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

SEO

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

9.20 s

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

40.15 s

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

4.11 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.

14.83 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.

41.28 s

Page Load Progression

1.1 s

2.3 s

3.4 s

4.5 s

5.6 s

6.8 s

7.9 s

9.0 s

Checks

12 PASS 6 REVIEW 6 FIX

Page Weight Budget

Action

6.3 MB transferred, 289 requests

FIX

6.3 MB transferred, 289 requests

Page weighs 23.6 MB (6.3 MB transferred)

JavaScript is 3.3 MB — consider code splitting or lazy loading

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

Got: 3.3 MB

Images are 1.7 MB — compress or use modern formats

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

Got: 1.7 MB

Fonts are 257 KB — consider subsetting or using system fonts

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

Got: 257 KB

289 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

289 requests

1.3 g CO2 per page load

JavaScript 3.3 MiB 52%

Images 1.7 MiB 27%

Other 363.2 KiB 6%

Other 341.3 KiB 5%

Fonts 257.3 KiB 4%

HTML 199.5 KiB 3%

Other 168.1 KiB 3%

CSS 37.2 KiB 1%

Other 5.2 KiB 0%

Other 4.5 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

Third-Party Impact

Action

91% third-party, 0 ms blocking

FIX

91% third-party, 0 ms blocking

Third-party code accounts for 91% of page weight (5.7 MiB of 6.3 MiB)

Third-party blocking time is low (0 ms)

91%

First-party Third-party

JS Execution Cost

Action

19622ms total JS execution

FIX

19622ms total JS execution

https://cdn.shopify.com/oxygen-v2/28113/13999/2884...: 4101ms CPU time

https://cdn.shopify.com/oxygen-v2/28113/13999/2884...: 4010ms CPU time

https://www.cutsclothing.com/en-es/: 2503ms CPU time

Unattributable: 2230ms CPU time

https://backend.alia-prod.com/public/app.js?tag=v4...: 906ms CPU time

Third-party scripts: 14889ms (76% of total)

Main Thread Breakdown

Script Evaluation 50% Other 23% Style & Layout 15% Rendering 6% Script Parsing & Compilation 5%

Script	Total	Scripting	Parse/Compile	Party
https://cdn.shopify.com/oxygen-v2/28113/13999/28848/4906305/assets/index-C91D4Qmc.js	4101ms	3430ms	5ms	3rd
https://cdn.shopify.com/oxygen-v2/28113/13999/28848/4906305/assets/root-X4KLBwPb.js	4010ms	777ms	3ms	3rd
https://www.cutsclothing.com/en-es/	2503ms	143ms	109ms	1st
Unattributable	2230ms	356ms	0ms	1st
https://backend.alia-prod.com/public/app.js?tag=v4.0.29	906ms	826ms	54ms	3rd
https://www.googletagmanager.com/gtag/js?id=AW-856309779	746ms	647ms	49ms	3rd
https://acsbapp.com/apps/app/dist/js/app.js	481ms	321ms	77ms	3rd
https://static.elfsight.com/apps/instashow/stable/0a484bc561902694bd8eb5ce1cc0fb32ed86c629/app/instashow.js	384ms	203ms	48ms	3rd
https://cdn.shopify.com/oxygen-v2/28113/13999/28848/4906305/assets/chunk-EPOLDU6W-C9oCqmwj.js	383ms	330ms	1ms	3rd
https://connect.facebook.net/en_US/fbevents.js	326ms	225ms	97ms	3rd

Showing top 10 of 36 scripts

JS Bundles

Action

110 scripts, 1.3 MB unused

FIX

110 scripts, 1.3 MB unused

https://acsbapp.com/apps/app/dist/js/app.js: 121 KB unused (51%)

Consider code splitting or tree shaking to reduce unused code.

https://www.heyplaybook.com/sdk/playbook.js: 117 KB unused (81%)

