TXT is a DNS record, that contains info in human-readable form for external sources to get information regarding a particular domain name or subdomain. In the most common situation, this sort of record is used to prove that you own a domain name if you're trying to add it to an online search engine or to some traffic analytics platform. Since only the Internet domain owner/administrator can add custom DNS records, the TXT record functions as a verification of ownership for the business supplying the service. Another popular use for this type of records is the email SPF (Sender Policy Framework) security, that makes sure that an e-mail address isn’t spoofed and that people will not receive junk mail from allegedly your mailbox. The TXT record includes info about the mail server where your online messages originate from and functions as confirmation that it is a reliable one. As there are no rules regarding the content of such a record, you could also include any other information as well.