DNS Record Types
- A - Maps domain to IPv4 address
- AAAA - Maps domain to IPv6 address
- MX - Mail server for the domain
- NS - Authoritative nameservers
- TXT - Text records (SPF, DKIM, etc.)
- CNAME - Canonical name (alias)
- SOA - Start of authority record
How DNS Works
DNS (Domain Name System) translates human-readable domain names into IP addresses. When you visit a website, your browser queries DNS servers to find the IP address of the server hosting that domain. DNS records are cached at multiple levels (browser, OS, ISP) to speed up lookups.