TXT is a DNS record, which contains info in human-readable form for external sources to gain information regarding a certain Internet domain or subdomain. In the most common situation, this type of record is employed to prove that you own a domain name if you're trying to add it to a search engine or to some site traffic analytics platform. As only the domain address owner/administrator may add custom DNS records, the TXT record works as a verification of ownership for the business providing the service. Another popular use for this kind of records is the e-mail SPF (Sender Policy Framework) security, which helps to ensure that an email address isn’t spoofed and that others will not get unsolicited mail from allegedly your mailbox. The TXT record features information about the mail server where your online messages originate from and functions as verification that it's a trusted one. As there are no regulations regarding the content of such a record, you can add any other info also.