TXT is a DNS record, that contains information in human-readable form for external sources to gain information regarding a certain domain or subdomain. In the most common situation, this kind of record is employed to prove that you own a domain in case you're trying to add it to an Internet search engine or to some web traffic analytics platform. Considering that just the Internet domain owner/administrator may add custom DNS records, the TXT record serves as a verification of ownership for the company supplying the service. Another popular use for this sort of records is the email SPF (Sender Policy Framework) protection, that makes sure that an email address isn’t spoofed and that individuals will not get junk e-mail from allegedly your mailbox. The TXT record includes details about the mail server where your online messages come from and functions as verification that it's a trusted one. Since there are no restrictions concerning the content of this sort of a record, you can add any other info as well.
