Look up the DNS records of any domain: IP addresses (A/AAAA), mail servers (MX), name servers (NS), TXT and CNAME entries — all in one query.
DNS answers are cached for their TTL — until it expires, resolvers keep serving the old value.
Free-form text used for verification and mail security: SPF, DKIM, domain ownership proofs.
A points a name at an IP address; CNAME points a name at another name.