TXT is a DNS record, which contains data in human-readable form for external sources to get information regarding a specific domain name or subdomain. In the most common situation, this kind of record is used to prove that you own a domain name if you're trying to add it to an Internet search engine or to some traffic analytics platform. As only the domain name owner/administrator can add custom DNS records, the TXT record functions as a proof of ownership for the business offering the service. Another popular use for this type of records is the e-mail SPF (Sender Policy Framework) security, that helps to ensure that a particular email address won't be spoofed and that people will not get unsolicited mail from allegedly your mailbox. The TXT record includes details about the mail server where your electronic messages originate from and functions as validation that it's a trusted one. Because there are no rules regarding the content of such a record, you can add any other information as well.