Features
ASN URL Replacements
Route by originating AS number
ASN replacements route traffic by the client's originating Autonomous System Number. Useful when you need to target or exclude a specific network provider (e.g. mobile carriers, datacenters, VPN ASNs).
Lookups use MaxMind's GeoLite2-ASN database and share the same cache as geo lookups.
Example
AS7922 (Comcast) → https://comcast.cdn.example.com
AS16509 (AWS) → BLOCK
default → https://cdn.example.comPriority with traffic routes
Replacements share one ladder with Traffic Routes: ASN replacement, then route by network, then country replacement, then route by country, then default. A rule for a specific host beats a route at the same level; a route takes the hosts that have no rule of their own and beats a plain default.