Discover which DNS resolvers are handling your queries. Verify your DNS configuration is private and secure.
When you configure a DNS resolver (like ClearDNS, Quad9, or Cloudflare), you expect all your DNS queries to go through that resolver. A DNS leak occurs when some queries bypass your chosen resolver and go to your ISP's DNS instead — exposing your browsing activity.
Only your configured DNS resolver appears. Your queries are private.
Multiple resolvers from different providers appear. Some queries are leaking.