# Cloudflare Cache Rules for Linear Void (per ADR-001)

## Recommended Cache Rules for media.example.com

1. **.ts segments (immutable)**
   - Expression: (http.host eq "media.example.com" and http.request.uri.path contains ".ts")
   - Cache status: Eligible for cache
   - Edge Cache TTL: 1 month (or `Cache-Control: public, max-age=31536000, immutable` from origin)
   - Cache Everything: Yes

2. **.m3u8 manifests (live)**
   - Expression: (http.host eq "media.example.com" and http.request.uri.path contains ".m3u8")
   - Cache status: Eligible for cache
   - Edge Cache TTL: 10 seconds
   - Cache-Control: public, max-age=10, must-revalidate

3. **Static assets**
   - Expression: (http.host eq "example.com" and http.request.uri.path contains ".js" or http.request.uri.path contains ".css")
   - Edge Cache TTL: 1 year (with hash in filename for immutable caching)

**Tiered Cache**: Enable Smart Tiered Cache for R2 custom domain to reduce origin requests.

**WAF**: Enable basic rate limiting and bot management for /ws and admin routes.

These rules ensure high cache hit ratio for .ts segments while keeping live manifests fresh. Monitor cache hit ratio in Cloudflare analytics.