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 common use of a TXT record is to add your web site to a search engine or to an analytics platform, which offers info about the traffic to your site. Creating this sort of a record serves as proof that you are the domain address owner and they'll supply the content that you should 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 address owner and from a reliable hosting server - this is the so-called SPF security, which helps prevent any electronic address set up under your domain to be forged and unauthorized individuals to send spam making it look like it was mailed from your own mailbox. You could include any other info which you want to be associated with your domain in a TXT record as well.