REVIEW

No Cache-Control header on main HTML response

Main HTML response has no Cache-Control header

Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.

JavaScript Blocking

2 JS blocking issue(s) detected

REVIEW

2 JS blocking issue(s) detected

4 render-blocking <script src> tag(s) without async/defer

Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.

Total JS execution time is 31.1 s -- over the 3.5s budget

Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.

CSS Performance Depth

3 CSS depth issue(s) detected

REVIEW

3 CSS depth issue(s) detected

31 render-blocking stylesheet(s) -- recommended: <=3

Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.

1 `@import` rule(s) in inline `<style>` blocks -- chains an extra round-trip

Each `@import` in CSS forces a serial dependency: the parent stylesheet must download and parse before the browser even knows which URL to fetch next. This used to be catastrophic on HTTP/1.1; HTTP/2 and HTTP/3 multiplexing make it less painful but still strictly worse than declaring `<link rel="stylesheet">` siblings. Replace `@import url(...)` with `<link rel="stylesheet" href="...">` in HTML so the browser discovers and fetches in parallel.

1 `@font-face` rule(s) without `font-display` -- causes FOIT

An `@font-face` rule without `font-display` causes Flash of Invisible Text (FOIT): the browser hides the styled text for up to 3 seconds while the custom font downloads, then either swaps to fallback (Chrome / Firefox) or stays invisible (older Safari). Add `font-display: swap` (shows fallback immediately, swaps in the custom font when ready) or `font-display: optional` (uses fallback if the font isn't ready in 100ms; never causes visible swap). Either eliminates FOIT outright.

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Font Loading

11 fonts (264 KB)

PASS

11 fonts (264 KB)

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

Web fonts

264 KB total

Render-blocking

of 11

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

metrosans-400.woff2 woff2 swap

Size 1 KB

Load time 302 ms

Start 703 ms

Risk FOUT — text flashes from fallback to web font

metrosans-700.woff2 woff2 swap

Size 17 KB

Load time 132 ms

Start 703 ms

Risk FOUT — text flashes from fallback to web font

Ayer-400.woff2 woff2 swap

Size 29 KB

Load time 59 ms

Start 703 ms

Risk FOUT — text flashes from fallback to web font

Ayer-500.woff2 woff2 swap

Size 30 KB

Load time 45 ms

Start 704 ms

Risk FOUT — text flashes from fallback to web font

Ayer-400-italic.woff2 woff2 swap

Size 32 KB

Load time 31 ms

Start 704 ms

Risk FOUT — text flashes from fallback to web font

metrosans-700.woff2 woff2 swap

Size 17 KB

Load time 65 ms

Start 990 ms

Risk FOUT — text flashes from fallback to web font

Ayer-400.woff2 woff2 swap

Size 29 KB

Load time 80 ms

Start 990 ms

Risk FOUT — text flashes from fallback to web font

metrosans-500.woff2 woff2 swap

Size 17 KB

Load time 86 ms

Start 991 ms

Risk FOUT — text flashes from fallback to web font

Ayer-500.woff2 woff2 swap

Size 30 KB

Load time 86 ms

Start 992 ms

Risk FOUT — text flashes from fallback to web font

Ayer-400-italic.woff2 woff2 swap

Size 32 KB

Load time 71 ms

Start 993 ms

Risk FOUT — text flashes from fallback to web font

AyerDeck-Regular-Web.woff woff swap

Size 28 KB

Load time 12 ms

Start 3.0 s

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

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 ~8 KB and ~16 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+

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+

Document Compression

Document response uses brotli

PASS

Document response uses brotli

Main HTML response uses brotli (Content-Encoding: br)

Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.

