DNS lookup
Look up MX, TXT, CNAME, A, AAAA, NS and SOA records for any domain.
What is a DNS record?
DNS turns a domain name into the addresses and settings that make websites and email work. An A record gives an IPv4 address, AAAA an IPv6 address, MX says which servers receive mail (lowest priority number first), TXT holds text such as SPF and verification codes, CNAME makes one name an alias of another, NS names the servers that answer for the domain and SOA holds its zone settings.
TTL is how many seconds other servers may remember an answer. After you change a record, old answers can linger until their TTL runs out.