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https://all4lace.com

Performance

· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
88
GRADE
B
FIX
3
REVIEW
4
PASS
16
INFO
4

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

Mobile Desktop
54
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
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.

4.99 s

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

7.18 s

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

358 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.

5.47 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.

7.24 s

Page Load Progression

376 ms
753 ms
1.1 s
1.5 s
1.9 s
2.3 s
2.6 s
3.0 s
Checks
27
16 PASS 4 REVIEW 3 FIX
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 (1.5 MiB of 1.5 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
24 resources · 1.5 MB · 36 KB savings available
FIX
24 resources · 1.5 MB · 36 KB savings available
Warning::
Page weight 1.5 MB exceeds 1 MB target by 526 KB
Got: 1.5 MB Expected: ≤ 1 MB
Warning::
23 third-party resources (100% of weight)
Info::
2 resources over 200KB
24 resources · 1.5 MiB · 23 third-party 526.5 KiB over 1MB target
Image 63% · 975.4 KiB
JavaScript 34% · 534.5 KiB
Document 2% · 24.4 KiB
CSS 1% · 14.9 KiB
Other 0% · 1.3 KiB

~35.6 KiB of savings available

Remove unused JavaScript: 35.6 KiB
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
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
Page Weight Budget
1.5 MB transferred, 24 requests
REVIEW
1.5 MB transferred, 24 requests
Info::
Page weighs 3.4 MB (1.5 MB transferred)
Warning::
JavaScript is 534 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 534 KB
Info::
24 HTTP requests
Info::
Estimated 0.32 g CO2 per page load
1.5 MB / 2.4 MB budget
1.5 MB transferred
24 requests
0.32 g CO2 per page load
Images 957.2 KiB 62%
JavaScript 534.5 KiB 34%
HTML 24.0 KiB 2%
Other 18.7 KiB 1%
CSS 14.9 KiB 1%
Other 822 B 0%
Other 472 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

C
JS Execution Cost
Action
1888ms total JS execution
REVIEW
1888ms total JS execution
Warning::
https://www.all4lace.com/: 857ms CPU time
Warning::
Unattributable: 503ms CPU time
Warning::
https://www.all4lace.com/assets/vendor-ui-fCpWOOfx...: 447ms CPU time
Info::
https://www.all4lace.com/assets/index-C-o4MMtD.js: 81ms CPU time
Warning::
Third-party scripts: 1385ms (73% of total)

Main Thread Breakdown

Other 35% Style & Layout 28% Script Evaluation 28% Rendering 7%
ScriptTotalScriptingParse/CompileParty
https://www.all4lace.com/857ms38ms1ms3rd
Unattributable503ms83ms0ms1st
https://www.all4lace.com/assets/vendor-ui-fCpWOOfx.js447ms359ms0ms3rd
https://www.all4lace.com/assets/index-C-o4MMtD.js81ms14ms3ms3rd
C
Document Compression
Action
Document response served uncompressed
REVIEW
Document response served uncompressed
Info::
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.
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
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.
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+
Image Optimization
11 images, 0 KB saveable
PASS
11 images, 0 KB saveable
Info::
All images are well-optimized
11 images 957 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+
JS Bundles
6 scripts, 36 KB unused
PASS
6 scripts, 36 KB unused
Warning::
https://www.all4lace.com/assets/vendor-ui-fCpWOOfx...: 36 KB unused (47%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 36 KB
36 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.all4lace.com/assets/vendor-ui-fCpWOOfx.js75 KB36 KB (47%)✓3rd
https://www.all4lace.com/assets/index-C-o4MMtD.js439 KB—✓3rd
https://www.all4lace.com/assets/vendor-react-C-c-olRr.js8 KB—✓3rd
https://www.all4lace.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js1 KB—✓3rd
https://static.cloudflareinsights.com/beacon.min.js/vce701823e78c4301a35b7e07294d8730179208881409210 KB—✓3rd
https://www.all4lace.com/assets/site-FmFgRqLi.js1 KB—✓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

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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
—
preload
—
dns-prefetch
2
prefetch
—

2 resource hints configured

A+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
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+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Server-Timing Observability
2 Server-Timing entries advertised
PASS
2 Server-Timing entries advertised
Info::
Server-Timing header advertises 2 timing entries
A+
Server Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
Info::
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
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
JavaScript Blocking
No render-blocking JS or document.write usage detected
PASS
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues detected
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues 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

