DoH / DoT(DNS over HTTPS / DNS over TLS)
Encrypting DNS queries so they can't be read or tampered with by your network or ISP.
Pi-hole and AdGuard Home can forward queries upstream over DoH/DoT for privacy, while still filtering ads locally. This keeps your browsing history away from your ISP without giving up network-wide blocking.
Related articles
DNS(Domain Name System)
The system that translates human-readable names like example.com into the IP addresses computers use.
TLS/SSL
The encryption that secures connections, shown as the padlock and https:// in your browser.