https://ernewyork1.com
Performance
· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
84
GRADE
B
FIX
3
REVIEW
5
PASS
11
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
96
81
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
391 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.23 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
10 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.27 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.
2.48 s
Page Load Progression
2.1 s 4.2 s
6.2 s
8.3 s
10.4 s 12.5 s
14.6 s
16.6 sChecks
2211 PASS 5 REVIEW 3 FIX
FPage Weight BudgetAction50.5 MB transferred, 366 requestsFIX
Page Weight Budget
Action50.5 MB transferred, 366 requests
50.5 MB transferred, 366 requests
Critical::
Page weighs 53.5 MB (50.5 MB transferred)
Warning::
Images are 1.4 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.4 MB
Warning::
JavaScript is 771 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 771 KB
Warning::
366 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 10.6 g CO2 per page load
50.5 MB transferred
366 requests
10.6 g CO2 per page load
Other 47.2 MiB 93%
Images 1.4 MiB 3%
Other 831.2 KiB 2%
JavaScript 770.5 KiB 1%
Fonts 114.8 KiB 0%
HTML 110.0 KiB 0%
Other 42.5 KiB 0%
Other 11.1 KiB 0%
CSS 9.9 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Why this matters
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.
Why this matters
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.
Why this matters
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DJS Execution CostAction2378ms total JS executionFIX
JS Execution Cost
Action2378ms total JS execution
2378ms total JS execution
Warning::
Unattributable: 1149ms CPU time
Warning::
https://ernewyork1.com/: 635ms CPU time
Info::
event-observer-collector.js: 128ms CPU time
Info::
https://ernewyork1.com/cdn/wpm/ba6b9c454w7b023680p...: 85ms CPU time
Info::
https://connect.facebook.net/signals/config/272938...: 74ms CPU time
Info::
Third-party scripts: 254ms (11% of total)
Main Thread Breakdown
Other 59% Script Evaluation 24% Style & Layout 11%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 1149ms | 24ms | 0ms | 1st |
| https://ernewyork1.com/ | 635ms | 19ms | 7ms | 1st |
| event-observer-collector.js | 128ms | 93ms | 0ms | 1st |
| https://ernewyork1.com/cdn/wpm/ba6b9c454w7b023680pb7fefabem62184d01m.js | 85ms | 57ms | 7ms | 1st |
| https://connect.facebook.net/signals/config/27293879100265379?v=2.9.385&r=stable&domain=ernewyork1.com&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 | 74ms | 55ms | 6ms | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 70ms | 57ms | 9ms | 3rd |
| https://ernewyork1.com/cdn/shop/t/2/assets/utilities.js?v=20543301071820501481778967054 | 67ms | 20ms | 0ms | 1st |
| https://ernewyork1.com/cdn/shopifycloud/shop-js/modules/v2/chunk.index_BqoYK0tS.esm.js | 60ms | 47ms | 0ms | 1st |
| https://unpkg.com/swiper@8/swiper-bundle.min.js | 57ms | 24ms | 4ms | 3rd |
| https://cdn.shopify.com/extensions/01a01cd3-c0cb-726d-9986-ed6809642d0e/glo-color-swatch-248/assets/globo.swatch.bundle.collection.3f288cf1b9137f31eb0a.js | 53ms | 37ms | 1ms | 3rd |
FHTTP CachingActionNo cache headersFIX
HTTP Caching
ActionNo cache headers
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
Info::
ETag present — enables conditional (304) responses
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization29 images, 0 KB saveableREVIEW
Image Optimization
29 images, 0 KB saveable
29 images, 0 KB saveable
Info::
All images are well-optimized
29 images 1.4 MB
0 oversized -0 KB
4 legacy format
0 missing dimensions CLS risk
BJS Bundles251 scripts, 88 KB unusedREVIEW
JS Bundles
251 scripts, 88 KB unused
251 scripts, 88 KB unused
Warning::
https://connect.facebook.net/en_US/fbevents.js: 35 KB unused (34%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://ernewyork1.com/cdn/wpm/ba6b9c454w7b023680p...: 31 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://connect.facebook.net/signals/config/272938...: 21 KB unused (31%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 88 KB
88 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://connect.facebook.net/en_US/fbevents.js | 105 KB | 35 KB (34%) | ✓ | 3rd |
| https://ernewyork1.com/cdn/wpm/ba6b9c454w7b023680pb7fefabem62184d01m.js | 71 KB | 31 KB (44%) | ✓ | 1st |
| https://connect.facebook.net/signals/config/27293879100265379?v=2.9.385&r=stable&domain=ernewyork1.com&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 | 21 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.
