A TXT record is text in free, human-readable form, that is associated with a domain as a DNS record for one purpose or another. The most frequent use of a TXT record is to add your site to a search engine or to an analytics platform, that offers info about the web traffic to your web site. Setting up this sort of a record may serve as confirmation that you are the domain owner and they'll provide the content that you need to include as the value when you create 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 reliable 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 out junk e-mail making it appear like it was sent from your own mailbox. You could include any other information which you want to be associated with your domain in a TXT record as well.