Performance
· 28 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
3.37 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
30.35 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.65 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.072
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
18.13 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.
44.07 s
Page Load Progression
FPage Weight BudgetAction8.2 MB transferred, 475 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
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.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
FJS Execution CostAction14369ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://luluclothes.com/ | 3270ms | 98ms | 39ms | 1st |
| Unattributable | 1964ms | 59ms | 0ms | 1st |
| event-observer-collector.js | 1532ms | 648ms | 0ms | 1st |
| https://luluclothes.com/cdn/wpm/b264bf420w2e1681cap8d55857fm7d879f9cm.js | 1114ms | 850ms | 25ms | 1st |
| https://www.gstatic.com/recaptcha/releases/bSuJ2xBC8cFy7pM4Z3Hu9boH/recaptcha__en.js | 917ms | 786ms | 66ms | 3rd |
| https://sdks.automizely.com/conversions/v1/am_988.7efdcc28.js | 743ms | 614ms | 39ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-16566530552&cx=c>m=4e6ar0 | 651ms | 492ms | 48ms | 3rd |
| https://luluclothes.com/cdn/shop/t/46/assets/global.js?v=54259671884418963051744268377 | 615ms | 43ms | 3ms | 1st |
| https://connect.facebook.net/en_US/fbevents.js | 470ms | 434ms | 26ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-11034348527 | 426ms | 384ms | 41ms | 3rd |
Showing top 10 of 31 scripts
FJS BundlesAction255 scripts, 1.6 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.gstatic.com/recaptcha/releases/bSuJ2xBC8cFy7pM4Z3Hu9boH/recaptcha__en.js | 0 KB | 180 KB (52%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/bSuJ2xBC8cFy7pM4Z3Hu9boH/recaptcha__en.js | 348 KB | 180 KB (52%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/bSuJ2xBC8cFy7pM4Z3Hu9boH/recaptcha__en.js | 349 KB | 180 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-16566530552 | 195 KB | 129 KB (66%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-16566530552 | 195 KB | 129 KB (66%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=GT-TQDTN2PC&cx=c>m=4e6ar0 | 155 KB | 118 KB (76%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-11034348527&cx=c>m=4e6ar0 | 167 KB | 117 KB (70%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=GT-TQDTN2PC | 155 KB | 71 KB (46%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-59W4V2WW | 128 KB | 63 KB (49%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-59W4V2WW | 128 KB | 63 KB (49%) | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction475 resources · 8.2 MB · 1.6 MB savings availableFIX
~1.6 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 475 resources | 8.2 MiB | ||||||
BThird-Party Impact45% third-party, 0 ms blockingREVIEW
BImage Optimization51 images, 0 KB saveableREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingprivate, max-age=0, must-revalidateREVIEW
private, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading2 fonts (48 KB)PASS
Web fonts
2
48 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints176 hints, 0 missing preconnectsPASS
Current Resource Hints
176 resource hints configured
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Document CompressionDocument response uses brotliPASS
AAsset Compression1 of 3 asset hosts still on gzipPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
A+Server-Timing Observability18 Server-Timing entries advertisedPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
Network Waterfall475 requests over 22048msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.gstatic.com www.gstatic.com | Other | 917ms | 0 KB | 52% | €5/mo | Costly |
sdks.automizely.com sdks.automizely.com | Other | 743ms | 0 KB | — | €4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 651ms | 195 KB | 29% | €3/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 470ms | 112 KB | 34% | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 426ms | 167 KB | 36% | €2/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 227ms | 95 KB | 34% | €1/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 199ms | 155 KB | 46% | €1/mo | Optional |
sdks.automizely.com sdks.automizely.com | Other | 189ms | 0 KB | 66% | €1/mo | Optional |
Hotjar script.hotjar.com | Session Replay | 180ms | 57 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 180ms | 128 KB | 49% | €1/mo | Optional |
cdn-widgetsrepository.yotpo.com cdn-widgetsrepository.yotpo.com | Other | 93ms | 10 KB | — | €0/mo | Optional |
sdks.automizely.com sdks.automizely.com | Other | 84ms | 0 KB | — | €0/mo | Optional |
sdks.automizely.com sdks.automizely.com | Other | 80ms | 0 KB | — | €0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 65ms | 167 KB | 70% | €0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 63ms | 195 KB | 66% | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 63ms | 15 KB | — | €0/mo | Optional |
sdks.automizely.com sdks.automizely.com | Other | 60ms | 19 KB | — | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 58ms | 23 KB | — | €0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 54ms | 155 KB | 76% | €0/mo | Optional |
These scripts may cost more than they're worth
- www.gstatic.com adds 917ms and costs ~€5/month
- sdks.automizely.com adds 743ms and costs ~€4/month
- Google Tag Manager adds 651ms and costs ~€3/month
- Facebook Pixel adds 470ms and costs ~€2/month
- Google Tag Manager adds 426ms and costs ~€2/month
- Facebook Pixel adds 227ms and costs ~€1/month
www.gstatic.com takes 917ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
52% of www.gstatic.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
sdks.automizely.com takes 743ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 651ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Facebook Pixel takes 470ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 426ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Facebook Pixel takes 227ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
66% of sdks.automizely.com's code is unused. The script may be loading features you don't use.
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.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
66% of Google Tag Manager's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
76% of Google Tag Manager's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-29 — 2026-10-26)
LCP (p75)
1858 ms
87% good
INP (p75)
127 ms
85% good
CLS (p75)
0.050
90% good
FCP (p75)
1181 ms
TTFB (p75)
442 ms
Image Optimization200 images, 1177 KB total, 9 KB wastedINFO
Image Optimization Audit
Total Images
200
Total Size
1177 KB
Oversized
1
Wasted
9 KB