Asset Compression
No text asset hosts to measure
INFO
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall
24 requests over 1507ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 5.0 s LCP 7.2 shttps://all4lace.com// https://all4lace.com/ — 301 — 456 B — 63 ms — h2https://www.all4lace.com/www.all4lace.com/ https://www.all4lace.com/ — 200 — 24.0 KiB — 149 ms — h2https://www.all4lace.com/assets/index-C-o4MMtD.jswww.all4lace.com/assets/index-C-o4M... https://www.all4lace.com/assets/index-C-o4MMtD.js — 200 — 438.9 KiB — 160 ms — h2https://www.all4lace.com/assets/vendor-ui-fCpWOOfx.jswww.all4lace.com/assets/vendor-ui-f... https://www.all4lace.com/assets/vendor-ui-fCpWOOfx.js — 200 — 75.5 KiB — 104 ms — h2https://www.all4lace.com/assets/vendor-react-C-c-olRr.jswww.all4lace.com/assets/vendor-reac... https://www.all4lace.com/assets/vendor-react-C-c-olRr.js — 200 — 8.3 KiB — 62 ms — h2https://www.all4lace.com/assets/index-DSLXS4jx.csswww.all4lace.com/assets/index-DSLXS... https://www.all4lace.com/assets/index-DSLXS4jx.css — 200 — 14.9 KiB — 113 ms — h2https://www.all4lace.com/assets/hero-bg-mobile-clean-T0Jj09Vf.webpwww.all4lace.com/assets/hero-bg-mob... https://www.all4lace.com/assets/hero-bg-mobile-clean-T0Jj09Vf.webp — 200 — 396.1 KiB — 134 ms — h2https://www.all4lace.com/assets/whatsapp-qr-rose-UVsOMB_M.pngwww.all4lace.com/assets/whatsapp-qr... https://www.all4lace.com/assets/whatsapp-qr-rose-UVsOMB_M.png — 200 — 35.8 KiB — 67 ms — h2https://www.all4lace.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.jswww.all4lace.com/cdn-cgi/scripts/5c... https://www.all4lace.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js — 200 — 944 B — 37 ms — h2https://static.cloudflareinsights.com/beacon.min.js/vce701823e78c4301a35b7e07294d87301792088814092static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/vce701823e78c4301a35b7e07294d87301792088814092 — 200 — 10.2 KiB — 98 ms — h2https://www.all4lace.com/site.webmanifestwww.all4lace.com/site.webmanifest https://www.all4lace.com/site.webmanifest — 200 — 822 B — 86 ms — h3https://www.all4lace.com/assets/site-FmFgRqLi.jswww.all4lace.com/assets/site-FmFgRq... https://www.all4lace.com/assets/site-FmFgRqLi.js — 200 — 596 B — 69 ms — h3https://www.all4lace.com/cdn-cgi/rum?www.all4lace.com/cdn-cgi/rum? https://www.all4lace.com/cdn-cgi/rum? — 204 — 472 B — 32 ms — h3https://www.all4lace.com/favicon.icowww.all4lace.com/favicon.ico https://www.all4lace.com/favicon.ico — 200 — 2.9 KiB — 57 ms — h3https://www.all4lace.com/android-chrome-192x192.pngwww.all4lace.com/android-chrome-192... https://www.all4lace.com/android-chrome-192x192.png — 200 — 15.4 KiB — 79 ms — h3https://www.all4lace.com/assets/c690a7162558e5efd91d25ea-B9J3n2ZV.webpwww.all4lace.com/assets/c690a716255... https://www.all4lace.com/assets/c690a7162558e5efd91d25ea-B9J3n2ZV.webp — 200 — 38.3 KiB — 104 ms — h3https://www.all4lace.com/assets/45888cd4907351c5bad394c0-CCVW82uQ.webpwww.all4lace.com/assets/45888cd4907... https://www.all4lace.com/assets/45888cd4907351c5bad394c0-CCVW82uQ.webp — 200 — 95.7 KiB — 121 ms — h3https://www.all4lace.com/assets/5e123b774afdb68b82b4174a-3mWVnm0z.webpwww.all4lace.com/assets/5e123b774af... https://www.all4lace.com/assets/5e123b774afdb68b82b4174a-3mWVnm0z.webp — 200 — 59.4 KiB — 79 ms — h3https://www.all4lace.com/assets/ab1f2f2c6900fc660b07da14-ByhvueCu.webpwww.all4lace.com/assets/ab1f2f2c690... https://www.all4lace.com/assets/ab1f2f2c6900fc660b07da14-ByhvueCu.webp — 200 — 76.4 KiB — 120 ms — h3https://www.all4lace.com/assets/14cd89023cdff55d66a1494c-CYg4iGVQ.webpwww.all4lace.com/assets/14cd89023cd... https://www.all4lace.com/assets/14cd89023cdff55d66a1494c-CYg4iGVQ.webp — 200 — 96.3 KiB — 119 ms — h3https://www.all4lace.com/assets/black-rosette-scallop-mesh-trim-hero-thumb-BDxaAIOh.webpwww.all4lace.com/assets/black-roset... https://www.all4lace.com/assets/black-rosette-scallop-mesh-trim-hero-thumb-BDxaAIOh.webp — 200 — 12.1 KiB — 91 ms — h3https://www.all4lace.com/assets/d010188d693571bed80ac340-4ICrWnWY.webpwww.all4lace.com/assets/d010188d693... https://www.all4lace.com/assets/d010188d693571bed80ac340-4ICrWnWY.webp — 200 — 42.7 KiB — 115 ms — h3https://www.all4lace.com/assets/8ef75828fe21e9eaf60ea1f3-D4VKZBOr.webpwww.all4lace.com/assets/8ef75828fe2... https://www.all4lace.com/assets/8ef75828fe21e9eaf60ea1f3-D4VKZBOr.webp — 200 — 79.9 KiB — 120 ms — h3https://www.all4lace.com/assets/multicolour-braided-wave-decorative-trim-hero-thumb-DobS2q2G.webpwww.all4lace.com/assets/multicolour... https://www.all4lace.com/assets/multicolour-braided-wave-decorative-trim-hero-thumb-DobS2q2G.webp — 200 — 24.4 KiB — 92 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
73% of JavaScript execution is third-party
First-party Third-party 1385ms · 538KB · $24/mo
www.all4lace.com
Other
Costly
Execution 857ms
Transfer 24 KB
Monthly Cost $15/mo
www.all4lace.com
Other
Costly
Execution 447ms
Transfer 75 KB
Unused 47%
Monthly Cost $8/mo
www.all4lace.com
Other
Optional
Execution 81ms
Transfer 439 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.all4lace.com adds 857ms and costs ~$15/month
  • www.all4lace.com adds 447ms and costs ~$8/month

73% 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.all4lace.com takes 857ms 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.all4lace.com takes 447ms 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

How third-party costs are calculated

Image Optimization
200 images, 1319 KB total, 783 KB wasted
INFO

Image Optimization Audit

Total Images

200

Total Size

1319 KB

Oversized

9

Wasted

783 KB

13 missing dimensions
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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