^(page|m)?ad[sx]?[0-9]*\. ^adim(age|g)s?[0-9]*\. ^adservers?[0-9]*\. ^adtrack(er|ing)?[0-9]*\. ^advert(s|ising|ise(rs?))?[0-9]*\. ^affiliates?[0-9]*\. ^beacons?[0-9]*\. ^pixels?[0-9]*\. ^s?analytics?[0-9]*\. ^s?metrics?[0-9]*\. ^telemetry[0-9]*\. ^track(srv|er|ing)?[0-9]*\. ^trc?k[0-9]*\.