Performance
· 17 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.
4.78 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
8.61 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
100 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.030
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.77 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.
8.72 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction4356ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/react-dom-Dm400Lyn.js | 1473ms | 1091ms | 1ms | 3rd |
| https://www.shopify.com/es-es | 1037ms | 17ms | 34ms | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/route-D9Qi_UOK.js | 921ms | 73ms | 1ms | 3rd |
| Unattributable | 803ms | 127ms | 0ms | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/dist-BmjNjq8V.js | 64ms | 54ms | 0ms | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/chunk-YCLX5KNT-DD19HmJz.js | 58ms | 50ms | 0ms | 3rd |
DPage Weight InventoryAction108 resources · 1.7 MB · 84 KB savings availableFIX
~84.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 108 resources | 1.7 MiB | ||||||
CPage Weight BudgetAction1.7 MB transferred, 108 requestsREVIEW
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
BImage Optimization38 images, 0 KB saveableREVIEW
BJS Bundles55 scripts, 84 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/utils-BdUxjvQA.js | 43 KB | 38 KB (88%) | ✓ | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/chunk-JZWAC4HX-CgPBot6T.js | 35 KB | 25 KB (71%) | ✓ | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/route-D9Qi_UOK.js | 72 KB | 22 KB (31%) | ✓ | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/entry.client-HVrhfgkt.js | 4 KB | — | ✓ | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/react-BRzFi5rc.js | 3 KB | — | ✓ | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/react-dom-Dm400Lyn.js | 40 KB | — | ✓ | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/jsx-runtime-qixoEAOq.js | 1 KB | — | ✓ | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/constants-D7srLZTo.js | 1 KB | — | ✓ | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/preload-helper-Bv82IuyZ.js | 1 KB | — | ✓ | 3rd |
| https://cdn.shopify.com/shopifycloud/world/brochure/production-homepage/assets/enums-Bnt8S1FI.js | 2 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
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (237 KB)PASS
Web fonts
6
237 KB total
Render-blocking
0
of 6
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 Hints8 hints, 0 missing preconnectsPASS
Current Resource Hints
8 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
AHTTP Cachingmax-age=3600 (1 hour)PASS
max-age=3600
| Directive | Value | Meaning |
|---|---|---|
| max-age | 3600 | Cache for 1 hour |
Network Waterfall108 requests over 2508msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cdn.shopify.com cdn.shopify.com | Other | 1473ms | 40 KB | — | €8/mo | Costly |
www.shopify.com www.shopify.com | Other | 1037ms | 89 KB | — | €5/mo | Costly |
cdn.shopify.com cdn.shopify.com | Other | 921ms | 72 KB | 31% | €5/mo | Costly |
Unattributable Unattributable | Other | 803ms | 0 KB | — | €4/mo | Costly |
cdn.shopify.com cdn.shopify.com | Other | 64ms | 9 KB | — | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 58ms | 18 KB | — | €0/mo | Optional |
These scripts may cost more than they're worth
- cdn.shopify.com adds 1473ms and costs ~€8/month
- www.shopify.com adds 1037ms and costs ~€5/month
- cdn.shopify.com adds 921ms and costs ~€5/month
- Unattributable adds 803ms and costs ~€4/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.
Learn more ▾ ▴
Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.
Source: web.dev
cdn.shopify.com takes 1473ms 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
www.shopify.com takes 1037ms 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 921ms 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
Unattributable takes 803ms 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