TXT is a DNS record, which contains information in human-readable form for external sources to get information about a particular domain or subdomain. In the most common scenario, this kind of record is employed to prove that you own a domain if you are trying to add it to an online search engine or to some web traffic analytics platform. Considering that only the Internet domain owner/administrator may add custom DNS records, the TXT record works as a verification of ownership for the corporation supplying the service. Another popular use for this type of records is the e-mail SPF (Sender Policy Framework) protection, which ensures that an e-mail address won't be spoofed and that people will not receive junk mail from allegedly your mailbox. The TXT record contains information about the mail server where your digital messages come from and functions as verification that it is a reliable one. Because there are no standards about the content of this type of a record, you could also include any other information as well.