Consider code splitting or tree shaking to reduce unused code.

https://backend.alia-prod.com/public/app.js?tag=v4...: 100 KB unused (44%)

Consider code splitting or tree shaking to reduce unused code.

https://static.elfsight.com/apps/instashow/stable/...: 99 KB unused (59%)

Consider code splitting or tree shaking to reduce unused code.

https://cdn.shopify.com/oxygen-v2/28113/13999/2884...: 97 KB unused (46%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 1.3 MB

1322 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://acsbapp.com/apps/app/dist/js/app.js	242 KB	121 KB (51%)	✓	3rd
https://www.heyplaybook.com/sdk/playbook.js	144 KB	117 KB (81%)	✓	3rd
https://backend.alia-prod.com/public/app.js?tag=v4.0.29	231 KB	100 KB (44%)	✓	3rd
https://static.elfsight.com/apps/instashow/stable/0a484bc561902694bd8eb5ce1cc0fb32ed86c629/app/instashow.js	169 KB	99 KB (59%)	✓	3rd
https://cdn.shopify.com/oxygen-v2/28113/13999/28848/4906305/assets/root-X4KLBwPb.js	213 KB	97 KB (46%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=G-7BJQYCXYCR	187 KB	73 KB (39%)	✓	3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MH6NHVPD	165 KB	71 KB (43%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=AW-856309779	166 KB	68 KB (41%)	✓	3rd
https://cdn.kustomerapp.com/chat-web/release-v0.1.467/widget-main.1268faf6e77dca4acd93.js	95 KB	59 KB (63%)	✓	3rd
https://public.getfondue.com/cashback-extension/cart/fundle.js	84 KB	55 KB (66%)	✓	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

289 resources · 6.3 MB · 1.3 MB savings available

FIX

289 resources · 6.3 MB · 1.3 MB savings available

Page weight 6.3 MB exceeds 1 MB target by 5.3 MB

Got: 6.3 MB Expected: ≤ 1 MB

~1.3 MB of savings available

245 third-party resources (91% of weight)

8 resources over 200KB

289 resources · 6.3 MiB · 245 third-party 5.3 MiB over 1MB target

JavaScript 52% · 3.3 MiB

Image 27% · 1.7 MiB

Document 6% · 368.2 KiB

Other 5% · 351.9 KiB

Media 5% · 341.3 KiB

Font 4% · 257.3 KiB

CSS 1% · 37.2 KiB

~1.3 MiB of savings available

Remove unused JavaScript: 1.3 MiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

289 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.

Image Optimization

30 images, 0 KB saveable

REVIEW

30 images, 0 KB saveable

All images are well-optimized

30 images 1.7 MB

0 oversized -0 KB

12 legacy format

0 missing dimensions CLS risk

Document Compression

Action

Document response served uncompressed

REVIEW

Document response served uncompressed

Main HTML response has no Content-Encoding (uncompressed)

The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.

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.

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.

JavaScript Blocking

2 JS blocking issue(s) detected

REVIEW

2 JS blocking issue(s) detected

2 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 19.6 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.

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

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 (257 KB)

PASS

11 fonts (257 KB)

