TXT is a DNS record, that contains data in human-readable form for external sources to obtain information about a particular Internet domain or subdomain. In the most common case, this sort of record is used to prove that you own a domain name in case you are trying to add it to an Internet search engine or to some web traffic analytics platform. Since only the domain owner/administrator may add custom DNS records, the TXT record serves as a proof of ownership for the business providing the service. Another popular use for this kind of records is the e-mail SPF (Sender Policy Framework) protection, that ensures that a particular email address won't be spoofed and that individuals will not receive unsolicited mail from allegedly your mailbox. The TXT record contains information about the mail server where your online messages originate from and functions as verification that it is a reliable one. Because there are no standards about the content of this kind of a record, you could also include any other info also.