When the browser tries to load an ad, let's say from "ads.com", the DNS service responds to that domain with 0.0.0.0, which prevents the ad from loading. You en

When the browser tries to load an ad, let's say from "ads.com", the DNS service responds to that domain with 0.0.0.0, which prevents the ad from loading. You enable lists to customize which domains should be considered ad domains and can optionally blacklist other domains.