Enable browser caching

Proper caching eliminates redundant downloads on repeat visits—returning users see near-instant page loads when assets are served from browser cache.

Quick Reference

• Use immutable caching for hashed assets (1 year max-age)
• Use short cache + revalidation for HTML pages
• ETags enable efficient cache validation
• stale-while-revalidate improves perceived performance

Check

Verify that proper cache headers are set for static resources to enable browser caching.

Fix

Configure appropriate Cache-Control and ETag headers for different resource types.