Performance

· 27 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.

5.61 s

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

21.70 s

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

2.13 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.

9.92 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.

26.50 s

Page Load Progression

770 ms

1.5 s

2.3 s

3.1 s

3.8 s

4.6 s

5.4 s

6.2 s

Checks

14 PASS 6 REVIEW 4 FIX

Page Weight Budget

Action

4.5 MB transferred, 420 requests

FIX

4.5 MB transferred, 420 requests

Page weighs 10.2 MB (4.5 MB transferred)

JavaScript is 2.4 MB — consider code splitting or lazy loading

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

Got: 2.4 MB

420 HTTP requests — consider bundling or reducing

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

Estimated 0.95 g CO2 per page load

4.5 MB transferred

420 requests

0.95 g CO2 per page load

JavaScript 2.4 MiB 52%

Other 1.1 MiB 25%

Images 823.8 KiB 18%

HTML 128.7 KiB 3%

CSS 44.3 KiB 1%

Fonts 31.1 KiB 1%

Other 30.9 KiB 1%

Other 7.2 KiB 0%

Other 1.7 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

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

12425ms total JS execution

FIX

12425ms total JS execution

Unattributable: 2301ms CPU time

https://houseoflacuna.com/: 2151ms CPU time

https://houseoflacuna.com/cdn/shop/t/23/assets/ven...: 1067ms CPU time

https://cdn.shopify.com/extensions/01a14e70-35b0-7...: 981ms CPU time

https://houseoflacuna.com/cdn/wpm/b9f5e2762wb72053...: 822ms CPU time

Third-party scripts: 5408ms (44% of total)

Main Thread Breakdown

Script Evaluation 47% Other 27% Style & Layout 11% Script Parsing & Compilation 7% Rendering 4%

Script	Total	Scripting	Parse/Compile	Party
Unattributable	2301ms	155ms	0ms	1st
https://houseoflacuna.com/	2151ms	157ms	39ms	1st
https://houseoflacuna.com/cdn/shop/t/23/assets/vendor-scripts-v11.js	1067ms	365ms	15ms	1st
https://cdn.shopify.com/extensions/01a14e70-35b0-7f65-85bc-21704d5a5e2c/unicorn-boost-1236/assets/main.js	981ms	570ms	64ms	3rd
https://houseoflacuna.com/cdn/wpm/b9f5e2762wb720532ap19708c42m93b2bec3m.js	822ms	532ms	22ms	1st
https://www.googletagmanager.com/gtag/js?id=G-ERDLH4TN2P	515ms	442ms	67ms	3rd
https://www.googletagmanager.com/gtag/js?id=AW-319628513	499ms	427ms	71ms	3rd
https://connect.facebook.net/en_US/fbevents.js	437ms	310ms	100ms	3rd
https://connect.facebook.net/signals/config/826752787047058?v=2.9.419&r=stable&domain=houseoflacuna.com&im=1&hme=7459fa3e38c2784dbaf309537bed5fa7e8560fab51fb61e53e5ffafeb46a02a9&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%2C339%2C361%2C248%2C237%2C70%2C238%2C236%2C364%2C355%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	435ms	337ms	44ms	3rd
https://cdn.shopify.com/extensions/01a14416-995f-7951-a981-854ef92a0fd4/judgeme-786/assets/widget_base.js	378ms	260ms	37ms	3rd

Showing top 10 of 30 scripts

JS Bundles

Action

276 scripts, 1.3 MB unused

FIX

276 scripts, 1.3 MB unused

https://cdn.shopify.com/extensions/01a14416-995f-7...: 130 KB unused (93%)

Consider code splitting or tree shaking to reduce unused code.

https://cdn.shopify.com/extensions/01a14416-995f-7...: 130 KB unused (93%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=G-ERDL...: 127 KB unused (66%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=AW-319...: 116 KB unused (71%)

Consider code splitting or tree shaking to reduce unused code.

https://cdn.shopify.com/extensions/01a14e70-35b0-7...: 104 KB unused (63%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 1.3 MB

1378 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://cdn.shopify.com/extensions/01a14416-995f-7951-a981-854ef92a0fd4/judgeme-786/assets/widget_write_review_modal.js	0 KB	130 KB (93%)	✓	3rd
https://cdn.shopify.com/extensions/01a14416-995f-7951-a981-854ef92a0fd4/judgeme-786/assets/widget_write_review_modal.js	26 KB	130 KB (93%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=G-ERDLH4TN2P&cx=c&gtm=4e6ae1	194 KB	127 KB (66%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=AW-319628513&cx=c&gtm=4e6ae1	164 KB	116 KB (71%)	✓	3rd
https://cdn.shopify.com/extensions/01a14e70-35b0-7f65-85bc-21704d5a5e2c/unicorn-boost-1236/assets/main.js	166 KB	104 KB (63%)	✓	3rd
https://js.squarecdn.com/square-marketplace.js	139 KB	81 KB (59%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=G-ERDLH4TN2P	194 KB	76 KB (39%)	✓	3rd
https://cdn.shopify.com/extensions/01a14416-995f-7951-a981-854ef92a0fd4/judgeme-786/assets/widget_others.js	24 KB	71 KB (79%)	✓	3rd
https://cdn.shopify.com/extensions/01a14416-995f-7951-a981-854ef92a0fd4/judgeme-786/assets/widget_others.js	0 KB	71 KB (79%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=GT-NC8BGGD4	153 KB	66 KB (43%)	✓	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