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

Web fonts

257 KB total

Render-blocking

of 11

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

font-woff;charset=utf-8... woff swap

Size 2 KB

Load time 109 ms

Start 906 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

UntitledSans-Regular-uy... woff2 swap

Size 23 KB

Load time 31 ms

Start 1.0 s

Risk FOUT — text flashes from fallback to web font

UntitledSans-Bold-BTsVx... woff2 swap

Size 23 KB

Load time 28 ms

Start 1.0 s

Risk FOUT — text flashes from fallback to web font

UntitledSans-Medium-CP2... woff2 swap

Size 23 KB

Load time 29 ms

Start 1.0 s

Risk FOUT — text flashes from fallback to web font

TiemposHeadline-Light-C... woff2 swap

Size 25 KB

Load time 30 ms

Start 1.0 s

Risk FOUT — text flashes from fallback to web font

TiemposHeadline-Regular... woff2 swap

Size 27 KB

Load time 26 ms

Start 1.0 s

Risk FOUT — text flashes from fallback to web font

UntitledSans-Regular.ttf ttf swap

Size 27 KB

Load time 27 ms

Start 3.4 s

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

TiemposHeadline-Light.ttf ttf swap

Size 44 KB

Load time 45 ms

Start 3.4 s

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

KFOMCnqEu92Fr1ME7kSn66a... woff2 swap

Size 16 KB

Load time 19 ms

Start 4.0 s

Risk FOUT — text flashes from fallback to web font

UntitledSansMediumCP2j4... unknown swap

Size 23 KB

Load time 183 ms

Start 5.8 s

Risk FOUT — text flashes from fallback to web font

TiemposHeadlineLightCdP... unknown swap

Size 25 KB

Load time 180 ms

Start 5.8 s

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)

Fixing the unchecked items could save ~36 KB and ~72 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

6 hints, 0 missing preconnects

PASS

6 hints, 0 missing preconnects

Page uses 6 resource hint(s)

Current Resource Hints

preconnect

preload

dns-prefetch

—

prefetch

—

6 resource hints configured

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+

Asset Compression

All 1 asset host use brotli

PASS

All 1 asset host use brotli

cdn.shopify.com serves assets with brotli (assets: 17)

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

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 Response Intelligence

1 server-response signal(s) detected

PASS

1 server-response signal(s) detected

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

CSS Performance Depth

1 CSS depth issue(s) detected

PASS

1 CSS depth issue(s) detected

4 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.

Network Waterfall

289 requests over 7011ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

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

INFO

76% of JavaScript execution is third-party

First-party Third-party 14889ms · 2764KB · €79/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
cdn.shopify.com cdn.shopify.com	Other	4101ms	40 KB	—	€22/mo	Costly
cdn.shopify.com cdn.shopify.com	Other	4010ms	213 KB	46%	€21/mo	Costly
backend.alia-prod.com backend.alia-prod.com	Other	906ms	231 KB	44%	€5/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	746ms	166 KB	41%	€4/mo	Costly
acsbapp.com acsbapp.com	Other	481ms	242 KB	51%	€3/mo	Costly
static.elfsight.com static.elfsight.com	Other	384ms	169 KB	59%	€2/mo	Costly
cdn.shopify.com cdn.shopify.com	Other	383ms	40 KB	—	€2/mo	Costly
Facebook Pixel connect.facebook.net	Advertising	326ms	112 KB	44%	€2/mo	Costly
cdn.sdk.veeperapp.com cdn.sdk.veeperapp.com	Other	314ms	142 KB	27%	€2/mo	Costly
analytics.tiktok.com analytics.tiktok.com	Other	245ms	116 KB	48%	€1/mo	Costly
www.heyplaybook.com www.heyplaybook.com	Other	240ms	144 KB	81%	€1/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	239ms	165 KB	43%	€1/mo	Costly
Facebook Pixel connect.facebook.net	Advertising	235ms	110 KB	41%	€1/mo	Costly
cdn.aggle.net cdn.aggle.net	Other	200ms	23 KB	—	€1/mo	Optional
res4.applovin.com res4.applovin.com	Other	182ms	31 KB	—	€1/mo	Optional
cdn-static.okendo.io cdn-static.okendo.io	Other	173ms	18 KB	—	€1/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	161ms	85 KB	64%	€1/mo	Optional
j.northbeam.io j.northbeam.io	Other	160ms	37 KB	69%	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	121ms	187 KB	39%	€1/mo	Optional
backend.alia-prod.com backend.alia-prod.com	Other	118ms	14 KB	—	€1/mo	Optional
cdn.kustomerapp.com cdn.kustomerapp.com	Other	116ms	36 KB	75%	€1/mo	Optional
cdn-static.okendo.io cdn-static.okendo.io	Other	106ms	10 KB	—	€1/mo	Optional
static.klaviyo.com static.klaviyo.com	Other	103ms	10 KB	—	€1/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	102ms	7 KB	—	€1/mo	Optional
public.getfondue.com public.getfondue.com	Other	101ms	84 KB	66%	€1/mo	Optional
cdn.kustomerapp.com cdn.kustomerapp.com	Other	93ms	95 KB	63%	€0/mo	Optional
static.klaviyo.com static.klaviyo.com	Other	89ms	9 KB	—	€0/mo	Optional
j.northbeam.io j.northbeam.io	Other	78ms	33 KB	—	€0/mo	Optional
utt.impactcdn.com utt.impactcdn.com	Other	78ms	26 KB	—	€0/mo	Optional
cdn.kustomerapp.com cdn.kustomerapp.com	Other	71ms	7 KB	—	€0/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	70ms	26 KB	—	€0/mo	Optional
cdn-client.fueled.io cdn-client.fueled.io	Other	53ms	78 KB	62%	€0/mo	Optional
cdn.kustomerapp.com cdn.kustomerapp.com	Other	53ms	55 KB	94%	€0/mo	Optional
cdn-static.okendo.io cdn-static.okendo.io	Other	51ms	6 KB	—	€0/mo	Optional

