Performance

F

Page Weight Budget

Action

5.4 MB transferred, 302 requests

FIX

5.4 MB transferred, 302 requests

Page weighs 12.2 MB (5.4 MB transferred)

JavaScript is 2.5 MB — consider code splitting or lazy loading

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

Got: 2.5 MB

Images are 1.5 MB — compress or use modern formats

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

Got: 1.5 MB

Fonts are 340 KB — consider subsetting or using system fonts

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

Got: 340 KB

302 HTTP requests — consider bundling or reducing

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

Estimated 1.1 g CO2 per page load

5.4 MB transferred

302 requests

1.1 g CO2 per page load

JavaScript 2.5 MiB 47%

Images 1.5 MiB 28%

Other 739.9 KiB 13%

Fonts 339.5 KiB 6%

HTML 111.5 KiB 2%

CSS 78.5 KiB 1%

Other 76.9 KiB 1%

Other 20.2 KiB 0%

Other 7.3 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

F

JS Execution Cost

Action

13144ms total JS execution

FIX

13144ms total JS execution

https://provinceofcanada.com/: 3193ms CPU time

Unattributable: 1886ms CPU time

https://scripts.clarity.ms/0.8.72-beta/clarity.js: 1472ms CPU time

https://provinceofcanada.com/cdn/wpm/b49d3b31aw169...: 757ms CPU time

https://www.googletagmanager.com/gtag/js?id=AW-784...: 672ms CPU time

Third-party scripts: 6272ms (48% of total)

Main Thread Breakdown

Script Evaluation 56% Other 16% Style & Layout 15% Script Parsing & Compilation 7%

Script	Total	Scripting	Parse/Compile	Party
https://provinceofcanada.com/	3193ms	226ms	85ms	1st
Unattributable	1886ms	266ms	0ms	1st
https://scripts.clarity.ms/0.8.72-beta/clarity.js	1472ms	1428ms	7ms	3rd
https://provinceofcanada.com/cdn/wpm/b49d3b31aw169a7c20pfc9cb2c9m68241e55m.js	757ms	413ms	31ms	1st
https://www.googletagmanager.com/gtag/js?id=AW-784931867	672ms	451ms	171ms	3rd
https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js	547ms	291ms	11ms	3rd
https://www.googletagmanager.com/gtag/js?id=G-WFLQZ1TE50	522ms	323ms	196ms	3rd
https://provinceofcanada.com/cdn/shop/t/67/assets/main.js?v=71597228913418551581725468373	431ms	180ms	18ms	1st
https://amaicdn.com/preorder2/common.js	407ms	299ms	104ms	3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5RH95GG4	349ms	306ms	41ms	3rd

Showing top 10 of 30 scripts

F

JS Bundles

Action

205 scripts, 905 KB unused

FIX

205 scripts, 905 KB unused

https://amaicdn.com/preorder2/common.js: 151 KB unused (51%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=G-WFLQ...: 125 KB unused (67%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=AW-784...: 116 KB unused (70%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=G-WFLQ...: 75 KB unused (40%)

Consider code splitting or tree shaking to reduce unused code.

https://static.klaviyo.com/onsite/js/customerHubRo...: 68 KB unused (88%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 905 KB

905 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://amaicdn.com/preorder2/common.js	294 KB	151 KB (51%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=G-WFLQZ1TE50&cx=c&gtm=4e6al1h2	187 KB	125 KB (67%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=AW-784931867&cx=c&gtm=4e6al1h2	167 KB	116 KB (70%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=G-WFLQZ1TE50	187 KB	75 KB (40%)	✓	3rd
https://static.klaviyo.com/onsite/js/customerHubRoot.ebe3d0f7e9fd4.js?cb=2	78 KB	68 KB (88%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=AW-784931867	167 KB	64 KB (38%)	✓	3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5RH95GG4	120 KB	63 KB (53%)	✓	3rd
https://amaicdn.com/all-apps/spurit.global-2.x.min.js	105 KB	56 KB (54%)	✓	3rd
https://static.klaviyo.com/onsite/js/Render.39c98c70373f7.js?cb=2	66 KB	55 KB (83%)	✓	3rd
https://provinceofcanada.com/cdn/wpm/b49d3b31aw169a7c20pfc9cb2c9m68241e55m.js	83 KB	44 KB (54%)	✓	1st

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

F

Page Weight Inventory

Action

302 resources · 5.4 MB · 905 KB savings available

FIX

302 resources · 5.4 MB · 905 KB savings available

Page weight 5.4 MB exceeds 1 MB target by 4.4 MB

Got: 5.4 MB Expected: ≤ 1 MB

~905 KB of savings available

146 third-party resources (46% of weight)

5 resources over 200KB

302 resources · 5.4 MiB · 146 third-party 4.4 MiB over 1MB target

JavaScript 61% · 3.3 MiB

Image 28% · 1.5 MiB

Font 6% · 339.5 KiB

Document 2% · 117.2 KiB

Other 2% · 95.5 KiB

CSS 1% · 78.5 KiB

~904.9 KiB of savings available

Remove unused JavaScript: 904.9 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

302 resources			5.4 MiB

F

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.

