TXT is a DNS record, which contains info in human-readable form for external sources to gain information about a particular domain or subdomain. In the most common case, this kind of record is employed to prove that you own a domain name in case you're trying to add it to an online search engine or to some website traffic analytics platform. Considering that only the Internet domain owner/administrator is able to add custom DNS records, the TXT record serves as a verification 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, which ensures that an e-mail address isn’t spoofed and that people will not receive unsolicited mail from allegedly your mailbox. The TXT record contains information about the mail server where your online messages come from and functions as verification that it's a dependable one. Since there are no restrictions regarding the content of this kind of a record, you can include any other info also.