I knowledge there is a lot of dns filter available on the internet. I use a lot of them in my pihole system, next dns, and adblocker .But in some way i found that they don't contain a lot of domains. Maybe they are not tracking or ad but i found that if you block them there is no effect. So I'm making a list of them. So do you have your own list? That one i made is too strict most Google services don't work without them but I'm good without it. So i want to know if you known about any of these unnecessary domains. If you known please share for everyone.