B

Third-Party Impact

46% third-party, 0 ms blocking

REVIEW

46% third-party, 0 ms blocking

Third-party code accounts for 46% of page weight (2.5 MiB of 5.4 MiB)

Third-party blocking time is low (0 ms)

54%

46%

First-party Third-party

B

Asset Compression

3 of 6 asset hosts still on gzip

REVIEW

3 of 6 asset hosts still on gzip

static.klaviyo.com serves assets with brotli (assets: 15)

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

cdn.shopify.com serves assets with brotli (assets: 10)

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

amaicdn.com serves assets with gzip; brotli would be ~20% smaller (assets: 7)

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: amaicdn.com (application/x-javascript)

www.googletagmanager.com serves assets with gzip; brotli would be ~20% smaller (assets: 7)

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: www.googletagmanager.com (application/javascript)

static-tracking.klaviyo.com serves assets with brotli (assets: 4)

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

cdn1.stamped.io 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: cdn1.stamped.io (text/css)

B

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.

B

JavaScript Blocking

2 JS blocking issue(s) detected

REVIEW

2 JS blocking issue(s) detected

6 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 13.1 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.

B

CSS Performance Depth

2 CSS depth issue(s) detected

REVIEW

2 CSS depth issue(s) detected

9 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.

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A

Image Optimization

21 images, 0 KB saveable

PASS

21 images, 0 KB saveable

All images are well-optimized

21 images 1.5 MB

0 oversized -0 KB

2 legacy format

0 missing dimensions CLS risk

A+

Font Loading

10 fonts (340 KB)

PASS

10 fonts (340 KB)

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

Web fonts

10

340 KB total

Render-blocking

0

of 10

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

inter_n4.b2a3f24c19b4de... woff2 swap

Size 39 KB

Load time 49 ms

Start 624 ms

Risk FOUT — text flashes from fallback to web font

PerfectlyNineties-Regul... woff2 swap

Size 39 KB

Load time 58 ms

Start 624 ms

Risk FOUT — text flashes from fallback to web font

PerfectlyNineties-Regul... woff swap

Size 54 KB

Load time 53 ms

Start 625 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

PerfectlyNineties-Regul... woff2 swap

Size 35 KB

Load time 62 ms

Start 625 ms

Risk FOUT — text flashes from fallback to web font

PerfectlyNineties-Regul... woff swap

Size 45 KB

Load time 66 ms

Start 625 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

PerfectlyNineties-Regul... woff2 swap

Size 21 KB

Load time 39 ms

Start 717 ms

Risk FOUT — text flashes from fallback to web font

inter_n5.d7101d5e168594... woff2 swap

Size 39 KB

Load time 46 ms

Start 804 ms

Risk FOUT — text flashes from fallback to web font

PerfectlyNineties-Regul... woff2 swap

Size 19 KB

Load time 24 ms

Start 1.1 s

Risk FOUT — text flashes from fallback to web font

inter_n7.02711e6b374660... woff2 swap

Size 39 KB

Load time 30 ms

Start 1.1 s

Risk FOUT — text flashes from fallback to web font

stamped-font.ttf ttf swap

Size 10 KB

Load time 8 ms

Start 4.3 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 ~33 KB and ~66 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

208 hints, 0 missing preconnects

PASS

208 hints, 0 missing preconnects

Page uses 208 resource hint(s)

Current Resource Hints

preconnect

3

preload

+1

11

dns-prefetch

1

prefetch

+183

193

208 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+

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

A

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

302 requests over 6856ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

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

INFO

48% of JavaScript execution is third-party

First-party Third-party 6272ms · 1618KB · €33/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
Microsoft Clarity scripts.clarity.ms	Session Replay	1472ms	25 KB	—	€8/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	672ms	167 KB	38%	€4/mo	Costly
ajax.googleapis.com ajax.googleapis.com	Other	547ms	33 KB	—	€3/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	522ms	187 KB	40%	€3/mo	Costly
amaicdn.com amaicdn.com	Other	407ms	294 KB	51%	€2/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	349ms	120 KB	53%	€2/mo	Costly
static.klaviyo.com static.klaviyo.com	Other	302ms	78 KB	88%	€2/mo	Costly
static.klaviyo.com static.klaviyo.com	Other	297ms	66 KB	83%	€2/mo	Costly
static.klaviyo.com static.klaviyo.com	Other	264ms	24 KB	—	€1/mo	Costly
static.klaviyo.com static.klaviyo.com	Other	224ms	21 KB	—	€1/mo	Costly
amaicdn.com amaicdn.com	Other	214ms	105 KB	54%	€1/mo	Costly
static.klaviyo.com static.klaviyo.com	Other	126ms	8 KB	—	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	118ms	187 KB	67%	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	112ms	167 KB	70%	€1/mo	Optional
static.klaviyo.com static.klaviyo.com	Other	109ms	11 KB	—	€1/mo	Optional
static.klaviyo.com static.klaviyo.com	Other	96ms	7 KB	—	€1/mo	Optional
call.chatra.io call.chatra.io	Other	88ms	12 KB	—	€0/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	83ms	46 KB	74%	€0/mo	Optional
ajax.googleapis.com ajax.googleapis.com	Other	75ms	32 KB	69%	€0/mo	Optional
cdn.shopify.com cdn.shopify.com	Other	67ms	14 KB	—	€0/mo	Optional
limits.minmaxify.com limits.minmaxify.com	Other	64ms	10 KB	—	€0/mo	Optional
static.klaviyo.com static.klaviyo.com	Other	64ms	3 KB	—	€0/mo	Optional