Asset Compression

1 of 7 asset hosts still on gzip

PASS

1 of 7 asset hosts still on gzip

cdn.shopify.com serves assets with brotli (assets: 20)

Got: cdn.shopify.com (text/javascript)

static.klaviyo.com serves assets with brotli (assets: 7)

Got: static.klaviyo.com (application/javascript)

cdn.rebuyengine.com serves assets with brotli (assets: 6)

Got: cdn.rebuyengine.com (application/javascript)

shopify-extension.getredo.com serves assets with brotli (assets: 5)

Got: shopify-extension.getredo.com (text/javascript)

static-tracking.klaviyo.com serves assets with brotli (assets: 5)

Got: static-tracking.klaviyo.com (text/javascript)

www.googletagmanager.com serves assets with brotli (assets: 5)

Got: www.googletagmanager.com (application/javascript)

bat.bing.com serves assets with gzip; brotli would be ~20% smaller (assets: 3)

Every current browser accepts brotli. On a CDN this is a per-pull-zone toggle (Cloudflare, Fastly, CloudFront, CDN77, Bunny all expose it); on an origin it needs the brotli module (nginx-brotli, Apache mod_brotli). The saving lands on the assets this host serves, not on the HTML document -- the document's own encoding is reported separately.

Got: bat.bing.com (application/javascript)

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+

Server-Timing Observability

1 Server-Timing entries advertised

PASS

1 Server-Timing entries advertised

Server-Timing header advertises 1 timing entries

Server Response Intelligence

2 server-response signal(s) detected

PASS

2 server-response signal(s) detected

Compressed response missing `Vary` header

The page is served with `Content-Encoding: br` but has no `Vary` header. Without `Vary: Accept-Encoding`, intermediary caches (corporate proxies, ISP caches) may serve the compressed variant to clients that didn't send the matching `Accept-Encoding` -- the client sees garbled bytes. Add `Vary: Accept-Encoding` whenever the response is conditionally compressed.

No `ETag` or `Last-Modified` -- conditional GET not supported

Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.

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

673 requests over 38451ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

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

INFO

25% of JavaScript execution is third-party

First-party Third-party 7624ms · 2000KB · €40/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
cdn.routeapp.io cdn.routeapp.io	Other	1102ms	36 KB	64%	€6/mo	Costly
cdn.shopify.com cdn.shopify.com	Other	696ms	77 KB	52%	€4/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	487ms	165 KB	34%	€3/mo	Costly
cdn.rebuyengine.com cdn.rebuyengine.com	Other	436ms	241 KB	72%	€2/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	422ms	155 KB	46%	€2/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	410ms	192 KB	36%	€2/mo	Costly
Facebook Pixel connect.facebook.net	Advertising	352ms	105 KB	31%	€2/mo	Costly
Facebook Pixel connect.facebook.net	Advertising	309ms	112 KB	34%	€2/mo	Costly
pskzt.cleobella.com pskzt.cleobella.com	Other	275ms	51 KB	59%	€1/mo	Costly
d2rp1k1dldbai6.cloudfront.net d2rp1k1dldbai6.cloudfront.net	Other	262ms	21 KB	—	€1/mo	Costly
cdn.shopify.com cdn.shopify.com	Other	237ms	14 KB	—	€1/mo	Costly
static.klaviyo.com static.klaviyo.com	Other	217ms	8 KB	—	€1/mo	Costly
Microsoft Clarity scripts.clarity.ms	Session Replay	208ms	25 KB	—	€1/mo	Costly
cdn.rebuyengine.com cdn.rebuyengine.com	Other	167ms	32 KB	71%	€1/mo	Optional
files1.cybba.solutions files1.cybba.solutions	Other	140ms	26 KB	—	€1/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	139ms	42 KB	53%	€1/mo	Optional
cdnjs cdnjs.cloudflare.com	CDN	128ms	29 KB	—	€1/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	127ms	50 KB	46%	€1/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	126ms	23 KB	—	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	114ms	167 KB	70%	€1/mo	Optional
static.klaviyo.com static.klaviyo.com	Other	112ms	15 KB	—	€1/mo	Optional
protection-widget.route.com protection-widget.route.com	Other	105ms	57 KB	42%	€1/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	101ms	1 KB	—	€1/mo	Optional
cdn-widgetsrepository.yotpo.com cdn-widgetsrepository.yotpo.com	Other	100ms	23 KB	—	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	94ms	156 KB	75%	€0/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	91ms	0 KB	—	€0/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	84ms	83 KB	76%	€0/mo	Optional
sdk.beamimpact.com sdk.beamimpact.com	Other	78ms	7 KB	—	€0/mo	Optional
static.klaviyo.com static.klaviyo.com	Other	77ms	3 KB	—	€0/mo	Optional
d2mjzob2nc713b.cloudfront.net d2mjzob2nc713b.cloudfront.net	Other	77ms	24 KB	—	€0/mo	Optional
sdk.beamimpact.com sdk.beamimpact.com	Other	69ms	2 KB	—	€0/mo	Optional
cdn-widgetsrepository.yotpo.com cdn-widgetsrepository.yotpo.com	Other	67ms	16 KB	—	€0/mo	Optional
js.adsrvr.org js.adsrvr.org	Other	61ms	15 KB	—	€0/mo	Optional
d2mjzob2nc713b.cloudfront.net d2mjzob2nc713b.cloudfront.net	Other	54ms	6 KB	—	€0/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	51ms	5 KB	—	€0/mo	Optional
cdn.rebuyengine.com cdn.rebuyengine.com	Other	50ms	13 KB	—	€0/mo	Optional