420 resources · 4.5 MB · 1.3 MB savings available

FIX

420 resources · 4.5 MB · 1.3 MB savings available

Page weight 4.5 MB exceeds 1 MB target by 3.5 MB

Got: 4.5 MB Expected: ≤ 1 MB

~1.3 MB of savings available

183 third-party resources (49% of weight)

420 resources · 4.5 MiB · 183 third-party 3.5 MiB over 1MB target

JavaScript 75% · 3.4 MiB

Image 18% · 827.5 KiB

Document 3% · 137.8 KiB

CSS 3% · 118.9 KiB

Other 1% · 36.1 KiB

Font 1% · 31.1 KiB

~1.3 MiB of savings available

Remove unused JavaScript: 1.3 MiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

420 resources			4.5 MiB

Third-Party Impact

49% third-party, 0 ms blocking

REVIEW

49% third-party, 0 ms blocking

Third-party code accounts for 49% of page weight (2.2 MiB of 4.5 MiB)

Third-party blocking time is low (0 ms)

51%

49%

First-party Third-party

Image Optimization

24 images, 0 KB saveable

REVIEW

24 images, 0 KB saveable

is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

24 images 824 KB

0 oversized -0 KB

4 legacy format

1 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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 12.4 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

2 CSS depth issue(s) detected

REVIEW

2 CSS depth issue(s) detected

10 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.

2 `@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.

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

HTTP Caching

private, max-age=0, must-revalidate

REVIEW

private, max-age=0, must-revalidate

Cache-Control header is set

Got: private, max-age=0, must-revalidate

ETag present — enables conditional (304) responses

Cache-Control

private, max-age=0, must-revalidate

Directive	Value	Meaning
private	—	Only browser cache, not CDN/proxy
max-age	0	Cache for 0 seconds
must-revalidate	—	Must recheck with server after expiry

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 (31 KB)

PASS

2 fonts (31 KB)

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

Web fonts

31 KB total

Render-blocking

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

bodonimoda_n5.36d0da1db... woff2 swap

Size 30 KB

Load time 35 ms

Start 742 ms

Risk FOUT — text flashes from fallback to web font

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

Size 1 KB

Load time 45 ms

Start 1.1 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)

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

175 hints, 0 missing preconnects

PASS

175 hints, 0 missing preconnects

Page uses 175 resource hint(s)

Current Resource Hints

preconnect

preload

—

dns-prefetch

prefetch

+153

163

175 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+

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.

A+

Asset Compression

All 4 asset hosts use brotli

PASS

All 4 asset hosts use brotli

cdn.shopify.com serves assets with brotli (assets: 24)

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

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

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

static-tracking.klaviyo.com serves assets with brotli (assets: 3)

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

static.klaviyo.com serves assets with brotli (assets: 3)

Got: static.klaviyo.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+

Main HTML Cache-Control

Main HTML max-age=0 (≤ 5min) is appropriate

PASS

Main HTML max-age=0 (≤ 5min) is appropriate

Got: private, max-age=0, must-revalidate

A+

Server-Timing Observability

18 Server-Timing entries advertised

PASS

18 Server-Timing entries advertised

Server-Timing header advertises 18 timing entries

A+

Server Response Intelligence

2 server-response signal(s) detected

PASS

2 server-response signal(s) detected

`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).

