A TXT record is text in free, human-readable form, that's associated with an Internet domain as a DNS record for one purpose or another. The most frequent use of a TXT record is to add your site to an Internet search engine or to an analytics platform, that provides info about the web traffic to your site. Setting up such a record works 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 purpose of a TXT record is to validate that an e-mail message is sent by the Internet domain owner and from a reliable web server - this is the so-called SPF security, which prevents any electronic address created under your domain to be forged and unauthorized individuals to send out junk e-mail making it appear like it was mailed from your own mailbox. You could add any other information you want to be associated with your Internet domain in a TXT record as well.