Performance
· 24 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.
593 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.24 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
326 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.033
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.21 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.
2.85 s
Page Load Progression
FPage Weight BudgetAction3.4 MB transferred, 333 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 CostAction2693ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 795ms | 114ms | 0ms | 1st |
| https://plymouthmeetingpa.clothesmentor.com/ | 737ms | 113ms | 12ms | 1st |
| https://connect.facebook.net/en_US/fbevents.js | 282ms | 205ms | 70ms | 3rd |
| https://plymouthmeetingpa.clothesmentor.com/cdn/wpm/b9f5e2762wb720532ap19708c42m93b2bec3m.js | 234ms | 168ms | 10ms | 1st |
| https://connect.facebook.net/signals/config/1117964164072024?v=2.9.419&r=stable&domain=plymouthmeetingpa.clothesmentor.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 | 131ms | 113ms | 18ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=GT-WRGD3BQV | 112ms | 89ms | 22ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7VWKVKCQ3K | 109ms | 91ms | 17ms | 3rd |
| https://plymouthmeetingpa.clothesmentor.com/cdn/s/trekkie.storefront.32ff6085714fe9c4d5859e332c5de5f8759a859e.min.js | 88ms | 79ms | 5ms | 1st |
| https://plymouthmeetingpa.clothesmentor.com/cdn/shopifycloud/perf-kit/shopify-perf-kit-3.11.0.min.js | 79ms | 71ms | 3ms | 1st |
| https://apis.google.com/_/scs/abc-static/_/js/k=gapi.lb.en.gh7qIZtzO5w.O/m=surveyoptin/rt=j/sv=1/d=1/ed=1/rs=AHpOoo84YKT1RVy0T6hcXi5rH3LooB1WCw/cb=gapi.loaded_0?le=scs,fedcm_migration_mod | 74ms | 42ms | 17ms | 3rd |
Showing top 10 of 11 scripts
DJS BundlesAction181 scripts, 430 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=GT-WRGD3BQV&cx=c>m=4e6ae1 | 153 KB | 116 KB (76%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=GT-WRGD3BQV | 153 KB | 69 KB (45%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7VWKVKCQ3K | 178 KB | 64 KB (36%) | ✓ | 3rd |
| https://apis.google.com/_/scs/abc-static/_/js/k=gapi.lb.en.gh7qIZtzO5w.O/m=surveyoptin/rt=j/sv=1/d=1/ed=1/rs=AHpOoo84YKT1RVy0T6hcXi5rH3LooB1WCw/cb=gapi.loaded_0?le=scs,fedcm_migration_mod | 66 KB | 46 KB (69%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 111 KB | 39 KB (35%) | ✓ | 3rd |
| https://plymouthmeetingpa.clothesmentor.com/cdn/wpm/b9f5e2762wb720532ap19708c42m93b2bec3m.js | 83 KB | 37 KB (45%) | ✓ | 1st |
| https://connect.facebook.net/signals/config/1117964164072024?v=2.9.419&r=stable&domain=plymouthmeetingpa.clothesmentor.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 | 103 KB | 32 KB (31%) | ✓ | 3rd |
| https://cdn.hextom.com/js/freeshippingbar.js?shop=clothes-mentor-plymouth-meeting-pa.myshopify.com | 58 KB | 27 KB (46%) | ✓ | 3rd |
| https://plymouthmeetingpa.clothesmentor.com/cdn/shopifycloud/checkout-web/assets/c1/a9fa9fda.CPgABguf.js | 1 KB | — | ✓ | 1st |
| https://cdn.shopify.com/shopifycloud/shop-js/modules/v2/chunk.storage_DQF5v-OM.esm.js | 0 KB | — | ✓ | 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
DPage Weight InventoryAction333 resources · 3.4 MB · 430 KB savings availableFIX
~429.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 333 resources | 3.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CDocument CompressionActionDocument response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
AThird-Party Impact28% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
AImage Optimization35 images, 0 KB saveablePASS
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
A+Font Loading3 fonts (92 KB)PASS
Web fonts
3
92 KB total
Render-blocking
0
of 3
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 HintsNo optimization neededPASS
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
AAsset Compression1 of 3 asset hosts still on gzipPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall333 requests over 8755msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Facebook Pixel connect.facebook.net | Advertising | 282ms | 111 KB | 35% | €2/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 131ms | 103 KB | 31% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 112ms | 153 KB | 45% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 109ms | 178 KB | 36% | €1/mo | Optional |
apis.google.com apis.google.com | Other | 74ms | 66 KB | 69% | €0/mo | Optional |
cdn.hextom.com cdn.hextom.com | Other | 50ms | 58 KB | 46% | €0/mo | Optional |
These scripts may cost more than they're worth
- Facebook Pixel adds 282ms and costs ~€2/month
Facebook Pixel takes 282ms 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
69% of apis.google.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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-19 — 2026-10-16)
LCP (p75)
1237 ms
95% good
INP (p75)
101 ms
96% good
CLS (p75)
0.070
97% good
FCP (p75)
878 ms
TTFB (p75)
458 ms
Image Optimization42 images, 323 KB total, 7 KB wastedINFO
Image Optimization Audit
Total Images
42
Total Size
323 KB
Oversized
1
Wasted
7 KB