TXT is a DNS record, containing info in human-readable form for external sources to gain info about a certain domain or subdomain. In the most common scenario, such a record is employed to prove that you own a domain name if you're trying to add it to a search engine or to some site traffic analytics platform. Considering that just the domain address owner/administrator can add custom DNS records, the TXT record functions as a verification of ownership for the firm providing 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 get unsolicited mail from allegedly your mailbox. The TXT record contains information about the mail server where your electronic messages originate from and functions as validation that it's a dependable one. Because there are no standards concerning the content of this sort of a record, you could also include any other info also.