Skip to content
https://lush.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
79
GRADE
C
FIX
4
REVIEW
2
PASS
9
INFO
2

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

Mobile Desktop
25
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
91
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.

5.67 s

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

10.82 s

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

3.26 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.124

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

6.95 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.

12.10 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
9 PASS 2 REVIEW 4 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 (1.4 MiB of 1.4 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
8559ms total JS execution
FIX
8559ms total JS execution
Warning::
https://www.lush.com/_next/static/chunks/framework...: 4047ms CPU time
Warning::
https://www.lush.com/_next/static/chunks/pages/_ap...: 1901ms CPU time
Warning::
https://www.lush.com/uk/en: 722ms CPU time
Warning::
Unattributable: 484ms CPU time
Warning::
https://www.lush.com/cdn-cgi/challenge-platform/sc...: 384ms CPU time
Warning::
Third-party scripts: 8559ms (100% of total)

Main Thread Breakdown

Script Evaluation 71% Other 10% Style & Layout 9% Script Parsing & Compilation 6%
ScriptTotalScriptingParse/CompileParty
https://www.lush.com/_next/static/chunks/framework-945b357d4a851f4b.js4047ms3600ms20ms3rd
https://www.lush.com/_next/static/chunks/pages/_app-bb25c12dfb2b26cc.js1901ms1316ms360ms3rd
https://www.lush.com/uk/en722ms89ms15ms3rd
Unattributable484ms18ms0ms3rd
https://www.lush.com/cdn-cgi/challenge-platform/scripts/jsd/main.js384ms368ms4ms3rd
https://www.lush.com/_next/static/chunks/main-b7c9299ea2a9300d.js213ms169ms36ms3rd
https://www.lush.com/_next/static/chunks/8088-ed3d6da5d019b085.js210ms32ms4ms3rd
https://www.lush.com/_next/static/chunks/9997.cc7fe8894e34baec.js187ms143ms1ms3rd
https://www.lush.com/_next/static/chunks/5357-f2def74049049301.js165ms154ms11ms3rd
https://apps.bazaarvoice.com/deployments/lush/main_site/production/en_GB/bv.js123ms108ms12ms3rd

Showing top 10 of 12 scripts

D
Page Weight Inventory
Action
64 resources · 1.4 MB · 154 KB savings available
FIX
64 resources · 1.4 MB · 154 KB savings available
Warning::
Page weight 430 KB over 1MB target
Got: 1.4 MB Expected: ≤ 1 MB
Info::
~154 KB of savings available
Warning::
63 third-party resources (100% of weight)
Info::
1 resources over 200KB
64 resources · 1.4 MiB · 63 third-party 430.1 KiB over 1MB target
JavaScript 57% · 828.3 KiB
Font 25% · 368.5 KiB
Image 8% · 117.1 KiB
Document 6% · 93.9 KiB
CSS 2% · 26.3 KiB
Other 1% · 20.1 KiB

~153.8 KiB of savings available

Remove unused JavaScript: 153.8 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
1.4 MB transferred, 64 requests
REVIEW
1.4 MB transferred, 64 requests
Info::
Page weighs 4.6 MB (1.4 MB transferred)
Warning::
JavaScript is 810 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 810 KB
Info::
Fonts are 368 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 368 KB
Info::
64 HTTP requests
Info::
Estimated 0.30 g CO2 per page load
1.4 MB / 2.4 MB budget
1.4 MB transferred
64 requests
0.30 g CO2 per page load
JavaScript 809.7 KiB 56%
Fonts 368.5 KiB 25%
Images 114.5 KiB 8%
HTML 93.9 KiB 6%
CSS 26.3 KiB 2%
Other 23.4 KiB 2%
Other 17.1 KiB 1%
Other 849 B 0%
0 2.4 MB 4.9 MB
Under 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

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

C
JS Bundles
Action
30 scripts, 154 KB unused
REVIEW
30 scripts, 154 KB unused
Warning::
https://www.lush.com/_next/static/chunks/pages/_ap...: 154 KB unused (27%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 154 KB
154 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.lush.com/_next/static/chunks/pages/_app-bb25c12dfb2b26cc.js567 KB154 KB (27%)✓3rd
https://apps.bazaarvoice.com/deployments/lush/main_site/production/en_GB/bv.js28 KB—✓3rd
https://apps.bazaarvoice.com/deployments/lush/main_site/production/en_GB/api-config.js2 KB—✓3rd
https://www.lush.com/_next/static/chunks/framework-945b357d4a851f4b.js45 KB—✓3rd
https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D-b0eb36bf1c9d8b5b.js5 KB—✓3rd
https://www.lush.com/_next/static/production-c4574453/_buildManifest.js3 KB—✓3rd
https://www.lush.com/_next/static/production-c4574453/_ssgManifest.js1 KB—✓3rd
https://www.lush.com/_next/static/chunks/7938.163588eab48a5777.js2 KB—✓3rd
https://www.lush.com/_next/static/chunks/9997.cc7fe8894e34baec.js3 KB—✓3rd
https://www.lush.com/_next/static/chunks/2030.05244573a17a67ed.js3 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+
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
10 images, 0 KB saveable
PASS
10 images, 0 KB saveable
Info::
All images are well-optimized
10 images 114 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
Font Loading
3 fonts (368 KB)
PASS
3 fonts (368 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

