Performance
· 28 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.
7.36 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
20.42 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3.01 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
9.64 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.
24.44 s
Page Load Progression
FPage Weight BudgetAction5.0 MB transferred, 510 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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
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 CostAction13435ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.kingkerosin.com/cdn/wpm/b05c62d7ewbe538af9pdeb4fec1me339d55am.js | 2220ms | 1186ms | 23ms | 1st |
| Unattributable | 1873ms | 141ms | 0ms | 1st |
| https://www.kingkerosin.com/ | 1507ms | 503ms | 42ms | 1st |
| https://omnisnippet1.com/monitoring/monitoring.js?v=2026-10-19T20 | 1286ms | 492ms | 7ms | 3rd |
| https://cdn.shopify.com/extensions/01a15521-261e-799f-a4b6-b8af1fa5b544/judgeme-793/assets/common-JGp1I94z.js | 816ms | 737ms | 0ms | 3rd |
| https://cdn.shopify.com/extensions/01a15521-261e-799f-a4b6-b8af1fa5b544/judgeme-793/assets/loader.js | 788ms | 720ms | 1ms | 3rd |
| https://www.kingkerosin.com/cdn/shop/t/81/assets/main.js?v=111439315448393892961778623084 | 501ms | 45ms | 9ms | 1st |
| https://widget1-cdn.heyamplify.com/widget/dist/latest/pickystory-widget.min.js | 495ms | 387ms | 70ms | 3rd |
| https://www.kingkerosin.com/cdn/shopifycloud/storefront/assets/storefront/load_feature-1bd60354.js | 404ms | 373ms | 1ms | 1st |
| https://scripts.clarity.ms/0.8.72-beta/clarity.js | 391ms | 356ms | 8ms | 3rd |
Showing top 10 of 32 scripts
DJS BundlesAction337 scripts, 499 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=AW-11455159349&cx=c>m=4e6af0h1 | 164 KB | 116 KB (71%) | ✓ | 3rd |
| https://widget1-cdn.heyamplify.com/widget/dist/latest/pickystory-widget.min.js | 183 KB | 86 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-MY7YKPTLX9&cx=c>m=4e6af0h1 | 151 KB | 70 KB (46%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-11455159349&cx=c>m=4e6af0h1 | 164 KB | 68 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WPDKR5D9 | 154 KB | 64 KB (42%) | ✓ | 3rd |
| https://www.kingkerosin.com/cdn/wpm/b05c62d7ewbe538af9pdeb4fec1me339d55am.js | 83 KB | 41 KB (49%) | ✓ | 1st |
| https://omnisnippet1.com/forms/main.js?v=2026-10-19T20 | 46 KB | 31 KB (69%) | ✓ | 3rd |
| https://consent.cookiebot.com/uc.js?cbid=6ddf9ce8-3153-41de-bddb-e04b1d7e03ab&implementation=gtm&consentmode-dataredaction=dynamic | 37 KB | 24 KB (65%) | ✓ | 3rd |
| https://cdn.shopify.com/shopifycloud/shop-js/modules/v2/chunk.toast_CWbAqBdC.esm.js | 1 KB | — | ✓ | 3rd |
| https://www.kingkerosin.com/cdn/shopifycloud/perf-kit/shopify-perf-kit-3.11.0.min.js | 27 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
FPage Weight InventoryAction510 resources · 5.0 MB · 499 KB savings availableFIX
~499.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 510 resources | 5.0 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BThird-Party Impact42% third-party, 0 ms blockingREVIEW
BImage Optimization34 images, 0 KB saveableREVIEW
CDocument CompressionActionDocument response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BCSS Performance Depth2 CSS depth 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
A+Font Loading10 fonts (241 KB)PASS
Web fonts
10
241 KB total
Render-blocking
0
of 10
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- 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)
Fixing the unchecked items could save ~1 KB and ~2 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints207 hints, 0 missing preconnectsPASS
Current Resource Hints
207 resource hints configured
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
AAsset Compression1 of 4 asset hosts still on gzipPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 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 Waterfall510 requests over 6894msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
omnisnippet1.com omnisnippet1.com | Other | 1286ms | 31 KB | — | €7/mo | Costly |
cdn.shopify.com cdn.shopify.com | Other | 816ms | 3 KB | — | €4/mo | Costly |
cdn.shopify.com cdn.shopify.com | Other | 788ms | 3 KB | — | €4/mo | Costly |
widget1-cdn.heyamplify.com widget1-cdn.heyamplify.com | Other | 495ms | 183 KB | 47% | €3/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 391ms | 26 KB | — | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 352ms | 164 KB | 41% | €2/mo | Costly |
cdn.shopify.com cdn.shopify.com | Other | 305ms | 1 KB | — | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 299ms | 154 KB | 42% | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 251ms | 151 KB | 46% | €1/mo | Costly |
cdn.shopify.com cdn.shopify.com | Other | 192ms | 10 KB | — | €1/mo | Optional |
js.smile.io js.smile.io | Other | 170ms | 4 KB | — | €1/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 142ms | 0 KB | — | €1/mo | Optional |
cdnjs cdnjs.cloudflare.com | CDN | 135ms | 34 KB | — | €1/mo | Optional |
cdn.nfcube.com cdn.nfcube.com | Other | 121ms | 30 KB | — | €1/mo | Optional |
consent.cookiebot.com consent.cookiebot.com | Other | 112ms | 37 KB | 65% | €1/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 91ms | 14 KB | — | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 85ms | 2 KB | — | €0/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 77ms | 164 KB | 71% | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 76ms | 30 KB | — | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 70ms | 1 KB | — | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 65ms | 0 KB | — | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 54ms | 8 KB | — | €0/mo | Optional |
These scripts may cost more than they're worth
- omnisnippet1.com adds 1286ms and costs ~€7/month
- cdn.shopify.com adds 816ms and costs ~€4/month
- cdn.shopify.com adds 788ms and costs ~€4/month
- widget1-cdn.heyamplify.com adds 495ms and costs ~€3/month
- Microsoft Clarity adds 391ms and costs ~€2/month
- Google Tag Manager adds 352ms and costs ~€2/month
- cdn.shopify.com adds 305ms and costs ~€2/month
- Google Tag Manager adds 299ms and costs ~€2/month
- Google Tag Manager adds 251ms and costs ~€1/month
47% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
omnisnippet1.com takes 1286ms 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
cdn.shopify.com takes 816ms 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
cdn.shopify.com takes 788ms 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
widget1-cdn.heyamplify.com takes 495ms 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
Microsoft Clarity takes 391ms 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 352ms 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
cdn.shopify.com takes 305ms 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 299ms 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 251ms 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
65% of consent.cookiebot.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
71% of Google Tag Manager'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 (2026-09-20 — 2026-10-17)
LCP (p75)
1780 ms
88% good
INP (p75)
123 ms
89% good
CLS (p75)
0.070
81% good
FCP (p75)
1381 ms
TTFB (p75)
730 ms
Image Optimization200 images, 719 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
200
Total Size
719 KB