What Is a DNS Resolver?
The component that turns the names you type into addresses, and the one thing that sees every site you visit by name. What it does, what it can and cannot see, and why which one you use matters.
DoH vs DoT vs DNSCrypt vs DoQ
A detailed comparison of the ways to encrypt DNS, DoH, DoT, DoH3, DoQ, and DNSCrypt: how each works, the trade-offs, and which to choose.
Does Your VPN Leak DNS?
A VPN encrypts your traffic, but your DNS lookups can take a different path. What a leak is, how to check for one, and how to read the result.
You Found a DNS Leak: How to Fix It
A leak is almost always one layer letting lookups out, an app or OS setting. How to pin the layer, fix it app-side or OS-side, and confirm it is closed.
How the DNS Leak Test Works
A plain-language look at how our DNS leak test measures which resolver actually handles your lookups, by watching where the query really comes out.