Performance
· 15 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.
1.48 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.43 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
458 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.
3.52 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.
4.76 s
Page Load Progression
715 ms
1.4 s
2.1 s 2.9 s 3.6 s 4.3 s
5.0 s
5.7 sFPage Weight BudgetAction3.1 MB transferred, 138 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
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 ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction2902ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.disneyplus.com/assets/c30c137fc06b041b30e602d739e0249cb0012294a4a | 1777ms | 1617ms | 6ms | 3rd |
| https://www.disneyplus.com/en-br | 460ms | 88ms | 10ms | 3rd |
| Unattributable | 296ms | 7ms | 0ms | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/pages/_app-7d92ef7417292031.js | 270ms | 175ms | 95ms | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/pages/%5B%5B...path%5D%5D-54287ad88176bfb4.js | 98ms | 90ms | 0ms | 3rd |
DPage Weight InventoryAction138 resources · 3.1 MB · 49 KB savings availableFIX
~49.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 138 resources | 3.1 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
AImage Optimization63 images, 0 KB saveablePASS
A+Font Loading4 fonts (92 KB)PASS
Web fonts
4
92 KB total
Render-blocking
0
of 4
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+JS Bundles46 scripts, 49 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/main-0c8d13c805685c08.js | 45 KB | 25 KB (55%) | ✓ | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/main-0c8d13c805685c08.js | 0 KB | 25 KB (55%) | ✓ | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/pages/_app-7d92ef7417292031.js | 739 KB | — | ✓ | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/6181-a3e2473a0566de63.js | 0 KB | — | ✓ | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/1636-705fd7048e326cec.js | 0 KB | — | ✓ | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/4145-eb3a949b69eb4a79.js | 0 KB | — | ✓ | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/2876-b74828d2b8f63b4c.js | 0 KB | — | ✓ | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/6241-30a2f12bef8e4de4.js | 0 KB | — | ✓ | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/2866-c79fbab319a992e2.js | 0 KB | — | ✓ | 3rd |
| https://prod-static.disney-plus.net/us-east-1/disneyPlus/marketing-unified/_next/static/chunks/860-717e40c993a275d1.js | 0 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
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall138 requests over 3568msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.disneyplus.com www.disneyplus.com | Other | 1777ms | 63 KB | — | $24/mo | Costly |
www.disneyplus.com www.disneyplus.com | Other | 460ms | 122 KB | — | $6/mo | Costly |
Unattributable Unattributable | Other | 296ms | 0 KB | — | $4/mo | Costly |
prod-static.disney-plus.net prod-static.disney-plus.net | Other | 270ms | 739 KB | — | $4/mo | Costly |
prod-static.disney-plus.net prod-static.disney-plus.net | Other | 98ms | 3 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.disneyplus.com adds 1777ms and costs ~$24/month
- www.disneyplus.com adds 460ms and costs ~$6/month
- Unattributable adds 296ms and costs ~$4/month
- prod-static.disney-plus.net adds 270ms 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
www.disneyplus.com takes 1777ms 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.disneyplus.com takes 460ms 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 296ms 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
prod-static.disney-plus.net takes 270ms 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