Microsoft Clarity

Session Replay

Costly

Execution 1472ms

Transfer 25 KB

Monthly Cost €8/mo

Google Tag Manager

Tag Manager

Costly

Execution 672ms

Transfer 167 KB

Unused 38%

Monthly Cost €4/mo

ajax.googleapis.com

Other

Costly

Execution 547ms

Transfer 33 KB

Monthly Cost €3/mo

Google Tag Manager

Tag Manager

Costly

Execution 522ms

Transfer 187 KB

Unused 40%

Monthly Cost €3/mo

amaicdn.com

Other

Costly

Execution 407ms

Transfer 294 KB

Unused 51%

Monthly Cost €2/mo

Google Tag Manager

Tag Manager

Costly

Execution 349ms

Transfer 120 KB

Unused 53%

Monthly Cost €2/mo

static.klaviyo.com

Other

Costly

Execution 302ms

Transfer 78 KB

Unused 88%

Monthly Cost €2/mo

static.klaviyo.com

Other

Costly

Execution 297ms

Transfer 66 KB

Unused 83%

Monthly Cost €2/mo

static.klaviyo.com

Other

Costly

Execution 264ms

Transfer 24 KB

Monthly Cost €1/mo

static.klaviyo.com

Other

Costly

Execution 224ms

Transfer 21 KB

Monthly Cost €1/mo

amaicdn.com

Other

Costly

Execution 214ms

Transfer 105 KB

Unused 54%

Monthly Cost €1/mo

static.klaviyo.com

Other

Optional

Execution 126ms

Transfer 8 KB

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 118ms

Transfer 187 KB

Unused 67%

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 112ms

Transfer 167 KB

Unused 70%

Monthly Cost €1/mo

static.klaviyo.com

Other

Optional

Execution 109ms

Transfer 11 KB

Monthly Cost €1/mo

static.klaviyo.com

Other

Optional

Execution 96ms

Transfer 7 KB

Monthly Cost €1/mo

call.chatra.io

Other

Optional

Execution 88ms

Transfer 12 KB

Monthly Cost €0/mo

cdn.shopify.com

Other

Optional

Execution 83ms

Transfer 46 KB

Unused 74%

Monthly Cost €0/mo

ajax.googleapis.com

Other

Optional

Execution 75ms

Transfer 32 KB

Unused 69%

Monthly Cost €0/mo

cdn.shopify.com

Other

Optional

Execution 67ms

Transfer 14 KB

Monthly Cost €0/mo

limits.minmaxify.com

Other

Optional

Execution 64ms

Transfer 10 KB

Monthly Cost €0/mo

static.klaviyo.com

Other

Optional

Execution 64ms

Transfer 3 KB

Monthly Cost €0/mo

These scripts may cost more than they're worth

Microsoft Clarity adds 1472ms and costs ~€8/month
Google Tag Manager adds 672ms and costs ~€4/month
ajax.googleapis.com adds 547ms and costs ~€3/month
Google Tag Manager adds 522ms and costs ~€3/month
amaicdn.com adds 407ms and costs ~€2/month
Google Tag Manager adds 349ms and costs ~€2/month
static.klaviyo.com adds 302ms and costs ~€2/month
static.klaviyo.com adds 297ms and costs ~€2/month
static.klaviyo.com adds 264ms and costs ~€1/month
static.klaviyo.com adds 224ms and costs ~€1/month
amaicdn.com adds 214ms and costs ~€1/month

48% 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

Microsoft Clarity takes 1472ms 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 672ms 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

ajax.googleapis.com takes 547ms 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 522ms 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

amaicdn.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

51% of amaicdn.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 349ms 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

53% 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

static.klaviyo.com takes 302ms 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

88% of static.klaviyo.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.klaviyo.com takes 297ms 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

83% of static.klaviyo.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.klaviyo.com takes 264ms 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 224ms 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

amaicdn.com takes 214ms 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

54% of amaicdn.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 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

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

74% 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 ajax.googleapis.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 (2026-09-23 — 2026-10-20)

LCP (p75)

1460 ms

94% good

INP (p75)

113 ms

95% good

CLS (p75)

0.000

96% good

FCP (p75)

1214 ms

TTFB (p75)

387 ms

This origin passes Core Web Vitals assessment

Image Optimization

200 images, 767 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

200

Total Size

767 KB

Page Load Progression

Font loading timeline

Optimization checklist

Green Hosting

These scripts may cost more than they're worth

Chrome User Experience (CrUX)

Image Optimization Audit