Performance
· 27 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.
1.78 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
14.05 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
5.64 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.127
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
8.12 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.
18.23 s
Page Load Progression
FPage Weight BudgetAction34.4 MB transferred, 226 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
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
DThird-Party ImpactAction94% third-party, 0 ms blockingFIX
FJS Execution CostAction14340ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://lovaco.com/cdn/shop/t/40/assets/theme-b5916edf.js | 5069ms | 385ms | 2ms | 1st |
| https://cdn.popt.in/pixel.js?id=76bd2f7031e8e&shop=lova-co.myshopify.com | 2707ms | 2654ms | 45ms | 3rd |
| Unattributable | 1964ms | 55ms | 0ms | 1st |
| https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js | 1424ms | 1408ms | 11ms | 3rd |
| https://lovaco.com/ | 948ms | 240ms | 26ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-98XSCVJ6R8 | 411ms | 323ms | 59ms | 3rd |
| https://lovaco.com/cdn/shop/t/40/assets/swiper-bundle.min.js?v=32172172898449040931660142502 | 356ms | 75ms | 58ms | 1st |
| https://universe-static.elfsightcdn.com/app-releases/button/stable/v1.13.2/c53146d9cd388912e65202af285e3c12c0b9ad1b/widget/button.js | 330ms | 254ms | 44ms | 3rd |
| https://lovaco.com/cdn/s/trekkie.storefront.f7140b8b25ae1195cf346a36a85e3e4bcf46adb3.min.js | 257ms | 228ms | 13ms | 1st |
| https://lovaco.com/cdn/wpm/b6aad4977wba422492pcfc93db9m5341e0bdm.js | 207ms | 159ms | 26ms | 1st |
Showing top 10 of 17 scripts
DJS BundlesAction123 scripts, 350 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.popt.in/pixel.js?id=76bd2f7031e8e&shop=lova-co.myshopify.com | 82 KB | 72 KB (89%) | ✓ | 3rd |
| https://lovaco.com/cdn/shop/t/40/assets/theme-b5916edf.js | 96 KB | 68 KB (71%) | ✓ | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-98XSCVJ6R8 | 158 KB | 63 KB (40%) | ✓ | 3rd |
| https://universe-static.elfsightcdn.com/app-releases/button/stable/v1.13.2/c53146d9cd388912e65202af285e3c12c0b9ad1b/widget/button.js | 121 KB | 56 KB (47%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 98 KB | 44 KB (45%) | ✓ | 3rd |
| https://lovaco.com/cdn/wpm/b6aad4977wba422492pcfc93db9m5341e0bdm.js | 64 KB | 27 KB (42%) | ✓ | 1st |
| https://lovaco.com/cdn/shop/t/40/assets/swiper-bundle.min.js?v=32172172898449040931660142502 | 36 KB | 20 KB (57%) | ✓ | 1st |
| https://inffuse.eventscalendar.co/plugins/shopify/loader.js?app=calendar&shop=lova-co.myshopify.com&shop=lova-co.myshopify.com | 2 KB | — | ✓ | 3rd |
| https://lovaco.com/cdn/shopifycloud/shop-js/modules/v2/chunk.window_BV7pwtSs.esm.js | 1 KB | — | ✓ | 1st |
| https://lovaco.com/cdn/shopifycloud/perf-kit/shopify-perf-kit-3.5.0.min.js | 21 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
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 InventoryAction226 resources · 34.4 MB · 350 KB savings availableFIX
~349.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 226 resources | 34.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
AImage Optimization34 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
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 (69 KB)PASS
Web fonts
3
69 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 Hints3 hints, 0 missing preconnectsPASS
Current Resource Hints
3 resource hints configured
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
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
Network Waterfall226 requests over 5960msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cdn.popt.in cdn.popt.in | Other | 2707ms | 82 KB | 89% | $16/mo | Costly |
cdnjs cdnjs.cloudflare.com | CDN | 1424ms | 27 KB | — | $8/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 411ms | 158 KB | 40% | $2/mo | Costly |
universe-static.elfsightcdn.com universe-static.elfsightcdn.com | Other | 330ms | 121 KB | 47% | $2/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 175ms | 98 KB | 45% | $1/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 122ms | 22 KB | — | $1/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 55ms | 3 KB | — | $0/mo | Optional |
These scripts may cost more than they're worth
- cdn.popt.in adds 2707ms and costs ~$16/month
- cdnjs adds 1424ms and costs ~$8/month
- Google Tag Manager adds 411ms and costs ~$2/month
- universe-static.elfsightcdn.com adds 330ms and costs ~$2/month
cdn.popt.in takes 2707ms 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
89% of cdn.popt.in'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
cdnjs takes 1424ms 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 411ms 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
universe-static.elfsightcdn.com takes 330ms 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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-04-28 — 2026-05-25)
LCP (p75)
2681 ms
71% good
INP (p75)
196 ms
75% good
CLS (p75)
0.370
60% good
FCP (p75)
1033 ms
TTFB (p75)
383 ms
Image Optimization30 images, 323 KB total, 1 KB wastedINFO
Image Optimization Audit
Total Images
30
Total Size
323 KB
Oversized
1
Wasted
1 KB