368 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 5.7 s LCP 10.8 shttps://www.lush.com/assets/fonts/inter/Inter-Regular.ttfInter-Regular.ttf https://www.lush.com/assets/fonts/inter/Inter-Regular.ttf — 148.1 KiB — 42 ms — font-display: swaphttps://www.lush.com/assets/fonts/handwritten/LushHandwritten_WLat_Bd.woffLushHandwritten_WLat_Bd... https://www.lush.com/assets/fonts/handwritten/LushHandwritten_WLat_Bd.woff — 61.8 KiB — 206 ms — font-display: swaphttps://www.lush.com/assets/fonts/inter/Inter-Bold.ttfInter-Bold.ttf https://www.lush.com/assets/fonts/inter/Inter-Bold.ttf — 158.6 KiB — 49 ms — font-display: swap
Inter-Regular.ttf ttf swap
Size 148 KB
Load time 42 ms
Start 460 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
LushHandwritten_WLat_Bd... woff swap
Size 62 KB
Load time 206 ms
Start 461 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Inter-Bold.ttf ttf swap
Size 159 KB
Load time 49 ms
Start 461 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~264 KB and ~528 ms

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+
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+
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
64 requests over 2804ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 5.7 s LCP 10.8 shttps://lush.com// https://lush.com/ — 301 — 404 B — 20 ms — h2https://www.lush.com/www.lush.com/ https://www.lush.com/ — 307 — 1.3 KiB — 208 ms — h2https://www.lush.com/uk/enwww.lush.com/uk/en https://www.lush.com/uk/en — 200 — 93.9 KiB — 74 ms — h2https://www.lush.com/cdn-cgi/image/width=750,f=auto/https://res.cloudinary.com/lush/image/upload/v1776264632/collections/WBBD/WBBD-Banner-3.jpgwww.lush.com/cdn-cgi/image/width=75... https://www.lush.com/cdn-cgi/image/width=750,f=auto/https://res.cloudinary.com/lush/image/upload/v1776264632/collections/WBBD/WBBD-Banner-3.jpg — 200 — 30.8 KiB — 31 ms — h3https://www.lush.com/_next/static/css/19afe5c3c4bf5f6c.csswww.lush.com/_next/static/css/19afe... https://www.lush.com/_next/static/css/19afe5c3c4bf5f6c.css — 200 — 24.0 KiB — 62 ms — h3https://www.lush.com/_next/static/css/a4f5974c684634a8.csswww.lush.com/_next/static/css/a4f59... https://www.lush.com/_next/static/css/a4f5974c684634a8.css — 200 — 1.3 KiB — 64 ms — h3https://www.lush.com/_next/static/chunks/webpack-855a510e4c289cb2.jswww.lush.com/_next/static/chunks/we... https://www.lush.com/_next/static/chunks/webpack-855a510e4c289cb2.js — 200 — 4.1 KiB — 59 ms — h3https://www.lush.com/_next/static/chunks/framework-945b357d4a851f4b.jswww.lush.com/_next/static/chunks/fr... https://www.lush.com/_next/static/chunks/framework-945b357d4a851f4b.js — 200 — 44.7 KiB — 64 ms — h3https://www.lush.com/_next/static/chunks/main-b7c9299ea2a9300d.jswww.lush.com/_next/static/chunks/ma... https://www.lush.com/_next/static/chunks/main-b7c9299ea2a9300d.js — 200 — 47.9 KiB — 68 ms — h3https://www.lush.com/_next/static/chunks/pages/_app-bb25c12dfb2b26cc.jswww.lush.com/_next/static/chunks/pa... https://www.lush.com/_next/static/chunks/pages/_app-bb25c12dfb2b26cc.js — 200 — 567.1 KiB — 120 ms — h3https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D-b0eb36bf1c9d8b5b.jswww.lush.com/_next/static/chunks/pa... https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D-b0eb36bf1c9d8b5b.js — 200 — 5.0 KiB — 105 ms — h3data:image/svg+xml,%3csvg%20xmlns=%27http://www.w3.org/2000/svg%27%20version=%271.1%27%20width=%273…www.w3.org/2000/svg%27%20version=%2... data:image/svg+xml,%3csvg%20xmlns=%27http://www.w3.org/2000/svg%27%20version=%271.1%27%20width=%273… — 200 — 0 B — 0 ms — datahttps://www.lush.com/_next/static/production-c4574453/_buildManifest.jswww.lush.com/_next/static/productio... https://www.lush.com/_next/static/production-c4574453/_buildManifest.js — 200 — 2.6 KiB — 109 ms — h3https://www.lush.com/_next/static/production-c4574453/_ssgManifest.jswww.lush.com/_next/static/productio... https://www.lush.com/_next/static/production-c4574453/_ssgManifest.js — 200 — 861 B — 109 ms — h3data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7data:image/gif;base64,R0lGODlhAQABA... data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7 — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAH8AAAB/CAYAAADGvR0TAAAACXBIWXMAASvjAAEr4wGCUnw7AAAgA…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAH8AAAB/CAYAAADGvR0TAAAACXBIWXMAASvjAAEr4wGCUnw7AAAgA… — 200 — 0 B — 0 ms — datahttps://res.cloudinary.com/lush/image/upload/f_auto,q_auto,fl_lossy,w_36/v1590069065/lush_com/site_assets/flags/flag_square/uk.svgres.cloudinary.com/lush/image/uploa... https://res.cloudinary.com/lush/image/upload/f_auto,q_auto,fl_lossy,w_36/v1590069065/lush_com/site_assets/flags/flag_square/uk.svg — 200 — 952 B — 46 ms — h2data:image/gif;base64,R0lGODlhAQABAPAAAAAAAP///yH5BAAAAAAALAAAAAABAAEAAAICRAEAOw==data:image/gif;base64,R0lGODlhAQABA... data:image/gif;base64,R0lGODlhAQABAPAAAAAAAP///yH5BAAAAAAALAAAAAABAAEAAAICRAEAOw== — 200 — 0 B — 0 ms — datadata:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' %3E%3Cfilter id='b' colo…www.w3.org/2000/svg' %3E%3Cfilter i... data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' %3E%3Cfilter id='b' colo… — 200 — 0 B — 0 ms — datahttps://www.lush.com/cdn-cgi/image/width=750,f=auto/https://res.cloudinary.com/lush/image/upload/v1702032831/collections/Hero%20Images/Mask_of_M_NA.jpgwww.lush.com/cdn-cgi/image/width=75... https://www.lush.com/cdn-cgi/image/width=750,f=auto/https://res.cloudinary.com/lush/image/upload/v1702032831/collections/Hero%20Images/Mask_of_M_NA.jpg — 200 — 81.1 KiB — 425 ms — h3https://www.lush.com/assets/fonts/inter/Inter-Regular.ttfwww.lush.com/assets/fonts/inter/Int... https://www.lush.com/assets/fonts/inter/Inter-Regular.ttf — 200 — 148.1 KiB — 42 ms — h3https://www.lush.com/assets/fonts/handwritten/LushHandwritten_WLat_Bd.woffwww.lush.com/assets/fonts/handwritt... https://www.lush.com/assets/fonts/handwritten/LushHandwritten_WLat_Bd.woff — 200 — 61.8 KiB — 206 ms — h3https://www.lush.com/assets/fonts/inter/Inter-Bold.ttfwww.lush.com/assets/fonts/inter/Int... https://www.lush.com/assets/fonts/inter/Inter-Bold.ttf — 200 — 158.6 KiB — 49 ms — h3https://www.lush.com/cdn-cgi/challenge-platform/scripts/jsd/main.jswww.lush.com/cdn-cgi/challenge-plat... https://www.lush.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 450 B — 415 ms — h3https://www.lush.com/_next/static/css/5c4826c56b72a529.csswww.lush.com/_next/static/css/5c482... https://www.lush.com/_next/static/css/5c4826c56b72a529.css — 200 — 929 B — 20 ms — h3https://www.lush.com/_next/static/chunks/7938.163588eab48a5777.jswww.lush.com/_next/static/chunks/79... https://www.lush.com/_next/static/chunks/7938.163588eab48a5777.js — 200 — 1.8 KiB — 21 ms — h3https://www.lush.com/_next/static/chunks/9997.cc7fe8894e34baec.jswww.lush.com/_next/static/chunks/99... https://www.lush.com/_next/static/chunks/9997.cc7fe8894e34baec.js — 200 — 2.9 KiB — 19 ms — h3https://www.lush.com/_next/static/chunks/2030.05244573a17a67ed.jswww.lush.com/_next/static/chunks/20... https://www.lush.com/_next/static/chunks/2030.05244573a17a67ed.js — 200 — 3.4 KiB — 21 ms — h3https://www.lush.com/_next/static/chunks/490.86623b72ad03c2c4.jswww.lush.com/_next/static/chunks/49... https://www.lush.com/_next/static/chunks/490.86623b72ad03c2c4.js — 200 — 4.5 KiB — 24 ms — h3https://www.lush.com/_next/static/chunks/8088-ed3d6da5d019b085.jswww.lush.com/_next/static/chunks/80... https://www.lush.com/_next/static/chunks/8088-ed3d6da5d019b085.js — 200 — 10.9 KiB — 26 ms — h3
