Enable DNS over TLS (DoT) in Windows 11 – Windows Blog by Brink

Enable DNS over TLS (DoT) in Windows 11

A DNS (Domain Name System) server is the service that makes it possible for you to open a web browser, type a domain name and load your favorite websites.

DNS over HTTPS (DoH) is a protocol for performing remote Domain Name System resolution via the HTTPS protocol. A goal of the method is to increase user privacy and security by preventing eavesdropping and manipulation of DNS data by man-in-the-middle attacks by using the HTTPS protocol to encrypt the data between the DoH client and the DoH-based DNS resolver. Windows 11 includes built-in support for DoH.

Starting with Windows 11 build 25158, DNS over TLS (DoT) testing is now available for Windows DNS client query protection. The setup requires some command line use and is recommended for advanced networking users.

DNS over TLS (DoT) is an alternative encrypted DNS protocol to DNS over HTTPS (DoH). Where DoH treats DNS traffic as one more HTTPS data stream over port 443, DoT dedicates port 853 to encrypted DNS traffic and runs directly over a TLS tunnel without HTTP layering underneath. This may result in a small performance improvement depending on the network environment at the cost of the flexibility HTTPS-based protocols can provide.

This tutorial will show you how to change your DNS Server address and enable DNS over TLS (DoT) in Windows 11.

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