TXT is a DNS record, containing info in human-readable form for external sources to gain information about a certain Internet domain or subdomain. In the most common scenario, this sort of record is used to prove that you own a domain name in case you are trying to add it to a search engine or to some website traffic analytics platform. As just the domain name owner/administrator is able to add custom DNS records, the TXT record works as a proof of ownership for the corporation supplying the service. Another popular use for this sort of records is the e-mail SPF (Sender Policy Framework) security, which makes sure that an email address won't be spoofed and that individuals will not get junk e-mail from allegedly your mailbox. The TXT record contains info about the mail server where your electronic messages originate from and serves as confirmation that it's a trusted one. Because there are no rules about the content of this sort of a record, you could add any other info as well.