A TXT record is text in free, human-readable form, that's associated with a domain address as a DNS record for one purpose or another. The most widespread use of a TXT record is to add your web site to a search engine or to an analytics platform, which provides information about the traffic to your site. Setting up such a record may serve as confirmation that you're the domain address owner and they'll provide the content that you should include as the value when you set up the record. Another purpose of a TXT record is to validate that an e-mail message is sent by the domain name owner and from a trusted hosting server - this is the so-called SPF protection, that prevents any electronic address created under your domain name to be forged and unauthorized individuals to send spam making it look like it was mailed from your own mailbox. You could add any other information that you'd like to be associated with your domain address in a TXT record as well.