Traffic
ASN
An ASN (Autonomous System Number) identifies the specific network operator that owns and routes a block of IP addresses — every IP on the internet belongs to exactly one ASN. Ad platforms' own review crawlers originate from their own published ASN — Google's AdsBot and Googlebot, for example, both run on AS15169 — and Cloaking X attributes reviewer traffic partly by matching a request's IP against these known ASNs, separately flagging IPs on known hosting/bot-infrastructure ASNs as a datacenter signal.