TXT is a DNS record, containing data in human-readable form for external sources to obtain info about a particular domain or subdomain. In the most common case, this type of record is employed to prove that you own a domain name in case you are trying to add it to an online search engine or to some traffic analytics platform. Considering that only the domain address owner/administrator is able to add custom DNS records, the TXT record functions as a proof of ownership for the business offering the service. Another popular use for this kind of records is the email SPF (Sender Policy Framework) security, which ensures that an email address shall not be spoofed and that people will not receive unsolicited mail from allegedly your mailbox. The TXT record contains details about the mail server where your online messages come from and serves as confirmation that it's a dependable one. Since there are no rules concerning the content of this sort of a record, you can add any other info also.