A TXT record is text in free, human-readable form, that's associated with a domain as a DNS record for one purpose or other. The most typical use of a TXT record is to add your site to a search engine or to an analytics platform, which provides info about the targeted traffic to your web site. Setting up this type of a record functions as proof that you are the domain name owner and they will provide the content that you need to include as the value when you set up the record. Another purpose of a TXT record is to verify that an email message is sent by the domain address owner and from a trusted web server - this is the so-called SPF security, that prevents any electronic address set up under your domain name to be forged and unauthorized people to send junk mail making it look like it was mailed from your own mailbox. You could include any other info that you would like to be associated with your domain in a TXT record as well.