What is DNS?

The Domain Name System (DNS) translates human-readable domain names like example.com into IP addresses that computers use to communicate. DNS records contain different types of information - from IP addresses (A, AAAA) to mail servers (MX) and verification strings (TXT).

How it works

When you look up a domain, DNS resolvers query authoritative nameservers to retrieve the requested record types. Each record type serves a different purpose - A records map to IPv4 addresses, CNAME records create aliases, MX records route email, and TXT records store arbitrary text like SPF policies or domain verification tokens.

How to use this tool

• Enter a domain name to look up its DNS records
• Select specific record types: A, AAAA, MX, CNAME, TXT, NS, SOA, SRV, CAA, or PTR
• View results with TTL values, priorities, and full record data

Common use cases

• Verifying DNS propagation after updating nameservers or records
• Debugging email delivery issues by checking MX and TXT (SPF/DKIM) records
• Confirming domain ownership via TXT verification records
• Checking CNAME and A records when setting up CDNs or hosting