TXT is a DNS record, that contains data in human-readable form for external sources to obtain info about a specific domain or subdomain. In the most common case, this sort of record is employed to prove that you own a domain in case you're trying to add it to a search engine or to some web traffic analytics platform. Considering that just the Internet domain owner/administrator is able to add custom DNS records, the TXT record works as a proof of ownership for the business supplying the service. Another popular use for this type of records is the email SPF (Sender Policy Framework) protection, that makes sure that an email address isn’t spoofed and that individuals will not receive spam from allegedly your mailbox. The TXT record features details about the mail server where your digital messages come from and functions as proof that it's a reliable one. Since there are no regulations regarding the content of this sort of a record, you can include any other info as well.