TXT is a DNS record, that contains information in human-readable form for external sources to gain information about a certain domain name or subdomain. In the most common case, this kind of record is employed 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. As just the Internet domain owner/administrator can add custom DNS records, the TXT record serves as a proof of ownership for the company providing the service. Another popular use for this type of records is the e-mail SPF (Sender Policy Framework) protection, which helps to ensure that a particular email address isn’t spoofed and that others will not receive unsolicited mail from allegedly your mailbox. The TXT record contains details about the mail server where your electronic messages originate from and serves as validation that it's a trusted one. Since there are no standards about the content of this kind of a record, you can add any other info as well.