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 5.7 s LCP 10.8 shttps://lush.com// https://lush.com/ — 301 — 404 B — 20 ms — h2https://www.lush.com/www.lush.com/ https://www.lush.com/ — 307 — 1.3 KiB — 208 ms — h2https://www.lush.com/uk/enwww.lush.com/uk/en https://www.lush.com/uk/en — 200 — 93.9 KiB — 74 ms — h2https://www.lush.com/cdn-cgi/image/width=750,f=auto/https://res.cloudinary.com/lush/image/upload/v1776264632/collections/WBBD/WBBD-Banner-3.jpgwww.lush.com/cdn-cgi/image/width=75... https://www.lush.com/cdn-cgi/image/width=750,f=auto/https://res.cloudinary.com/lush/image/upload/v1776264632/collections/WBBD/WBBD-Banner-3.jpg — 200 — 30.8 KiB — 31 ms — h3https://www.lush.com/_next/static/css/19afe5c3c4bf5f6c.csswww.lush.com/_next/static/css/19afe... https://www.lush.com/_next/static/css/19afe5c3c4bf5f6c.css — 200 — 24.0 KiB — 62 ms — h3https://www.lush.com/_next/static/css/a4f5974c684634a8.csswww.lush.com/_next/static/css/a4f59... https://www.lush.com/_next/static/css/a4f5974c684634a8.css — 200 — 1.3 KiB — 64 ms — h3https://www.lush.com/_next/static/chunks/webpack-855a510e4c289cb2.jswww.lush.com/_next/static/chunks/we... https://www.lush.com/_next/static/chunks/webpack-855a510e4c289cb2.js — 200 — 4.1 KiB — 59 ms — h3https://www.lush.com/_next/static/chunks/framework-945b357d4a851f4b.jswww.lush.com/_next/static/chunks/fr... https://www.lush.com/_next/static/chunks/framework-945b357d4a851f4b.js — 200 — 44.7 KiB — 64 ms — h3https://www.lush.com/_next/static/chunks/main-b7c9299ea2a9300d.jswww.lush.com/_next/static/chunks/ma... https://www.lush.com/_next/static/chunks/main-b7c9299ea2a9300d.js — 200 — 47.9 KiB — 68 ms — h3https://www.lush.com/_next/static/chunks/pages/_app-bb25c12dfb2b26cc.jswww.lush.com/_next/static/chunks/pa... https://www.lush.com/_next/static/chunks/pages/_app-bb25c12dfb2b26cc.js — 200 — 567.1 KiB — 120 ms — h3https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D-b0eb36bf1c9d8b5b.jswww.lush.com/_next/static/chunks/pa... https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D-b0eb36bf1c9d8b5b.js — 200 — 5.0 KiB — 105 ms — h3data:image/svg+xml,%3csvg%20xmlns=%27http://www.w3.org/2000/svg%27%20version=%271.1%27%20width=%273…www.w3.org/2000/svg%27%20version=%2... data:image/svg+xml,%3csvg%20xmlns=%27http://www.w3.org/2000/svg%27%20version=%271.1%27%20width=%273… — 200 — 0 B — 0 ms — datahttps://www.lush.com/_next/static/production-c4574453/_buildManifest.jswww.lush.com/_next/static/productio... https://www.lush.com/_next/static/production-c4574453/_buildManifest.js — 200 — 2.6 KiB — 109 ms — h3https://www.lush.com/_next/static/production-c4574453/_ssgManifest.jswww.lush.com/_next/static/productio... https://www.lush.com/_next/static/production-c4574453/_ssgManifest.js — 200 — 861 B — 109 ms — h3data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7data:image/gif;base64,R0lGODlhAQABA... data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7 — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAH8AAAB/CAYAAADGvR0TAAAACXBIWXMAASvjAAEr4wGCUnw7AAAgA…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAH8AAAB/CAYAAADGvR0TAAAACXBIWXMAASvjAAEr4wGCUnw7AAAgA… — 200 — 0 B — 0 ms — datahttps://res.cloudinary.com/lush/image/upload/f_auto,q_auto,fl_lossy,w_36/v1590069065/lush_com/site_assets/flags/flag_square/uk.svgres.cloudinary.com/lush/image/uploa... https://res.cloudinary.com/lush/image/upload/f_auto,q_auto,fl_lossy,w_36/v1590069065/lush_com/site_assets/flags/flag_square/uk.svg — 200 — 952 B — 46 ms — h2data:image/gif;base64,R0lGODlhAQABAPAAAAAAAP///yH5BAAAAAAALAAAAAABAAEAAAICRAEAOw==data:image/gif;base64,R0lGODlhAQABA... data:image/gif;base64,R0lGODlhAQABAPAAAAAAAP///yH5BAAAAAAALAAAAAABAAEAAAICRAEAOw== — 200 — 0 B — 0 ms — datadata:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' %3E%3Cfilter id='b' colo…www.w3.org/2000/svg' %3E%3Cfilter i... data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' %3E%3Cfilter id='b' colo… — 200 — 0 B — 0 ms — datahttps://www.lush.com/cdn-cgi/image/width=750,f=auto/https://res.cloudinary.com/lush/image/upload/v1702032831/collections/Hero%20Images/Mask_of_M_NA.jpgwww.lush.com/cdn-cgi/image/width=75... https://www.lush.com/cdn-cgi/image/width=750,f=auto/https://res.cloudinary.com/lush/image/upload/v1702032831/collections/Hero%20Images/Mask_of_M_NA.jpg — 200 — 81.1 KiB — 425 ms — h3https://www.lush.com/assets/fonts/inter/Inter-Regular.ttfwww.lush.com/assets/fonts/inter/Int... https://www.lush.com/assets/fonts/inter/Inter-Regular.ttf — 200 — 148.1 KiB — 42 ms — h3https://www.lush.com/assets/fonts/handwritten/LushHandwritten_WLat_Bd.woffwww.lush.com/assets/fonts/handwritt... https://www.lush.com/assets/fonts/handwritten/LushHandwritten_WLat_Bd.woff — 200 — 61.8 KiB — 206 ms — h3https://www.lush.com/assets/fonts/inter/Inter-Bold.ttfwww.lush.com/assets/fonts/inter/Int... https://www.lush.com/assets/fonts/inter/Inter-Bold.ttf — 200 — 158.6 KiB — 49 ms — h3https://www.lush.com/cdn-cgi/challenge-platform/scripts/jsd/main.jswww.lush.com/cdn-cgi/challenge-plat... https://www.lush.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 450 B — 415 ms — h3https://www.lush.com/_next/static/css/5c4826c56b72a529.csswww.lush.com/_next/static/css/5c482... https://www.lush.com/_next/static/css/5c4826c56b72a529.css — 200 — 929 B — 20 ms — h3https://www.lush.com/_next/static/chunks/7938.163588eab48a5777.jswww.lush.com/_next/static/chunks/79... https://www.lush.com/_next/static/chunks/7938.163588eab48a5777.js — 200 — 1.8 KiB — 21 ms — h3https://www.lush.com/_next/static/chunks/9997.cc7fe8894e34baec.jswww.lush.com/_next/static/chunks/99... https://www.lush.com/_next/static/chunks/9997.cc7fe8894e34baec.js — 200 — 2.9 KiB — 19 ms — h3https://www.lush.com/_next/static/chunks/2030.05244573a17a67ed.jswww.lush.com/_next/static/chunks/20... https://www.lush.com/_next/static/chunks/2030.05244573a17a67ed.js — 200 — 3.4 KiB — 21 ms — h3https://www.lush.com/_next/static/chunks/490.86623b72ad03c2c4.jswww.lush.com/_next/static/chunks/49... https://www.lush.com/_next/static/chunks/490.86623b72ad03c2c4.js — 200 — 4.5 KiB — 24 ms — h3https://www.lush.com/_next/static/chunks/8088-ed3d6da5d019b085.jswww.lush.com/_next/static/chunks/80... https://www.lush.com/_next/static/chunks/8088-ed3d6da5d019b085.js — 200 — 10.9 KiB — 26 ms — h3https://www.lush.com/_next/static/chunks/1491.d863558f6cf9fd8c.jswww.lush.com/_next/static/chunks/14... https://www.lush.com/_next/static/chunks/1491.d863558f6cf9fd8c.js — 200 — 1.8 KiB — 25 ms — h3https://www.lush.com/_next/static/chunks/593.49d6f57d876b2c79.jswww.lush.com/_next/static/chunks/59... https://www.lush.com/_next/static/chunks/593.49d6f57d876b2c79.js — 200 — 1.8 KiB — 24 ms — h3https://apps.bazaarvoice.com/deployments/lush/main_site/production/en_GB/bv.jsapps.bazaarvoice.com/deployments/lu... https://apps.bazaarvoice.com/deployments/lush/main_site/production/en_GB/bv.js — 200 — 27.6 KiB — 17 ms — h2https://www.lush.com/api/basket/get?channel=uk&language=ENwww.lush.com/api/basket/get?channel... https://www.lush.com/api/basket/get?channel=uk&language=EN — 200 — 736 B — 124 ms — h3https://www.lush.com/api/auth/mewww.lush.com/api/auth/me https://www.lush.com/api/auth/me — 204 — 677 B — 528 ms — h3https://www.lush.