cdn.shopify.com

Other

Costly

Execution 4101ms

Transfer 40 KB

Monthly Cost €22/mo

cdn.shopify.com

Other

Costly

Execution 4010ms

Transfer 213 KB

Unused 46%

Monthly Cost €21/mo

backend.alia-prod.com

Other

Costly

Execution 906ms

Transfer 231 KB

Unused 44%

Monthly Cost €5/mo

Google Tag Manager

Tag Manager

Costly

Execution 746ms

Transfer 166 KB

Unused 41%

Monthly Cost €4/mo

acsbapp.com

Other

Costly

Execution 481ms

Transfer 242 KB

Unused 51%

Monthly Cost €3/mo

static.elfsight.com

Other

Costly

Execution 384ms

Transfer 169 KB

Unused 59%

Monthly Cost €2/mo

cdn.shopify.com

Other

Costly

Execution 383ms

Transfer 40 KB

Monthly Cost €2/mo

Facebook Pixel

Advertising

Costly

Execution 326ms

Transfer 112 KB

Unused 44%

Monthly Cost €2/mo

cdn.sdk.veeperapp.com

Other

Costly

Execution 314ms

Transfer 142 KB

Unused 27%

Monthly Cost €2/mo

analytics.tiktok.com

Other

Costly

Execution 245ms

Transfer 116 KB

Unused 48%

Monthly Cost €1/mo

www.heyplaybook.com

Other

Costly

Execution 240ms

Transfer 144 KB

Unused 81%

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Costly

Execution 239ms

Transfer 165 KB

Unused 43%

Monthly Cost €1/mo

Facebook Pixel

Advertising

Costly

Execution 235ms

Transfer 110 KB

Unused 41%

Monthly Cost €1/mo

cdn.aggle.net

Other

Optional

Execution 200ms

Transfer 23 KB

Monthly Cost €1/mo

res4.applovin.com

Other

Optional

Execution 182ms

Transfer 31 KB

Monthly Cost €1/mo

cdn-static.okendo.io

Other

Optional

Execution 173ms

Transfer 18 KB

Monthly Cost €1/mo

cdn.shopify.com

Other

Optional

Execution 161ms

Transfer 85 KB

Unused 64%

Monthly Cost €1/mo

j.northbeam.io

Other

Optional

Execution 160ms

Transfer 37 KB

Unused 69%

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 121ms

Transfer 187 KB

Unused 39%

Monthly Cost €1/mo

backend.alia-prod.com

Other

Optional

Execution 118ms

Transfer 14 KB

Monthly Cost €1/mo

cdn.kustomerapp.com

Other

Optional

Execution 116ms

Transfer 36 KB

Unused 75%

Monthly Cost €1/mo

cdn-static.okendo.io

Other

Optional

Execution 106ms

Transfer 10 KB

Monthly Cost €1/mo

static.klaviyo.com

Other

Optional

Execution 103ms

Transfer 10 KB

Monthly Cost €1/mo

cdn.shopify.com

Other

Optional

Execution 102ms

Transfer 7 KB

Monthly Cost €1/mo

public.getfondue.com

Other

Optional

Execution 101ms

Transfer 84 KB

Unused 66%

Monthly Cost €1/mo

cdn.kustomerapp.com

Other

Optional

Execution 93ms

Transfer 95 KB

Unused 63%

Monthly Cost €0/mo

static.klaviyo.com

Other

Optional

Execution 89ms

Transfer 9 KB

Monthly Cost €0/mo

j.northbeam.io

Other

Optional

Execution 78ms

Transfer 33 KB

Monthly Cost €0/mo

utt.impactcdn.com

Other

Optional

Execution 78ms

Transfer 26 KB

Monthly Cost €0/mo

cdn.kustomerapp.com

Other

Optional

Execution 71ms

Transfer 7 KB

Monthly Cost €0/mo

cdn.shopify.com

Other

Optional

Execution 70ms

Transfer 26 KB

Monthly Cost €0/mo

cdn-client.fueled.io

Other

Optional

Execution 53ms

