TXT is a DNS record, that contains information in human-readable form for external sources to obtain information about a specific domain name or subdomain. In the most common scenario, this sort of record is employed to prove that you own a domain name in case you are trying to add it to an online search engine or to some traffic analytics platform. Since just the domain name owner/administrator is able to add custom DNS records, the TXT record functions as a proof of ownership for the firm 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 will not be spoofed and that individuals will not receive junk mail from allegedly your mailbox. The TXT record contains info about the mail server where your online messages come from and serves as proof that it is a reliable one. As there are no standards regarding the content of this type of a record, you could add any other info as well.