TXT is a DNS record, which contains data in human-readable form for external sources to get info about a particular domain name or subdomain. In the most common case, this type of record is used to prove that you own a domain if you are trying to add it to an Internet search engine or to some web traffic analytics platform. As just the domain address owner/administrator is able to add custom DNS records, the TXT record works as a verification of ownership for the firm offering the service. Another popular use for this type of records is the email SPF (Sender Policy Framework) protection, that helps to ensure that an email address isn’t spoofed and that others will not receive junk mail from allegedly your mailbox. The TXT record includes information about the mail server where your online messages come from and serves as verification that it is a reliable one. Because there are no restrictions regarding the content of this sort of a record, you could add any other info also.