cdn.routeapp.io

Other

Costly

Execution 1102ms

Transfer 36 KB

Unused 64%

Monthly Cost €6/mo

cdn.shopify.com

Other

Costly

Execution 696ms

Transfer 77 KB

Unused 52%

Monthly Cost €4/mo

Google Tag Manager

Tag Manager

Costly

Execution 487ms

Transfer 165 KB

Unused 34%

Monthly Cost €3/mo

cdn.rebuyengine.com

Other

Costly

Execution 436ms

Transfer 241 KB

Unused 72%

Monthly Cost €2/mo

Google Tag Manager

Tag Manager

Costly

Execution 422ms

Transfer 155 KB

Unused 46%

Monthly Cost €2/mo

Google Tag Manager

Tag Manager

Costly

Execution 410ms

Transfer 192 KB

Unused 36%

Monthly Cost €2/mo

Facebook Pixel

Advertising

Costly

Execution 352ms

Transfer 105 KB

Unused 31%

Monthly Cost €2/mo

Facebook Pixel

Advertising

Costly

Execution 309ms

Transfer 112 KB

Unused 34%

Monthly Cost €2/mo

pskzt.cleobella.com

Other

Costly

Execution 275ms

Transfer 51 KB

Unused 59%

Monthly Cost €1/mo

d2rp1k1dldbai6.cloudfront.net

Other

Costly

Execution 262ms

Transfer 21 KB

Monthly Cost €1/mo

cdn.shopify.com

Other

Costly

Execution 237ms

Transfer 14 KB

Monthly Cost €1/mo

static.klaviyo.com

Other

Costly

Execution 217ms

Transfer 8 KB

Monthly Cost €1/mo

Microsoft Clarity

Session Replay

Costly

Execution 208ms

Transfer 25 KB

Monthly Cost €1/mo

cdn.rebuyengine.com

Other

Optional

Execution 167ms

Transfer 32 KB

Unused 71%

Monthly Cost €1/mo

files1.cybba.solutions

Other

Optional

Execution 140ms

Transfer 26 KB

Monthly Cost €1/mo

cdn.shopify.com

Other

Optional

Execution 139ms

Transfer 42 KB

Unused 53%

Monthly Cost €1/mo

cdnjs

CDN

Optional

Execution 128ms

Transfer 29 KB

Monthly Cost €1/mo

cdn.shopify.com

Other

Optional

Execution 127ms

Transfer 50 KB

Unused 46%

Monthly Cost €1/mo

cdn.shopify.com

Other

Optional

Execution 126ms

Transfer 23 KB

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 114ms

Transfer 167 KB

Unused 70%

Monthly Cost €1/mo

static.klaviyo.com

Other

Optional

Execution 112ms

Transfer 15 KB

Monthly Cost €1/mo

protection-widget.route.com

Other

Optional

Execution 105ms

Transfer 57 KB

Unused 42%

Monthly Cost €1/mo

cdn.shopify.com

Other

Optional

Execution 101ms

Transfer 1 KB

Monthly Cost €1/mo

cdn-widgetsrepository.yotpo.com

Other

Optional

Execution 100ms

Transfer 23 KB

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 94ms

Transfer 156 KB

Unused 75%

Monthly Cost €0/mo

cdn.shopify.com

Other

Optional

Execution 91ms

Transfer 0 KB

Monthly Cost €0/mo

cdn.shopify.com

Other

Optional

Execution 84ms

Transfer 83 KB

Unused 76%

Monthly Cost €0/mo

sdk.beamimpact.com

Other

Optional

Execution 78ms

Transfer 7 KB

Monthly Cost €0/mo

static.klaviyo.com

Other

Optional

Execution 77ms

Transfer 3 KB

Monthly Cost €0/mo

d2mjzob2nc713b.cloudfront.net

Other

Optional

Execution 77ms

Transfer 24 KB

Monthly Cost €0/mo

sdk.beamimpact.com

Other

Optional

Execution 69ms

Transfer 2 KB

Monthly Cost €0/mo

cdn-widgetsrepository.yotpo.com

Other

Optional

Execution 67ms

Transfer 16 KB

Monthly Cost €0/mo

js.adsrvr.org

Other

Optional

Execution 61ms

Transfer 15 KB

Monthly Cost €0/mo

d2mjzob2nc713b.cloudfront.net

Other

