Having complete control over your domains is something really important and to be able to access and edit the DNS records for every one of them is one of the things you have to look for when you search for a registration or a website hosting provider. Perhaps you have heard about the so-called “name servers” that show where a domain address is hosted, but below them you will find a whole set of records, such as the A record, which is the IP address of the server hosting the site, and the MX records, which show the server that handles the emails for a certain domain name. These records are used if you'd like to have your website with one company and the e-mails with another, as an illustration. You can also use a domain for a non-website service or direct the traffic to it through special records. A lot of companies ask for an extra fee to give access to edit certain DNS records other than the name servers.