TXT is a DNS record, that contains information in human-readable form for external sources to get information regarding a particular domain or subdomain. In the most common scenario, this sort of record is used to prove that you own a domain in case you're trying to add it to an Internet search engine or to some website traffic analytics platform. As just the Internet domain owner/administrator may add custom DNS records, the TXT record functions as a proof of ownership for the corporation providing the service. Another popular use for this kind of records is the e-mail SPF (Sender Policy Framework) protection, that helps to ensure that an email address won't be spoofed and that people will not receive junk e-mail from allegedly your mailbox. The TXT record features info about the mail server where your online messages originate from and serves as confirmation that it is a reliable one. As there are no rules about the content of this type of a record, you could add any other info as well.