TXT is a DNS record, that contains info in human-readable form for external sources to obtain information regarding a particular domain name or subdomain. In the most common scenario, this sort of record is employed to prove that you own a domain name if you're trying to add it to an online search engine or to some traffic analytics platform. Since only the domain address owner/administrator is able to add custom DNS records, the TXT record functions as a proof of ownership for the corporation supplying the service. Another popular use for this type of records is the email SPF (Sender Policy Framework) protection, that helps to ensure that a particular email address won't be spoofed and that people will not get junk mail from allegedly your mailbox. The TXT record includes details about the mail server where your online messages arrive from and functions as validation that it's a reliable one. As there are no restrictions regarding the content of this type of a record, you can include any other information also.