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CDN Invalidation Basics
Clear cached content
CDN invalidation removes or refreshes cached objects using purge requests, cache keys, short TTLs, or asset versioning to control freshness.
- purge
- ttl
- cache key
- versioning
- cdn
Purge Smart
Purge changed objects or use paths/prefixes; avoid full wipes.
Version Assets
Use fingerprinted filenames for static assets to avoid purges.
Set TTLs
Balance freshness and performance with sensible TTLs and stale-while-revalidate.
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