TXT is a DNS record, containing info in human-readable form for external sources to gain information about a certain Internet domain or subdomain. In the most common scenario, this sort of record is used to prove that you own a domain name if you're trying to add it to a search engine or to some traffic analytics platform. Considering that only the domain address owner/administrator can add custom DNS records, the TXT record serves as a verification of ownership for the company 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 will not be spoofed and that individuals will not get spam from allegedly your mailbox. The TXT record includes information about the mail server where your electronic messages come from and serves as verification that it's a trusted one. Because there are no standards about the content of this sort of a record, you can add any other information also.