Performance
· 26 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.
2.19 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.62 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
399 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
11.04 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.
11.88 s
Page Load Progression
FPage Weight BudgetAction57.7 MB transferred, 369 requestsFIX
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
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
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 CostAction16411ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 6990ms | 202ms | 0ms | 1st |
| https://ernewyork1.com/ | 5955ms | 269ms | 29ms | 1st |
| https://ernewyork1.com/cdn/shop/t/2/assets/scrolling.js?v=10957690925586738441778967054 | 731ms | 125ms | 0ms | 1st |
| https://unpkg.com/swiper@8/swiper-bundle.min.js | 514ms | 198ms | 11ms | 3rd |
| https://ernewyork1.com/cdn/shopifycloud/shop-js/modules/v2/chunk.index_BqoYK0tS.esm.js | 391ms | 178ms | 0ms | 1st |
| https://ernewyork1.com/cdn/shop/t/2/assets/utilities.js?v=20543301071820501481778967054 | 295ms | 85ms | 0ms | 1st |
| https://ernewyork1.com/cdn/wpm/ba6b9c454w7b023680pb7fefabem62184d01m.js | 292ms | 216ms | 20ms | 1st |
| https://connect.facebook.net/en_US/fbevents.js | 274ms | 224ms | 30ms | 3rd |
| https://connect.facebook.net/signals/config/27293879100265379?v=2.9.385&r=stable&domain=ernewyork1.com&im=1&hme=1a72ec78e057d90ba48afa55a82b063b1c9b6ab7c0155009fecc72226a622ed2&ex_m=113%2C218%2C164%2C25%2C78%2C79%2C156%2C74%2C73%2C11%2C174%2C98%2C19%2C148%2C136%2C43%2C81%2C86%2C144%2C169%2C176%2C29%2C17%2C30%2C31%2C32%2C34%2C52%2C157%2C83%2C121%2C21%2C23%2C48%2C44%2C46%2C45%2C91%2C100%2C104%2C119%2C155%2C158%2C50%2C120%2C27%2C24%2C128%2C75%2C40%2C160%2C159%2C161%2C152%2C150%2C28%2C39%2C63%2C118%2C171%2C76%2C20%2C123%2C89%2C72%2C22%2C93%2C94%2C125%2C92%2C146%2C145%2C149%2C105%2C170%2C173%2C38%2C53%2C122%2C51%2C8%2C4%2C5%2C7%2C6%2C3%2C99%2C110%2C177%2C185%2C232%2C80%2C245%2C244%2C243%2C14%2C26%2C37%2C59%2C112%2C65%2C10%2C69%2C106%2C107%2C108%2C114%2C139%2C35%2C33%2C141%2C142%2C143%2C138%2C137%2C165%2C82%2C168%2C166%2C167%2C54%2C64%2C132%2C18%2C172%2C49%2C293%2C294%2C292%2C307%2C329%2C225%2C214%2C66%2C215%2C213%2C332%2C323%2C56%2C226%2C116%2C140%2C88%2C130%2C58%2C129%2C135%2C134%2C62%2C70%2C68%2C162%2C84%2C85%2C124%2C41%2C36%2C57%2C60%2C109%2C175%2C1%2C133%2C16%2C131%2C12%2C2%2C61%2C101%2C15%2C71%2C67%2C127%2C97%2C96%2C178%2C179%2C102%2C103%2C9%2C111%2C55%2C153%2C95%2C87%2C77%2C126%2C115%2C47%2C154%2C0%2C90%2C147%2C151%2C163%2C42%2C117%2C13%2C180 | 212ms | 153ms | 26ms | 3rd |
| https://ernewyork1.com/cdn/s/trekkie.storefront.c3de4351cec0b617fdf79b803eb104cc6c0d8097.min.js | 190ms | 144ms | 15ms | 1st |
Showing top 10 of 16 scripts
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BJS Bundles251 scripts, 89 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://connect.facebook.net/en_US/fbevents.js | 105 KB | 36 KB (34%) | ✓ | 3rd |
| https://ernewyork1.com/cdn/wpm/ba6b9c454w7b023680pb7fefabem62184d01m.js | 71 KB | 31 KB (45%) | ✓ | 1st |
| https://connect.facebook.net/signals/config/27293879100265379?v=2.9.385&r=stable&domain=ernewyork1.com&im=1&hme=1a72ec78e057d90ba48afa55a82b063b1c9b6ab7c0155009fecc72226a622ed2&ex_m=113%2C218%2C164%2C25%2C78%2C79%2C156%2C74%2C73%2C11%2C174%2C98%2C19%2C148%2C136%2C43%2C81%2C86%2C144%2C169%2C176%2C29%2C17%2C30%2C31%2C32%2C34%2C52%2C157%2C83%2C121%2C21%2C23%2C48%2C44%2C46%2C45%2C91%2C100%2C104%2C119%2C155%2C158%2C50%2C120%2C27%2C24%2C128%2C75%2C40%2C160%2C159%2C161%2C152%2C150%2C28%2C39%2C63%2C118%2C171%2C76%2C20%2C123%2C89%2C72%2C22%2C93%2C94%2C