Images

Checks for images returning 404 errors

Checks for proper use of figure and figcaption elements

Validates image alt attributes

Checks for width/height attributes (prevents CLS)

Flags images whose width/height attributes conflict with their CSS box aspect ratio

Checks for image files that exceed recommended size limits

Checks for descriptive image filenames

Checks for image optimization indicators

Checks for large inline SVGs bloating HTML

Checks for lazy loading on below-fold images

Checks for modern image formats like WebP or AVIF

Checks if offscreen images use lazy loading

Validates <picture> elements have required <img> fallback

Checks if images are sized appropriately for their display size

Checks for responsive images with srcset attribute