Performance
· 14 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.
922 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.81 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
274 ms
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.
1.02 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.
2.37 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DHTTP CachingActionno-store (uncacheable)FIX
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| max-age | 0 | Cache for 0 seconds |
| no-store | — | Never cache this response |
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
| post-check | 0 | |
| pre-check | 0 |
CPage Weight BudgetAction2.0 MB transferred, 146 requestsREVIEW
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
CJS Execution CostAction1277ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.adoredvintage.com/ | 463ms | 109ms | 10ms | 3rd |
| https://cdn.jsdelivr.net/npm/@thumbmarkjs/thumbmarkjs/dist/thumbmark.umd.js | 316ms | 294ms | 1ms | 3rd |
| Unattributable | 252ms | 23ms | 0ms | 3rd |
| https://www.adoredvintage.com/cdn/shopifycloud/storefront/assets/shop_events_listener-3da45d37.js | 77ms | 76ms | 0ms | 3rd |
| https://cdn.shopify.com/proxy/4b281c970a0a0eb3bdec73412f2042065a9d1db9e1d81df037a01fce6b09fa06/aca.appifycommerce.com/assets/js/adoredvintage.myshopify.com.js?timestamp=1751037969&shop=adoredvintage.myshopify.com&sp-cache-control=cHVibGljLCBtYXgtYWdlPTkwMA | 61ms | 33ms | 10ms | 3rd |
| https://s3-us-west-2.amazonaws.com/da-restock/da-restock.js?shop=adoredvintage.myshopify.com | 57ms | 48ms | 1ms | 3rd |
| https://cdn.shopify.com/extensions/aeb61bea-dfdd-41b5-9ccc-da025818f0a6/inbox-1260/assets/shopifyChatV1Widget.js | 50ms | 44ms | 1ms | 3rd |
CJS BundlesAction77 scripts, 240 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.shopify.com/extensions/aeb61bea-dfdd-41b5-9ccc-da025818f0a6/inbox-1260/assets/shopifyChatV1Widget.js | 265 KB | 134 KB (52%) | ✓ | 3rd |
| https://static.returngo.ai/master.returngo.ai/returngo.min.js?shop=adoredvintage.myshopify.com | 50 KB | 44 KB (89%) | ✓ | 3rd |
| https://www.adoredvintage.com/cdn/shop/t/41/assets/theme.js?v=180760137299885650971725377979 | 48 KB | 33 KB (69%) | ✓ | 3rd |
| https://www.adoredvintage.com/cdn/wpm/b0e8c7c7aw41bd75a1p837d7fd4m8b145375m.js | 61 KB | 30 KB (50%) | ✓ | 3rd |
| https://www.adoredvintage.com/checkouts/internal/preloads.js?locale=en-US | 3 KB | — | ✓ | 3rd |
| https://shop.app/checkouts/internal/preloads.js?locale=en-US&shop_id=14429764 | 1 KB | — | ✓ | 3rd |
| https://www.adoredvintage.com/cdn/shopifycloud/shop-js/modules/v2/loader.init-shop-cart-sync.en.esm.js | 1 KB | — | ✓ | 3rd |
| https://www.adoredvintage.com/cdn/shopifycloud/storefront/assets/storefront/load_feature-496de5fe.js | 4 KB | — | ✓ | 3rd |
| https://www.adoredvintage.com/cdn/shopifycloud/storefront/assets/shopify_pay/storefront-65b4c6d7.js?v=20250812 | 23 KB | — | ✓ | 3rd |
| https://cdn.shopify.com/extensions/019d6367-405c-7702-b633-cd2eae2e0aa6/securify-116/assets/visitor-blocker-v2.iife.js | 3 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
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization5 images, 0 KB saveablePASS
A+Font Loading7 fonts (188 KB)PASS
Web fonts
7
188 KB total
Render-blocking
0
of 7
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+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall146 requests over 0msINFO
Performance analysis not available for this result.
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.adoredvintage.com www.adoredvintage.com | Other | 463ms | 81 KB | — | €2/mo | Costly |
jsDelivr cdn.jsdelivr.net | CDN | 316ms | 12 KB | — | €2/mo | Costly |
Unattributable Unattributable | Other | 252ms | 0 KB | — | €1/mo | Costly |
www.adoredvintage.com www.adoredvintage.com | Other | 77ms | 4 KB | — | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 61ms | 68 KB | — | €0/mo | Optional |
s3-us-west-2.amazonaws.com s3-us-west-2.amazonaws.com | Other | 57ms | 23 KB | — | €0/mo | Optional |
cdn.shopify.com cdn.shopify.com | Other | 50ms | 265 KB | 52% | €0/mo | Optional |
These scripts may cost more than they're worth
- www.adoredvintage.com adds 463ms and costs ~€2/month
- jsDelivr adds 316ms and costs ~€2/month
- Unattributable adds 252ms and costs ~€1/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
www.adoredvintage.com takes 463ms 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
jsDelivr takes 316ms 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 252ms 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
52% 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