What is DNS?
DNS (Domain Name System) translates human-readable domain names (like example.com) into IP addresses that computers use to identify each other on the network. DNS records contain various types of information about a domain.
DNS Record Types Explained
A records map a domain to an IPv4 address. AAAA records do the same for IPv6. CNAME records create aliases pointing to other domains. MX records specify mail servers. TXT records hold arbitrary text, often used for domain verification and email authentication (SPF, DKIM, DMARC). NS records identify authoritative name servers.
How This Tool Works
This tool uses DNS-over-HTTPS (DoH) to query public DNS resolvers from Cloudflare (1.1.1.1) or Google (8.8.8.8) directly from your browser. No data is sent to our servers. The queries use the standard RFC 8484 JSON API format.