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.
304 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.48 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
231 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.
596 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
1.64 s
Page Load Progression
FPage Weight BudgetAction5.5 MB transferred, 62 requestsFIX
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
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
DThird-Party ImpactAction86% third-party, 0 ms blockingFIX
DPage Weight InventoryAction62 resources · 5.5 MB · 220 KB savings availableFIX
~219.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 62 resources | 5.5 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
no-cache, no-store, private, must-revalidate, max-age=0, max-stale=0, post-check=0, pre-check=0
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| private | — | Only browser cache, not CDN/proxy |
| must-revalidate | — | Must recheck with server after expiry |
| max-age | 0 | Cache for 0 seconds |
| max-stale | 0 | |
| post-check | 0 | |
| pre-check | 0 |
CImage OptimizationAction18 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CJS Execution CostAction1214ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://unstoppabledomains.com/_next/static/chunks/framework-cf242fd6ec8dbf98.js | 650ms | 597ms | 9ms | 1st |
| https://unstoppabledomains.com/_next/static/chunks/pages/_app-5e40611b98afa659.js | 211ms | 144ms | 66ms | 1st |
| Unattributable | 155ms | 4ms | 0ms | 3rd |
| https://unstoppabledomains.com/ | 130ms | 6ms | 0ms | 1st |
| https://unstoppabledomains.com/_next/static/chunks/47212-1ed911d65536534c.js | 68ms | 17ms | 1ms | 1st |
CJS BundlesAction32 scripts, 220 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://unstoppabledomains.com/_next/static/chunks/pages/_app-5e40611b98afa659.js | 480 KB | 195 KB (41%) | ✓ | 1st |
| https://unstoppabledomains.com/_next/static/chunks/20222-75f9ae21c94b2d9c.js | 33 KB | 24 KB (76%) | ✓ | 1st |
| https://unstoppabledomains.com/_next/static/JOsITwH_mtxhqhf6CyNvI/_buildManifest.js | 10 KB | — | ✓ | 1st |
| https://unstoppabledomains.com/_next/static/chunks/46578.bb558ac8a535d761.js | 4 KB | — | ✓ | 1st |
| https://unstoppabledomains.com/_next/static/chunks/67259.5ff173ad4db5f6f5.js | 3 KB | — | ✓ | 1st |
| https://unstoppabledomains.com/_next/static/chunks/45802.a06a821c4d95b33c.js | 3 KB | — | ✓ | 1st |
| https://unstoppabledomains.com/_next/static/chunks/43131.bab593261a0f683a.js | 5 KB | — | ✓ | 1st |
| https://unstoppabledomains.com/_next/static/chunks/50730.14b6580534bbe32a.js | 4 KB | — | ✓ | 1st |
| https://unstoppabledomains.com/_next/static/chunks/webpack-6d807b2f814d594e.js | 12 KB | — | ✓ | 1st |
| https://unstoppabledomains.com/_next/static/chunks/framework-cf242fd6ec8dbf98.js | 45 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
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 Loading2 fonts (46 KB)PASS
Web fonts
2
46 KB total
Render-blocking
0
of 2
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
Network Waterfall62 requests over 1517msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 155ms | 0 KB | — | $1/mo | Optional |