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https://taylorstitch.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
5
REVIEW
1
PASS
6
INFO
2

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

Mobile Desktop
65
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

1.07 s

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

2.33 s

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

334 ms

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.

2.73 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.

5.87 s

Page Load Progression

750 ms
1.5 s
2.2 s
3.0 s
3.8 s
4.5 s
5.2 s
6.0 s
Checks
14
6 PASS 1 REVIEW 5 FIX
F
Page Weight Budget
Action
10.9 MB transferred, 294 requests
FIX
10.9 MB transferred, 294 requests
Critical::
Page weighs 16.3 MB (10.9 MB transferred)
Warning::
Images are 2.4 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.4 MB
Warning::
JavaScript is 1.9 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.9 MB
Warning::
294 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 2.3 g CO2 per page load
10.9 MB / 2.4 MB budget
10.9 MB transferred
294 requests
2.3 g CO2 per page load
Other 4.9 MiB 45%
Images 2.4 MiB 22%
JavaScript 1.9 MiB 18%
Other 1.1 MiB 11%
HTML 242.1 KiB 2%
Fonts 187.2 KiB 2%
CSS 98.8 KiB 1%
Other 19.1 KiB 0%
Other 9.8 KiB 0%
Other 7.8 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

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

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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

Why this matters

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

Source: web.dev

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

Why this matters

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

Source: web.dev

D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (10.9 MiB of 10.9 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
2599ms total JS execution
FIX
2599ms total JS execution
Warning::
https://www.taylorstitch.com/: 551ms CPU time
Warning::
Unattributable: 479ms CPU time
Warning::
https://www.taylorstitch.com/cdn/shop/t/12/assets/...: 333ms CPU time
Warning::
https://assets.gorgias.chat/build/static/js/279.6b...: 257ms CPU time
Info::
https://consent.cookiebot.com/uc.js?cbid=d2437d93-...: 191ms CPU time
Warning::
Third-party scripts: 2599ms (100% of total)

Main Thread Breakdown

Script Evaluation 53% Other 21% Style & Layout 10% Script Parsing & Compilation 8% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://www.taylorstitch.com/551ms186ms32ms3rd
Unattributable479ms13ms0ms3rd
https://www.taylorstitch.com/cdn/shop/t/12/assets/taylor-stitch.script.plugins-defer.min.js?v=38227121491110952171772474202333ms68ms12ms3rd
https://assets.gorgias.chat/build/static/js/279.6ba6eb825556cdb4.js257ms240ms7ms3rd
https://consent.cookiebot.com/uc.js?cbid=d2437d93-e98e-49ff-aee4-a51dc787a63e&implementation=gtm&consentmode-dataredaction=dynamic&georegions=%7B%27region%27%3A%27AT%2C%20BE%2C%20BG%2C%20HR%2C%20CY%2C%20CZ%2C%20DK%2C%20EE%2C%20FI%2C%20FR%2C%20DE%2C%20GR%2C%20HU%2C%20IE%2C%20IT%2C%20LV%2C%20LT%2C%20LU%2C%20MT%2C%20NL%2C%20PL%2C%20PT%2C%20RO%2C%20SK%2C%20SI%2C%20ES%2C%20SE%2C%20GB%27%2C%27cbid%27%3A%2780a9d7f2-1fae-4eeb-ab8b-67fad7abb672%27%7D191ms108ms2ms3rd
https://cdn-swell-assets.yotpo.com/app.v1.0.368.js155ms83ms60ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PWKDH5F147ms112ms14ms3rd
https://www.googletagmanager.com/gtag/destination?id=G-E125EVMR4R&cx=c&gtm=4e6461110ms97ms12ms3rd
https://www.taylorstitch.com/cdn/wpm/b0e8c7c7aw41bd75a1p837d7fd4m8b145375m.js102ms89ms4ms3rd
https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMw.js83ms66ms15ms3rd

Showing top 10 of 13 scripts

F
JS Bundles
Action
155 scripts, 617 KB unused
FIX
155 scripts, 617 KB unused
Warning::
https://cdn-swell-assets.yotpo.com/app.v1.0.368.js: 154 KB unused (80%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/destination?...: 67 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-847...: 64 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-PWK...: 57 KB unused (33%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://analytics.tiktok.com/i18n/pixel/static/mai...: 56 KB unused (51%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 617 KB
617 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn-swell-assets.yotpo.com/app.v1.0.368.js192 KB154 KB (80%)✓3rd
https://www.googletagmanager.com/gtag/destination?id=G-E125EVMR4R&cx=c&gtm=4e6461168 KB67 KB (40%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-847512537&cx=c&gtm=4e6461144 KB64 KB (44%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PWKDH5F172 KB57 KB (33%)✓3rd
https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMw.js110 KB56 KB (51%)✓3rd
https://www.taylorstitch.com/cdn/shop/t/12/assets/taylor-stitch.script.plugins-defer.min.js?v=3822712149111095217177247420273 KB47 KB (65%)✓3rd
https://assets.gorgias.chat/build/static/js/279.6ba6eb825556cdb4.js93 KB41 KB (45%)✓3rd
https://cdn.9gtb.com/script.js?rev=9b8201f61 KB32 KB (54%)✓3rd
https://cdn1.stamped.io/files/widget.min.js?shop=taylor-stitch.myshopify.com30 KB26 KB (88%)✓3rd
https://www.taylorstitch.com/cdn/wpm/b0e8c7c7aw41bd75a1p837d7fd4m8b145375m.js61 KB26 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

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

private, no-store

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
no-store—Never cache this response
C
Image Optimization
Action
69 images, 0 KB saveable
REVIEW
69 images, 0 KB saveable
Warning::
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.taylorstitch.com/cdn/shop/files/ts_Q12... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.taylorstitch.com/cdn/shop/files/ts_Q12... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
69 images 2.4 MB
0 oversized -0 KB
11 legacy format
4 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Set explicit width and height to prevent CLS.