Optional

Execution 54ms

Transfer 6 KB

Monthly Cost €0/mo

cdn.shopify.com

Other

Optional

Execution 51ms

Transfer 5 KB

Monthly Cost €0/mo

cdn.rebuyengine.com

Other

Optional

Execution 50ms

Transfer 13 KB

Monthly Cost €0/mo

These scripts may cost more than they're worth

cdn.routeapp.io adds 1102ms and costs ~€6/month
cdn.shopify.com adds 696ms and costs ~€4/month
Google Tag Manager adds 487ms and costs ~€3/month
cdn.rebuyengine.com adds 436ms and costs ~€2/month
Google Tag Manager adds 422ms and costs ~€2/month
Google Tag Manager adds 410ms and costs ~€2/month
Facebook Pixel adds 352ms and costs ~€2/month
Facebook Pixel adds 309ms and costs ~€2/month
pskzt.cleobella.com adds 275ms and costs ~€1/month
d2rp1k1dldbai6.cloudfront.net adds 262ms and costs ~€1/month
cdn.shopify.com adds 237ms and costs ~€1/month
static.klaviyo.com adds 217ms and costs ~€1/month
Microsoft Clarity adds 208ms and costs ~€1/month

cdn.routeapp.io takes 1102ms 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

64% of cdn.routeapp.io'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

cdn.shopify.com takes 696ms 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 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

Google Tag Manager takes 487ms 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

cdn.rebuyengine.com takes 436ms 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

72% of cdn.rebuyengine.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

Google Tag Manager takes 422ms 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

Google Tag Manager takes 410ms 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

Facebook Pixel takes 352ms 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

Facebook Pixel takes 309ms 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

pskzt.cleobella.com takes 275ms 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

59% of pskzt.cleobella.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

d2rp1k1dldbai6.cloudfront.net takes 262ms 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

cdn.shopify.com takes 237ms 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

static.klaviyo.com takes 217ms 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

Microsoft Clarity takes 208ms 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

71% of cdn.rebuyengine.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

53% 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

70% of Google Tag Manager'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

75% of Google Tag Manager'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

76% 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

Real-User Performance (CrUX)

Field metrics from the Chrome User Experience Report

INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-09-24 — 2026-10-21)

LCP (p75)

2680 ms

72% good

INP (p75)

100 ms

95% good

CLS (p75)

0.030

96% good

FCP (p75)

2189 ms

TTFB (p75)

658 ms

Image Optimization

106 images, 2095 KB total, 335 KB wasted

INFO

Image Optimization Audit

Total Images

106

Total Size

2095 KB

Oversized

Wasted

335 KB

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.