Origin & Host header
Set the origin server the Paradarum CDN pulls from on a cache miss, and control the upstream Host header — Auto (custom hostname), passthrough, or a fixed override.
Allowed origins
A complete reference of the host forms the Paradarum origin field accepts — hostnames, IPv4, IPv6, schemes, and ports.
Multi-origin failover
Add multiple origins to a Paradarum property with priority ordering, and let the edge fail over automatically when an origin errors or returns 5xx.
Origin Shield
Route cache misses through a central shield node to cut load on your origin, and choose which Paradarum shield each property uses.
Caching & query strings
Control browser cache TTL and how query strings affect the Paradarum cache key, set in a property's general settings.
Security headers
Enable HSTS, clickjacking protection, and MIME-sniffing protection on a Paradarum property through its general settings.
CORS
Allow other websites to read your Paradarum property's responses from the browser — any origin or an explicit list, with or without credentials.
Signed URLs
Protect content on a Paradarum property with expiring HMAC-signed URLs — for exact files or entire folders with pdm_path — and generate valid pdm_token links from bash, PHP or Node.
Image optimization
Automatically convert images to WebP and resize them on the fly with Paradarum's image optimization settings and transform query parameters.
Always Online
Serve stale cached content when your origin fails, and choose exactly which failure conditions trigger Always Online on a Paradarum property.