Why this matters

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

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

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

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

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

Source: web.dev / Core Web Vitals

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
7 fonts (187 KB)
PASS
7 fonts (187 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

7

187 KB total

Render-blocking

0

of 7

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.1 s LCP 2.3 shttps://www.taylorstitch.com/cdn/shop/t/12/assets/Orbikular-Variable-Roman-VF.woff2?v=42066107622945926961739383041Orbikular-Variable-Roma... https://www.taylorstitch.com/cdn/shop/t/12/assets/Orbikular-Variable-Roman-VF.woff2?v=42066107622945926961739383041 — 0 B — 0 ms — font-display: swaphttps://www.taylorstitch.com/cdn/shop/t/12/assets/national-2-regular.woff2?v=154878934618667380291739383047national-2-regular.woff2 https://www.taylorstitch.com/cdn/shop/t/12/assets/national-2-regular.woff2?v=154878934618667380291739383047 — 0 B — 0 ms — font-display: swaphttps://www.taylorstitch.com/cdn/shop/t/12/assets/national-2-medium.woff2?v=94667792500617235861739383046national-2-medium.woff2 https://www.taylorstitch.com/cdn/shop/t/12/assets/national-2-medium.woff2?v=94667792500617235861739383046 — 37.7 KiB — 0 ms — font-display: swaphttps://www.taylorstitch.com/cdn/shop/t/12/assets/IBMPlexMono-Regular.woff2?v=41954853892110309111739383041IBMPlexMono-Regular.woff2 https://www.taylorstitch.com/cdn/shop/t/12/assets/IBMPlexMono-Regular.woff2?v=41954853892110309111739383041 — 38.9 KiB — 0 ms — font-display: swaphttps://cdn.shopify.com/shop-assets/static_uploads/shoplift/GTStandard-MRegular.woff2GTStandard-MRegular.woff2 https://cdn.shopify.com/shop-assets/static_uploads/shoplift/GTStandard-MRegular.woff2 — 63.3 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2UcC73FwrK3iLTeHuS_nVMrM... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 47.3 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2UcC73FwrK3iLTeHuS_nVMrM... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 0 B — 0 ms — font-display: swap
Orbikular-Variable-Roma... woff2 swap
Size 0 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
national-2-regular.woff2 woff2 swap
Size 0 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
national-2-medium.woff2 woff2 swap
Size 38 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
IBMPlexMono-Regular.woff2 woff2 swap
Size 39 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
GTStandard-MRegular.woff2 woff2 swap
Size 63 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 0 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
294 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 2599ms · 1313KB · €14/mo
www.taylorstitch.com
Other
Costly
Execution 551ms
Transfer 206 KB
Monthly Cost €3/mo
Unattributable
Other
Costly
Execution 479ms
Transfer 0 KB
Monthly Cost €3/mo
www.taylorstitch.com
Other
Costly
Execution 333ms
Transfer 73 KB
Unused 65%
Monthly Cost €2/mo
assets.gorgias.chat
Other
Costly
Execution 257ms
Transfer 93 KB
Unused 45%
Monthly Cost €1/mo
consent.cookiebot.com
Other
Optional
Execution 191ms
Transfer 36 KB
Unused 63%
Monthly Cost €1/mo
cdn-swell-assets.yotpo.com
Other
Optional
Execution 155ms
Transfer 192 KB
Unused 80%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 147ms
Transfer 172 KB
Unused 33%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 110ms
Transfer 168 KB
Unused 40%
Monthly Cost €1/mo
www.taylorstitch.com
Other
Optional
Execution 102ms
Transfer 61 KB
Unused 43%
Monthly Cost €1/mo
analytics.tiktok.com
Other
Optional
Execution 83ms
Transfer 110 KB
Unused 51%
Monthly Cost €0/mo
assets.gorgias.chat
Other
Optional
Execution 78ms
Transfer 38 KB
Monthly Cost €0/mo
www.taylorstitch.com
Other
Optional
Execution 62ms
Transfer 21 KB
Monthly Cost €0/mo
Google Tag Manager
Tag Manager
Optional
Execution 52ms
Transfer 144 KB
Unused 44%
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • www.taylorstitch.com adds 551ms and costs ~€3/month
  • Unattributable adds 479ms and costs ~€3/month
  • www.taylorstitch.com adds 333ms and costs ~€2/month
  • assets.gorgias.chat adds 257ms and costs ~€1/month

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

Why this matters

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

Learn more ▾

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

Source: web.dev

www.taylorstitch.com takes 551ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 479ms 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.taylorstitch.com takes 333ms 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

65% of www.taylorstitch.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

assets.gorgias.chat takes 257ms 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 consent.cookiebot.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

80% of cdn-swell-assets.yotpo.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

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

Why this matters

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

Source: web.dev

How third-party costs are calculated

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

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