Why this matters
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.
Why this matters
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.
Why this matters
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
Main HTML Cache-Control
No Cache-Control header on main HTML response
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.
CPage Weight InventoryAction366 resources · 50.5 MB · 88 KB savings availableREVIEW
Page Weight Inventory
Action366 resources · 50.5 MB · 88 KB savings available
366 resources · 50.5 MB · 88 KB savings available
Warning::
Page weight 50.5 MB exceeds 1 MB target by 49.5 MB
Got: 50.5 MB Expected: ≤ 1 MB
Info::
~88 KB of savings available
Info::
92 third-party resources (31% of weight)
Info::
7 resources over 200KB
366 resources · 50.5 MiB · 92 third-party 49.5 MiB over 1MB target
Media 93% · 47.2 MiB
JavaScript 3% · 1.5 MiB
Image 3% · 1.5 MiB
Document 0% · 138.2 KiB
Font 0% · 114.8 KiB
CSS 0% · 64.9 KiB
Other 0% · 14.9 KiB
~87.5 KiB of savings available
Remove unused JavaScript: 87.5 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 366 resources | 50.5 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
AThird-Party Impact31% third-party, 0 ms blockingPASS
Third-Party Impact
31% third-party, 0 ms blocking
31% third-party, 0 ms blocking
Info::
Third-party code accounts for 31% of page weight (15.6 MiB of 50.5 MiB)
Info::
Third-party blocking time is low (0 ms)
69%
31%
First-party Third-party
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+Font Loading5 fonts (115 KB)PASS
Font Loading
5 fonts (115 KB)
5 fonts (115 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
5
115 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
montserrat_n4.81949fa0a... woff2 swap
Size 20 KB
Load time 41 ms
Start 390 ms
Risk FOUT — text flashes from fallback to web font
montserrat_n5.07ef3781d... woff2 swap
Size 19 KB
Load time 39 ms
Start 391 ms
Risk FOUT — text flashes from fallback to web font
mavenpro_n5.ce007c5b78c... woff2 swap
Size 13 KB
Load time 54 ms
Start 391 ms
Risk FOUT — text flashes from fallback to web font
montserrat_n7.3c434e22b... woff2 swap
Size 20 KB
Load time 94 ms
Start 504 ms
Risk FOUT — text flashes from fallback to web font
inter_i5.4474f48e6ab2b1... woff2 swap
Size 43 KB
Load time 41 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
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
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
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+Compression AlgorithmMain response uses brotliPASS
Compression Algorithm
Main response uses brotli
Main response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Server-Timing Observability17 Server-Timing entries advertisedPASS
Server-Timing Observability
17 Server-Timing entries advertised
17 Server-Timing entries advertised
Info::
Server-Timing header advertises 17 timing entries
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Info::
`Vary` header declared: accept-encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
`ETag` present -- conditional GET supported
Network Waterfall366 requests over 17633msINFO
Network Waterfall
366 requests over 17633ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
11% of JavaScript execution is third-party
First-party Third-party 254ms · 193KB · €1/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Facebook Pixel connect.facebook.net | Advertising | 74ms | 69 KB | 31% | €0/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 70ms | 105 KB | 34% | €0/mo | Optional |
unpkg unpkg.com | CDN | 57ms | 0 KB | — | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 53ms | 18 KB | — | €0/mo | Optional |
Facebook Pixel
Advertising
Execution 74ms
Transfer 69 KB
Unused 31%
Monthly Cost €0/mo
Facebook Pixel
Advertising
Execution 70ms
Transfer 105 KB
Unused 34%
Monthly Cost €0/mo
unpkg
CDN
Execution 57ms
Transfer 0 KB
Monthly Cost €0/mo
cdn.shopify.com
Other
Execution 53ms
Transfer 18 KB
Monthly Cost €0/mo
Image Optimization81 images, 1546 KB total, 577 KB wastedINFO
Image Optimization
81 images, 1546 KB total, 577 KB wasted
Image Optimization Audit
Total Images
81
Total Size
1546 KB
Oversized
9
Wasted
577 KB
2 missing alt text 18 missing dimensions 17 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.