Browsing sites served over HTTPS still requires querying a DNS server to figure out what IP address to connect to. Pi-hole acts as a DNS server and returns inva

Browsing sites served over HTTPS still requires querying a DNS server to figure out what IP address to connect to. Pi-hole acts as a DNS server and returns invalid results when asked for the IP of a blocked site. Ads are served from a separate domain from content, so they can be blocked without affecting the content.