Performance & Load Readiness Audit

performance-load · v1.2.1 · paid

Core web performance assessment targeting load time and user experience, covering image optimization, bundle sizing, code splitting, caching, and rendering strategies.

Images & Media

images · weight 0.25

Images use modern formats (WebP, AVIF) or Next/Image component
ab-002053
high
Images specify width and height to prevent layout shift
ab-002054
high
Below-fold images use lazy loading
ab-002055
medium
Images use srcset or responsive image component for different screen sizes
ab-002056
low
Images are not significantly larger than their display size
ab-002057
low

Bundle & Loading

bundle · weight 0.3

No individual JS bundles exceed 250KB gzipped
ab-002058
critical
Route-based code splitting is configured
ab-002059
high
Build tool supports tree shaking (no barrel file issues)
ab-002060
low
No large unused dependencies in bundle
ab-002061
medium
Heavy libraries use dynamic imports (not loaded on every page)
ab-002062
low
Fonts use font-display: swap or optional, not block
ab-002063
medium
Third-party scripts are loaded asynchronously
ab-002064
medium

Rendering Strategy

rendering · weight 0.25

Rendering strategy matches content type (static pages use SSG, dynamic use SSR/ISR)
ab-002065
high
SEO-critical pages are not client-side rendered only
ab-002066
critical
Client hydration is not blocking above-the-fold content
ab-002067
low
Loading states are present for async content (skeletons, spinners)
ab-002068
low
No sequential API request waterfalls on page load
ab-002069
high

Caching & Headers

caching · weight 0.2

Static assets have appropriate Cache-Control headers
ab-002070
high
Static assets use content-hash filenames for cache busting
ab-002071
medium
API responses specify appropriate caching behavior
ab-002072
low
Gzip or Brotli compression is enabled for text assets
ab-002073
low
Preconnect/dns-prefetch hints for third-party origins
ab-002074
info