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?www.lush.com/cdn-cgi/challenge-plat... https://www.lush.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js? — 200 — 12.4 KiB — 7 ms — h3https://www.lush.com/_next/static/chunks/8573-63108213e0049a51.jswww.lush.com/_next/static/chunks/85... https://www.lush.com/_next/static/chunks/8573-63108213e0049a51.js — 200 — 8.0 KiB — 31 ms — h3https://www.lush.com/_next/static/chunks/5357-f2def74049049301.jswww.lush.com/_next/static/chunks/53... https://www.lush.com/_next/static/chunks/5357-f2def74049049301.js — 200 — 27.2 KiB — 31 ms — h3https://www.lush.com/_next/static/chunks/4758.beec23cbecf3813e.jswww.lush.com/_next/static/chunks/47... https://www.lush.com/_next/static/chunks/4758.beec23cbecf3813e.js — 200 — 8.5 KiB — 29 ms — h3https://www.lush.com/api/wyvernwww.lush.com/api/wyvern https://www.lush.com/api/wyvern — 200 — 7.2 KiB — 733 ms — h3https://www.lush.com/favicon.icowww.lush.com/favicon.ico https://www.lush.com/favicon.ico — 200 — 2.7 KiB — 117 ms — h3https://www.lush.com/cdn-cgi/challenge-platform/h/b/jsd/oneshot/0b8fb825cb67/0.701626560664917:1776892374:gQJljF0aZZrIO3IynWNGsIOLzRNC3tjn0Mr3NcjBzVE/9f07b887cd1bfda8www.lush.com/cdn-cgi/challenge-plat... https://www.lush.com/cdn-cgi/challenge-platform/h/b/jsd/oneshot/0b8fb825cb67/0.701626560664917:1776892374:gQJljF0aZZrIO3IynWNGsIOLzRNC3tjn0Mr3NcjBzVE/9f07b887cd1bfda8 — 200 — 849 B — 13 ms — h3https://www.lush.com/cdn-cgi/image/width=640,f=auto/https://res.cloudinary.com/lush/image/upload/f_auto,q_auto/v1675959042/lush_com/site_assets/commerce-site-logo_white.pngwww.lush.com/cdn-cgi/image/width=64... https://www.lush.com/cdn-cgi/image/width=640,f=auto/https://res.cloudinary.com/lush/image/upload/f_auto,q_auto/v1675959042/lush_com/site_assets/commerce-site-logo_white.png — 200 — 1.3 KiB — 17 ms — h3https://www.lush.com/_next/data/production-c4574453/uk/en.json?channel=uk&language=enwww.lush.com/_next/data/production-... https://www.lush.com/_next/data/production-c4574453/uk/en.json?channel=uk&language=en — 200 — 920 B — 131 ms — h3https://www.lush.com/_next/data/production-c4574453/uk/en/c/new-products.json?channel=uk&language=en&slug=new-productswww.lush.com/_next/data/production-... https://www.lush.com/_next/data/production-c4574453/uk/en/c/new-products.json?channel=uk&language=en&slug=new-products — 200 — 935 B — 125 ms — h3https://www.lush.com/_next/data/production-c4574453/uk/en/c/bestsellers.json?channel=uk&language=en&slug=bestsellerswww.lush.com/_next/data/production-... https://www.lush.com/_next/data/production-c4574453/uk/en/c/bestsellers.json?channel=uk&language=en&slug=bestsellers — 200 — 934 B — 310 ms — h3https://www.lush.com/_next/data/production-c4574453/uk/en/c/bath-bombs.json?channel=uk&language=en&slug=bath-bombswww.lush.com/_next/data/production-... https://www.lush.com/_next/data/production-c4574453/uk/en/c/bath-bombs.json?channel=uk&language=en&slug=bath-bombs — 200 — 931 B — 307 ms — h3https://www.lush.com/_next/data/production-c4574453/uk/en/c/calming-and-relaxing-bath-bombs.json?channel=uk&language=en&slug=calming-and-relaxing-bath-bombswww.lush.com/_next/data/production-... https://www.lush.com/_next/data/production-c4574453/uk/en/c/calming-and-relaxing-bath-bombs.json?channel=uk&language=en&slug=calming-and-relaxing-bath-bombs — 200 — 1.6 KiB — 304 ms — h3https://www.lush.com/_next/data/production-c4574453/uk/en/c/sweet-and-comforting-bath-bombs.json?channel=uk&language=en&slug=sweet-and-comforting-bath-bombswww.lush.com/_next/data/production-... https://www.lush.com/_next/data/production-c4574453/uk/en/c/sweet-and-comforting-bath-bombs.json?channel=uk&language=en&slug=sweet-and-comforting-bath-bombs — 200 — 1.5 KiB — 314 ms — h3https://www.lush.com/_next/data/production-c4574453/uk/en/c/citrus-and-uplifting-bath-bombs.json?channel=uk&language=en&slug=citrus-and-uplifting-bath-bombswww.lush.com/_next/data/production-... https://www.lush.com/_next/data/production-c4574453/uk/en/c/citrus-and-uplifting-bath-bombs.json?channel=uk&language=en&slug=citrus-and-uplifting-bath-bombs — 200 — 931 B — 316 ms — h3https://www.lush.com/_next/data/production-c4574453/uk/en/faq/cookie-policy.json?channel=uk&language=en&slug=cookie-policywww.lush.com/_next/data/production-... https://www.lush.com/_next/data/production-c4574453/uk/en/faq/cookie-policy.json?channel=uk&language=en&slug=cookie-policy — 200 — 932 B — 319 ms — h3https://apps.bazaarvoice.com/apps/api/api-0.8.2.jsapps.bazaarvoice.com/apps/api/api-0... https://apps.bazaarvoice.com/apps/api/api-0.8.2.js — 200 — 10.9 KiB — 9 ms — h2https://apps.bazaarvoice.com/deployments/lush/main_site/production/en_GB/api-config.jsapps.bazaarvoice.com/deployments/lu... https://apps.bazaarvoice.com/deployments/lush/main_site/production/en_GB/api-config.js — 200 — 1.5 KiB — 664 ms — h2https://apps.bazaarvoice.com/analytics/bv-analytics.jsapps.bazaarvoice.com/analytics/bv-a... https://apps.bazaarvoice.com/analytics/bv-analytics.js — 200 — 14.2 KiB — 10 ms — h2https://www.lush.com/_next/static/chunks/1242-ddb42909accc6dfe.jswww.lush.com/_next/static/chunks/12... https://www.lush.com/_next/static/chunks/1242-ddb42909accc6dfe.js — 200 — 6.8 KiB — 27 ms — h3https://www.lush.com/_next/static/chunks/8366-40fe9c88ab950093.jswww.lush.com/_next/static/chunks/83... https://www.lush.com/_next/static/chunks/8366-40fe9c88ab950093.js — 200 — 4.4 KiB — 26 ms — h3https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D/c/%5Bslug%5D-ddf8cdf63751f5d6.jswww.lush.com/_next/static/chunks/pa... https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D/c/%5Bslug%5D-ddf8cdf63751f5d6.js — 200 — 3.2 KiB — 26 ms — h3https://network-eu-a.bazaarvoice.com/a.gif?loadId=418aacda3eb7f68f&BVBRANDID=5ba82c5a-b830-40a2-aa37-3be9cf61326a&BVBRANDSID=f79946b1-a745-482f-b154-564802da190e&tz=0&sourceVersion=3.18.4&magpieJsVersion=3.18.4&source=bv-loader&environment=prod&client=lush&dc=12756&host=www.lush.com&r_batch=!((bvProduct:bv-loader,bvProductVersion:%2713.33.3%27,cl:Diagnostic,deploymentZone:main_site,elapsedMs:%273.9000%27,endTime:%272133.0000%27,locale:en_GB,name:timeToRunScout,startTime:%272129.1000%27,type:Performance))&_=4kfyc3network-eu-a.bazaarvoice.com/a.gif?... https://network-eu-a.bazaarvoice.com/a.gif?loadId=418aacda3eb7f68f&BVBRANDID=5ba82c5a-b830-40a2-aa37-3be9cf61326a&BVBRANDSID=f79946b1-a745-482f-b154-564802da190e&tz=0&sourceVersion=3.18.4&magpieJsVersion=3.18.4&source=bv-loader&environment=prod&client=lush&dc=12756&host=www.lush.com&r_batch=!