It looks like it's just a set of rules for major sites rather than some heuristic applied to all sites. But since it's open source, contributing rules for more

It looks like it's just a set of rules for major sites rather than some heuristic applied to all sites. But since it's open source, contributing rules for more obscure sites should be easy. Source here: https://github.com/typpo/ad-detector/blob/master/src/rules.js https://github.com/typpo/ad-detector/blob/master/src/rules.j...