TXT is a DNS record, which contains data in human-readable form for external sources to gain information about a particular domain name or subdomain. In the most common case, this sort of record is used to prove that you own a domain in case you are trying to add it to a search engine or to some website traffic analytics platform. Since only the domain name owner/administrator can add custom DNS records, the TXT record serves as a verification of ownership for the company offering the service. Another popular use for this sort of records is the e-mail SPF (Sender Policy Framework) protection, that makes sure that an email address shall not be spoofed and that individuals will not receive spam from allegedly your mailbox. The TXT record contains details about the mail server where your electronic messages arrive from and serves as proof that it is a dependable one. Because there are no regulations about the content of this sort of a record, you could add any other info also.