Cache lab

Setup guide

CDN → Domain [domain] → Page Rule → New

Suggested config

• short-ttl: URL /api/origin/cache/short-ttl*, cache_level query_string, cache_max_age 1m, origin_cache_control on
• immutable: URL /assets/immutable/*, cache_level uri, cache_max_age 30d (API max), cache_args off
• no-store: URL /api/origin/cache/no-store*, cache_level off

Verify

1. Request twice with the same URL (no cache-buster) — expect MISS then HIT
2. Check age + timing drop on the second request
3. no-store should never HIT

Origin routes

• /api/origin/cache/short-ttlCopy path
• /api/origin/cache/immutableCopy path
• /api/origin/cache/no-storeCopy path
• /api/origin/cache/vary-uaCopy path

All probes are same-origin through the CDN hostname. Open routes in a new tab to compare edge vs origin headers.