((bvProduct:bv-loader,bvProductVersion:%2713.33.3%27,cl:Diagnostic,deploymentZone:main_site,elapsedMs:%273.9000%27,endTime:%272133.0000%27,locale:en_GB,name:timeToRunScout,startTime:%272129.1000%27,type:Performance))&_=4kfyc3 — 200 — 231 B — 579 ms — h2https://www.lush.com/_next/static/css/a4f5974c684634a8.csswww.lush.com/_next/static/css/a4f59... https://www.lush.com/_next/static/css/a4f5974c684634a8.css — 200 — 0 B — 3 ms — h3https://www.lush.com/_next/static/chunks/1242-ddb42909accc6dfe.jswww.lush.com/_next/static/chunks/12... https://www.lush.com/_next/static/chunks/1242-ddb42909accc6dfe.js — 200 — 0 B — 6 ms — h3https://www.lush.com/_next/static/chunks/8366-40fe9c88ab950093.jswww.lush.com/_next/static/chunks/83... https://www.lush.com/_next/static/chunks/8366-40fe9c88ab950093.js — 200 — 0 B — 7 ms — h3https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D/c/%5Bslug%5D-ddf8cdf63751f5d6.jswww.lush.com/_next/static/chunks/pa... https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D/c/%5Bslug%5D-ddf8cdf63751f5d6.js — 200 — 0 B — 7 ms — h3https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D/faq/%5Bslug%5D-e9d83f3b4a36c6e4.jswww.lush.com/_next/static/chunks/pa... https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D/faq/%5Bslug%5D-e9d83f3b4a36c6e4.js — 200 — 4.3 KiB — 21 ms — h3https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D/faq/%5Bslug%5D-e9d83f3b4a36c6e4.jswww.lush.com/_next/static/chunks/pa... https://www.lush.com/_next/static/chunks/pages/%5Bchannel%5D/%5Blanguage%5D/faq/%5Bslug%5D-e9d83f3b4a36c6e4.js — 200 — 0 B — 2 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
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 8559ms · 841KB · $114/mo
www.lush.com
Other
Costly
Execution 4047ms
Transfer 45 KB
Monthly Cost $54/mo
www.lush.com
Other
Costly
Execution 1901ms
Transfer 567 KB
Unused 27%
Monthly Cost $25/mo
www.lush.com
Other
Costly
Execution 722ms
Transfer 94 KB
Monthly Cost $10/mo
Unattributable
Other
Costly
Execution 484ms
Transfer 0 KB
Monthly Cost $6/mo
www.lush.com
Other
Costly
Execution 384ms
Transfer 0 KB
Monthly Cost $5/mo
www.lush.com
Other
Costly
Execution 213ms
Transfer 48 KB
Monthly Cost $3/mo
www.lush.com
Other
Costly
Execution 210ms
Transfer 11 KB
Monthly Cost $3/mo
www.lush.com
Other
Optional
Execution 187ms
Transfer 3 KB
Monthly Cost $2/mo
www.lush.com
Other
Optional
Execution 165ms
Transfer 27 KB
Monthly Cost $2/mo
apps.bazaarvoice.com
Other
Optional
Execution 123ms
Transfer 28 KB
Monthly Cost $2/mo
apps.bazaarvoice.com
Other
Optional
Execution 70ms
Transfer 14 KB
Monthly Cost $1/mo
www.lush.com
Other
Optional
Execution 53ms
Transfer 5 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.lush.com adds 4047ms and costs ~$54/month
  • www.lush.com adds 1901ms and costs ~$25/month
  • www.lush.com adds 722ms and costs ~$10/month
  • Unattributable adds 484ms and costs ~$6/month
  • www.lush.com adds 384ms and costs ~$5/month
  • www.lush.com adds 213ms and costs ~$3/month
  • www.lush.com adds 210ms and costs ~$3/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.lush.com takes 4047ms 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.lush.com takes 1901ms 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.lush.com takes 722ms 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 484ms 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.lush.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

www.lush.com takes 213ms 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.lush.com takes 210ms 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

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

Send Feedback