I am one of those that have a Pi-hole deployed in their home network. What's Pi-hole? It is a network-wide ad and tracker blocker, you could say that it is a "smart" DNS server. You basically configure it with a list of domains that it should block, configure all your devices to use it as a DNS server and that's it. Whenever there is a request to a domain, which is known to be used for ads or tracking, Pi-hole blocks it. For example, you will not be able to open ads on Google anymore, because whenever you would click on an ad, you would get an error. You could say that ads on Google can be hidden by ad-blocks - that's true. However imagine that there are services, applications, IoT devices that track you (send data about usage) without your knowledge, that's where Pi-hole really excels. Below you can see a list of top blocked domains in the last 24 hours in my home network. The first one,