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 popular use of a TXT record is to add your site to an Internet search engine or to an analytics platform, that offers info about the web traffic to your website. Setting up this sort of a record functions as confirmation that you're the domain name owner and they'll provide the content you need to include as the value when you create the record. Another purpose of a TXT record is to verify that an email message is sent by the domain name owner and from a trusted web server - this is the so-called SPF security, which prevents any electronic address set up under your domain to be forged and unauthorized people to send out junk e-mail making it look like it was sent from your own mailbox. You can include any other info which you want to be associated with your domain address in a TXT record as well.