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Edge Cache Invalidation Basics

Purge stale content fast

Keeping edge caches fresh uses short TTLs where needed, versioned/hashed asset URLs, and targeted purge APIs for changed content, while avoiding blanket purges that cause thundering herds.

Prefer Versioning

Use hashed filenames for assets; avoid purge on deploy.

Set TTLs

Shorter TTL for dynamic HTML; longer for static assets.

Purge Wisely

Use targeted purges for changed paths; avoid full wipes unless necessary.

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