Cache Invalidation (Networking)
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Removing or updating stale content from CDN edge caches. Strategies include: purging specific URLs, using versioned URLs (style.v2.css), cache-control headers with appropriate max-age/s-maxage, and cache tags for grouped invalidation. “There are only two hard things in CS: cache invalidation and naming things.”
Key Properties
Related
- Edge Caching (cache invalidation keeps edges fresh)
- Cache-Control Header (HTTP-level cache directives)