Performance
· 23 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.
733 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.58 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
155 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.007
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.06 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.
5.33 s
Page Load Progression
FPage Weight BudgetAction5.3 MB transferred, 433 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
DJS Execution CostAction2677ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://houseoflacuna.com/ | 740ms | 43ms | 11ms | 1st |
| Unattributable | 520ms | 11ms | 0ms | 1st |
| https://houseoflacuna.com/cdn/shop/t/23/assets/vendor-scripts-v11.js | 284ms | 113ms | 5ms | 1st |
| https://houseoflacuna.com/cdn/wpm/b9f5e2762wb720532ap19708c42m93b2bec3m.js | 190ms | 137ms | 9ms | 1st |
| https://cdn.shopify.com/extensions/01a14e70-35b0-7f65-85bc-21704d5a5e2c/unicorn-boost-1236/assets/main.js | 165ms | 128ms | 16ms | 3rd |
| https://connect.facebook.net/signals/config/826752787047058?v=2.9.419&r=stable&domain=houseoflacuna.com&hme=7459fa3e38c2784dbaf309537bed5fa7e8560fab51fb61e53e5ffafeb46a02a9&ex_m=118%2C241%2C171%2C27%2C82%2C83%2C162%2C78%2C77%2C11%2C181%2C102%2C20%2C153%2C141%2C46%2C85%2C90%2C149%2C176%2C183%2C8%2C4%2C5%2C7%2C6%2C3%2C103%2C115%2C32%2C17%2C31%2C18%2C33%2C34%2C35%2C37%2C55%2C163%2C87%2C126%2C22%2C24%2C51%2C47%2C49%2C48%2C95%2C104%2C108%2C124%2C160%2C164%2C53%2C125%2C29%2C26%2C133%2C79%2C43%2C166%2C165%2C167%2C157%2C155%2C30%2C42%2C66%2C123%2C178%2C80%2C21%2C128%2C93%2C76%2C23%2C97%2C98%2C130%2C96%2C151%2C150%2C154%2C109%2C177%2C180%2C41%2C56%2C127%2C54%2C161%2C72%2C185%2C110%2C184%2C210%2C255%2C84%2C274%2C273%2C272%2C14%2C25%2C28%2C40%2C62%2C117%2C68%2C10%2C73%2C111%2C112%2C113%2C119%2C144%2C38%2C36%2C146%2C147%2C148%2C143%2C142%2C172%2C86%2C175%2C173%2C174%2C57%2C69%2C67%2C137%2C19%2C179%2C52%2C324%2C325%2C326%2C323%2C339%2C361%2C248%2C237%2C70%2C238%2C236%2C364%2C355%2C59%2C249%2C121%2C145%2C92%2C135%2C61%2C134%2C140%2C139%2C65%2C74%2C168%2C88%2C89%2C129%2C44%2C39%2C60%2C63%2C114%2C182%2C1%2C138%2C16%2C136%2C12%2C2%2C64%2C105%2C15%2C75%2C71%2C132%2C101%2C100%2C187%2C188%2C106%2C107%2C9%2C116%2C186%2C58%2C158%2C99%2C91%2C81%2C131%2C120%2C169%2C50%2C159%2C0%2C94%2C152%2C156%2C170%2C45%2C122%2C13%2C189 | 126ms | 111ms | 14ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-319628513 | 109ms | 96ms | 12ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-ERDLH4TN2P | 100ms | 86ms | 14ms | 3rd |
| https://cdn.shopify.com/extensions/01a14416-995f-7951-a981-854ef92a0fd4/judgeme-786/assets/widget_others.js | 91ms | 57ms | 2ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=GT-NC8BGGD4 | 90ms | 78ms | 12ms | 3rd |
Showing top 10 of 14 scripts
FJS BundlesAction275 scripts, 1.3 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.shopify.com/extensions/01a14416-995f-7951-a981-854ef92a0fd4/judgeme-786/assets/widget_write_review_modal.js | 26 KB | 130 KB (93%) | ✓ | 3rd |
| https://cdn.shopify.com/extensions/01a14416-995f-7951-a981-854ef92a0fd4/judgeme-786/assets/widget_write_review_modal.js | 0 KB | 130 KB (93%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-ERDLH4TN2P&cx=c>m=4e6ae1 | 194 KB | 127 KB (66%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=GT-NC8BGGD4&cx=c>m=4e6ae1 | 153 KB | 116 KB (76%) | ✓ | 3rd |
| https://cdn.shopify.com/extensions/01a14e70-35b0-7f65-85bc-21704d5a5e2c/unicorn-boost-1236/assets/main.js | 167 KB | 104 KB (63%) | ✓ | 3rd |
| https://js.squarecdn.com/square-marketplace.js | 139 KB | 81 KB (59%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-ERDLH4TN2P | 194 KB | 77 KB (40%) | ✓ | 3rd |
| https://cdn.shopify.com/extensions/01a14416-995f-7951-a981-854ef92a0fd4/judgeme-786/assets/widget_others.js | 0 KB | 71 KB (78%) | ✓ | 3rd |
| https://cdn.shopify.com/extensions/01a14416-995f-7951-a981-854ef92a0fd4/judgeme-786/assets/widget_others.js | 24 KB | 71 KB (78%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=GT-NC8BGGD4 | 153 KB | 69 KB (45%) | ✓ | 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 InventoryAction433 resources · 5.3 MB · 1.3 MB savings availableFIX
~1.3 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 433 resources | 5.3 MiB | ||||||
BThird-Party Impact43% third-party, 0 ms blockingREVIEW
BImage Optimization38 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Performance issues directly impact user engagement and conversion rates.
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 (31 KB)PASS
Web fonts
2
31 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
- 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)
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Document CompressionDocument response uses brotliPASS
A+Asset CompressionAll 4 asset hosts use brotliPASS
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
Network Waterfall433 requests over 36013msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cdn.shopify.com cdn.shopify.com | Other | 165ms | 167 KB | 63% | €1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 126ms | 161 KB | 27% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 109ms | 165 KB | 32% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 100ms | 194 KB | 40% | €1/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 91ms | 0 KB | 78% | €0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 90ms | 153 KB | 45% | €0/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 81ms | 111 KB | 34% | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 80ms | 45 KB | — | €0/mo | Optional |
js.squarecdn.com js.squarecdn.com | Other | 51ms | 139 KB | 59% | €0/mo | Optional |
63% of cdn.shopify.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
78% of cdn.shopify.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
59% of js.squarecdn.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
Image Optimization58 images, 523 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
58
Total Size
523 KB