Transfer 78 KB

Unused 62%

Monthly Cost €0/mo

cdn.kustomerapp.com

Other

Optional

Execution 53ms

Transfer 55 KB

Unused 94%

Monthly Cost €0/mo

cdn-static.okendo.io

Other

Optional

Execution 51ms

Transfer 6 KB

Monthly Cost €0/mo

These scripts may cost more than they're worth

cdn.shopify.com adds 4101ms and costs ~€22/month
cdn.shopify.com adds 4010ms and costs ~€21/month
backend.alia-prod.com adds 906ms and costs ~€5/month
Google Tag Manager adds 746ms and costs ~€4/month
acsbapp.com adds 481ms and costs ~€3/month
static.elfsight.com adds 384ms and costs ~€2/month
cdn.shopify.com adds 383ms and costs ~€2/month
Facebook Pixel adds 326ms and costs ~€2/month
cdn.sdk.veeperapp.com adds 314ms and costs ~€2/month
analytics.tiktok.com adds 245ms and costs ~€1/month
www.heyplaybook.com adds 240ms and costs ~€1/month
Google Tag Manager adds 239ms and costs ~€1/month
Facebook Pixel adds 235ms and costs ~€1/month

76% 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 4101ms 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 4010ms 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

backend.alia-prod.com takes 906ms 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 746ms 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

acsbapp.com takes 481ms 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 acsbapp.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

static.elfsight.com takes 384ms 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 static.elfsight.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

cdn.shopify.com takes 383ms 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 326ms 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.sdk.veeperapp.com takes 314ms 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

analytics.tiktok.com takes 245ms 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

www.heyplaybook.com takes 240ms 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

81% of www.heyplaybook.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 239ms 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 235ms 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.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

69% of j.northbeam.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

75% of cdn.kustomerapp.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

66% of public.getfondue.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

63% of cdn.kustomerapp.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

62% of cdn-client.fueled.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

94% of cdn.kustomerapp.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 (2026-10-01 — 2026-10-28)

LCP (p75)

2592 ms

73% good

INP (p75)

162 ms

85% good

CLS (p75)

0.250

64% good

FCP (p75)

1756 ms

TTFB (p75)

1358 ms

Image Optimization

15 images, 0 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

0 KB

11 missing dimensions 3 missing lazy loading

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