`ETag` present -- conditional GET supported

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

Network Waterfall

420 requests over 36078ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

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

INFO

44% of JavaScript execution is third-party

First-party Third-party 5408ms · 1614KB · €29/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
cdn.shopify.com cdn.shopify.com	Other	981ms	166 KB	63%	€5/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	515ms	194 KB	39%	€3/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	499ms	165 KB	34%	€3/mo	Costly
Facebook Pixel connect.facebook.net	Advertising	437ms	111 KB	34%	€2/mo	Costly
Facebook Pixel connect.facebook.net	Advertising	435ms	161 KB	26%	€2/mo	Costly
cdn.shopify.com cdn.shopify.com	Other	378ms	44 KB	—	€2/mo	Costly
cdn.shopify.com cdn.shopify.com	Other	258ms	0 KB	79%	€1/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	252ms	153 KB	43%	€1/mo	Costly
js.squarecdn.com js.squarecdn.com	Other	243ms	139 KB	59%	€1/mo	Costly
cdn.shopify.com cdn.shopify.com	Other	227ms	0 KB	45%	€1/mo	Costly
cdn.shopify.com cdn.shopify.com	Other	219ms	14 KB	—	€1/mo	Costly
cdn.shopify.com cdn.shopify.com	Other	183ms	0 KB	—	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	117ms	194 KB	66%	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	115ms	164 KB	71%	€1/mo	Optional
static.klaviyo.com static.klaviyo.com	Other	106ms	8 KB	—	€1/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	95ms	42 KB	52%	€0/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	95ms	21 KB	—	€0/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	77ms	0 KB	—	€0/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	70ms	0 KB	—	€0/mo	Optional
static.afterpay.com static.afterpay.com	Other	55ms	8 KB	—	€0/mo	Optional
ajax.googleapis.com ajax.googleapis.com	Other	50ms	31 KB	—	€0/mo	Optional

cdn.shopify.com

Other

Costly

Execution 981ms

Transfer 166 KB

Unused 63%

Monthly Cost €5/mo

Google Tag Manager

Tag Manager

Costly

Execution 515ms

Transfer 194 KB

Unused 39%

Monthly Cost €3/mo

Google Tag Manager

Tag Manager

Costly

Execution 499ms

Transfer 165 KB

Unused 34%

Monthly Cost €3/mo

Facebook Pixel

Advertising

Costly

Execution 437ms

Transfer 111 KB

Unused 34%

Monthly Cost €2/mo

Facebook Pixel

Advertising

Costly

Execution 435ms

Transfer 161 KB

Unused 26%

Monthly Cost €2/mo

cdn.shopify.com

Other

Costly

Execution 378ms

Transfer 44 KB

Monthly Cost €2/mo

cdn.shopify.com

Other

Costly

Execution 258ms

Transfer 0 KB

Unused 79%

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Costly

Execution 252ms

Transfer 153 KB

Unused 43%

Monthly Cost €1/mo

js.squarecdn.com

Other

Costly

Execution 243ms

Transfer 139 KB

Unused 59%

Monthly Cost €1/mo

cdn.shopify.com

Other

Costly

Execution 227ms

Transfer 0 KB

Unused 45%

Monthly Cost €1/mo

cdn.shopify.com

Other

Costly

Execution 219ms

Transfer 14 KB

Monthly Cost €1/mo

cdn.shopify.com

Other

Optional

Execution 183ms

Transfer 0 KB

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 117ms

Transfer 194 KB

Unused 66%

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 115ms

Transfer 164 KB

Unused 71%

Monthly Cost €1/mo

static.klaviyo.com

Other

Optional

Execution 106ms

Transfer 8 KB

Monthly Cost €1/mo

cdn.shopify.com

Other

Optional

Execution 95ms

Transfer 42 KB

Unused 52%

Monthly Cost €0/mo

cdn.shopify.com

Other

Optional

Execution 95ms

Transfer 21 KB

Monthly Cost €0/mo

cdn.shopify.com

Other

Optional

Execution 77ms

Transfer 0 KB

Monthly Cost €0/mo

cdn.shopify.com

Other

Optional

Execution 70ms

Transfer 0 KB

Monthly Cost €0/mo

static.afterpay.com

Other

Optional

Execution 55ms

Transfer 8 KB

Monthly Cost €0/mo

ajax.googleapis.com

Other

Optional

Execution 50ms

Transfer 31 KB

Monthly Cost €0/mo

These scripts may cost more than they're worth

cdn.shopify.com adds 981ms and costs ~€5/month
Google Tag Manager adds 515ms and costs ~€3/month
Google Tag Manager adds 499ms and costs ~€3/month
Facebook Pixel adds 437ms and costs ~€2/month
Facebook Pixel adds 435ms and costs ~€2/month
cdn.shopify.com adds 378ms and costs ~€2/month
cdn.shopify.com adds 258ms and costs ~€1/month
Google Tag Manager adds 252ms and costs ~€1/month
js.squarecdn.com adds 243ms and costs ~€1/month
cdn.shopify.com adds 227ms and costs ~€1/month
cdn.shopify.com adds 219ms and costs ~€1/month

44% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

cdn.shopify.com takes 981ms 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

63% 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 515ms 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 499ms 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 437ms 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 435ms 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 378ms 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 258ms 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

79% 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 252ms 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

js.squarecdn.com takes 243ms 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 js.squarecdn.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 227ms 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 219ms 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

66% 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

71% 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

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

How third-party costs are calculated

Image Optimization

58 images, 523 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

523 KB

58 missing dimensions 56 missing lazy loading

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