A TXT record is text in free, human-readable form, which 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 provides info about the traffic to your site. Setting up this type of a record functions as proof that you are the domain owner and they will provide the content that you ought to include as the value when you set up the record. Another use of a TXT record is to validate that an e-mail message is sent by the Internet domain owner and from a trusted web server - this is the so-called SPF security, that prevents any electronic address created under your domain name to be forged and unauthorized people to send out spam making it look like it was sent from your own mailbox. You may include any other info that you'd like to be associated with your Internet domain in a TXT record as well.