TXT is a DNS record, that contains information in human-readable form for external sources to obtain information about a specific domain or subdomain. In the most common case, this kind of record is employed 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. Due to the fact that only the domain name owner/administrator can add custom DNS records, the TXT record serves as a verification of ownership for the corporation providing the service. Another popular use for this kind of records is the e-mail SPF (Sender Policy Framework) security, that makes sure that an e-mail address will not be spoofed and that individuals will not get junk mail from allegedly your mailbox. The TXT record includes information about the mail server where your online messages originate from and serves as proof that it's a reliable one. As there are no regulations about the content of this sort of a record, you could also include any other info also.