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.
1.92 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.44 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
266 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.004
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.83 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.
7.53 s
Page Load Progression
FPage Weight BudgetAction17.7 MB transferred, 183 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 ImpactAction91% third-party, 0 ms blockingFIX
FJS Execution CostAction4057ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 1522ms | 75ms | 0ms | 1st |
| https://moi-basics.com/ | 892ms | 167ms | 46ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-7YXFFBMS73 | 368ms | 295ms | 70ms | 3rd |
| https://moi-basics.com/cdn/shop/t/34/assets/vendor-scripts-v14.js | 317ms | 70ms | 10ms | 1st |
| https://cdn.shopify.com/extensions/01a016e9-47cb-76e1-b316-67e60df004e7/TMS-Prod-v-41f1f48-17-1/assets/customcssposition_market.min.js | 155ms | 107ms | 38ms | 3rd |
| https://moi-basics.com/cdn/shop/t/34/assets/theme.js?v=7651693481908912771715626079 | 151ms | 81ms | 10ms | 1st |
| https://moi-basics.com/cdn/s/trekkie.storefront.7bcd7bb8195e24c65a61d69d69eb32392ed0d53f.min.js | 142ms | 133ms | 8ms | 1st |
| https://moi-basics.com/cdn/shopifycloud/perf-kit/shopify-perf-kit-3.8.3.min.js | 109ms | 84ms | 5ms | 1st |
| https://moi-basics.com/cdn/shopifycloud/shop-js/modules/v2/chunk.index_BqoYK0tS.esm.js | 108ms | 58ms | 0ms | 1st |
| https://moi-basics.com/cdn/wpm/b2d9dfbe8w1156b718pbb247b16m64115e31m.js | 105ms | 81ms | 21ms | 1st |
Showing top 10 of 13 scripts
DPage Weight InventoryAction183 resources · 17.7 MB · 199 KB savings availableFIX
~198.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 183 resources | 17.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization16 images, 0 KB saveableREVIEW
CJS BundlesAction122 scripts, 199 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-7YXFFBMS73 | 187 KB | 60 KB (32%) | ✓ | 3rd |
| https://moi-basics.com/cdn/wpm/b2d9dfbe8w1156b718pbb247b16m64115e31m.js | 71 KB | 38 KB (54%) | ✓ | 1st |
| https://cdn.shopify.com/extensions/01a016e9-47cb-76e1-b316-67e60df004e7/TMS-Prod-v-41f1f48-17-1/assets/customcssposition_market.min.js | 70 KB | 28 KB (42%) | ✓ | 3rd |
| https://moi-basics.com/cdn/shop/t/34/assets/theme.js?v=7651693481908912771715626079 | 35 KB | 25 KB (74%) | ✓ | 1st |
| https://moi-basics.com/cdn/shop/t/34/assets/vendor-scripts-v14.js | 37 KB | 24 KB (66%) | ✓ | 1st |
| https://cdn.shopify.com/extensions/01a016e9-47cb-76e1-b316-67e60df004e7/TMS-Prod-v-41f1f48-17-1/assets/tms-translator.min.js | 31 KB | 23 KB (75%) | ✓ | 3rd |
| https://moi-basics.com/cdn/shopifycloud/checkout-web/assets/c1/color-contrast-colorContrast.i0q83fmB.js | 2 KB | — | ✓ | 1st |
| https://moi-basics.com/cdn/shopifycloud/storefront/assets/shop_events_listener-4e26a9ce.js | 4 KB | — | ✓ | 1st |
| https://shop.app/checkouts/internal/preloads.js?locale=en-FR&shop_id=29187899436 | 0 KB | — | ✓ | 3rd |
| https://moi-basics.com/cdn/shopifycloud/storefront/assets/storefront/load_feature-1bd60354.js | 4 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
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading1 fonts (31 KB)PASS
Web fonts
1
31 KB total
Render-blocking
0
of 1
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
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 Observability15 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
ACSS Performance Depth1 CSS depth issue(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 Waterfall183 requests over 4103msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 368ms | 187 KB | 32% | €2/mo | Costly |
cdn.shopify.com cdn.shopify.com | Other | 155ms | 70 KB | 42% | €1/mo | Optional |
cdn.nfcube.com cdn.nfcube.com | Other | 59ms | 25 KB | — | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 55ms | 31 KB | 75% | €0/mo | Optional |
These scripts may cost more than they're worth
- Google Tag Manager adds 368ms and costs ~€2/month
Google Tag Manager takes 368ms 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
75% of cdn.shopify.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 (2026-07-21 — 2026-08-17)
LCP (p75)
943 ms
96% good
INP (p75)
87 ms
99% good
CLS (p75)
0.010
90% good
FCP (p75)
777 ms
TTFB (p75)
594 ms
Image Optimization28 images, 103 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
28
Total Size
103 KB