125%2C92%2C146%2C145%2C149%2C105%2C170%2C173%2C38%2C53%2C122%2C51%2C8%2C4%2C5%2C7%2C6%2C3%2C99%2C110%2C177%2C185%2C232%2C80%2C245%2C244%2C243%2C14%2C26%2C37%2C59%2C112%2C65%2C10%2C69%2C106%2C107%2C108%2C114%2C139%2C35%2C33%2C141%2C142%2C143%2C138%2C137%2C165%2C82%2C168%2C166%2C167%2C54%2C64%2C132%2C18%2C172%2C49%2C293%2C294%2C292%2C307%2C329%2C225%2C214%2C66%2C215%2C213%2C332%2C323%2C56%2C226%2C116%2C140%2C88%2C130%2C58%2C129%2C135%2C134%2C62%2C70%2C68%2C162%2C84%2C85%2C124%2C41%2C36%2C57%2C60%2C109%2C175%2C1%2C133%2C16%2C131%2C12%2C2%2C61%2C101%2C15%2C71%2C67%2C127%2C97%2C96%2C178%2C179%2C102%2C103%2C9%2C111%2C55%2C153%2C95%2C87%2C77%2C126%2C115%2C47%2C154%2C0%2C90%2C147%2C151%2C163%2C42%2C117%2C13%2C180 | 69 KB | 22 KB (31%) | ✓ | 3rd |
| https://ernewyork1.com/cdn/shop/t/2/assets/view-transitions.js?v=84877080446900032951778967054 | 1 KB | — | ✓ | 1st |
| https://ernewyork1.com/cdn/shop/t/2/assets/critical.js?v=169402557219780209121778967054 | 3 KB | — | ✓ | 1st |
| https://ernewyork1.com/cdn/shopifycloud/shop-js/modules/v2/loader.init-shop-cart-sync.es.esm.js | 1 KB | — | ✓ | 1st |
| https://ernewyork1.com/cdn/shopifycloud/shop-js/modules/v2/loader.shop-login-button.es.esm.js | 1 KB | — | ✓ | 1st |
| https://ernewyork1.com/cdn/shop/t/2/assets/dialog.js?v=94382931671780430451778967054 | 1 KB | — | ✓ | 1st |
| https://ernewyork1.com/cdn/shop/t/2/assets/header.js?v=78043468934677320351778967054 | 2 KB | — | ✓ | 1st |
| https://ernewyork1.com/cdn/shop/t/2/assets/utilities.js?v=20543301071820501481778967054 | 3 KB | — | ✓ | 1st |
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
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
CPage Weight InventoryAction369 resources · 57.7 MB · 89 KB savings availableREVIEW
~88.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 369 resources | 57.7 MiB | ||||||
BCSS Performance Depth2 CSS depth issue(s) detectedREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
AThird-Party Impact29% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
AImage Optimization31 images, 0 KB saveablePASS
A+Font Loading5 fonts (115 KB)PASS
Web fonts
5
115 KB total
Render-blocking
0
of 5
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 Hints11 hints, 0 missing preconnectsPASS
Current Resource Hints
11 resource hints configured
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: //ernewyork1.com/cdn/fonts/montserrat/montserrat_n5.07ef3781d9c78c8b93c98419da7ad4fbeebb6635.woff2 (preload+preload).
Performance issues directly impact user engagement and conversion rates.
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Compression AlgorithmMain response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server-Timing Observability17 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
Network Waterfall369 requests over 36630msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
unpkg unpkg.com | CDN | 514ms | 0 KB | — | €3/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 274ms | 105 KB | 34% | €1/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 212ms | 69 KB | 31% | €1/mo | Costly |
cdn.shopify.com cdn.shopify.com | Other | 182ms | 18 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- unpkg adds 514ms and costs ~€3/month
- Facebook Pixel adds 274ms and costs ~€1/month
- Facebook Pixel adds 212ms and costs ~€1/month
unpkg takes 514ms 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 274ms 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 212ms 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
Image Optimization81 images, 1546 KB total, 577 KB wastedINFO
Image Optimization Audit
Total Images
81
Total Size
1546 KB
Oversized
9
Wasted
577 KB