nslookup is a DNS queryA query where a computer asks DNS for information about a domain. More tool available on many systems. It can display various DNS recordsOne entry in DNS that says something about a domain or subdomain. More, including TXT recordsA DNS record for text data, often used for verification or service configuration. More. It is practical for a quick check, although digA command-line tool for querying DNS. More is often more comfortable for detailed work.
