DNS Lookup
A free tool that looks up a domain's DNS records (A, AAAA, MX, TXT, NS, CNAME). Check which IP, mail server, or nameserver a domain points to right in your browser with no install.
DNS record lookup
Looks up a domain's DNS records (A, AAAA, MX, TXT, NS, CNAME).
Enter a domain and press Look up.
Guide
What are DNS records
They define which IP (A, AAAA), mail server (MX), nameserver (NS), and so on a domain points to. The TTL on each result is how long (in seconds) that record is cached.
Record type
A is an IPv4 address, AAAA is an IPv6 address, MX is a mail server, TXT is text info (SPF, verification, etc.), NS is a nameserver, and CNAME points to an alias.