TXT is a DNS record, containing info in human-readable form for external sources to gain information regarding a specific domain name or subdomain. In the most common case, such a record is used to prove that you own a domain name in case you're trying to add it to an online search engine or to some site traffic analytics platform. Since just the domain owner/administrator may add custom DNS records, the TXT record works as a verification of ownership for the corporation providing 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 others will not receive spam from allegedly your mailbox. The TXT record includes info about the mail server where your online messages originate from and functions as verification that it's a trusted one. Since there are no restrictions concerning the content of such a record, you could also include any other information also.