Having 100 % control over your domains is something really necessary and being able to access and edit the DNS records for any of them is one of the things you need to look for when you search for a registration or a web hosting provider. You may have heard about the so-called “name servers” that show where a domain address is hosted, but below them there is a whole set of records, like the A record, which is the IP address of the server hosting the site, and the MX records, which show the server that manages the emails for a particular domain address. These records are employed if you wish to have your site with one provider and the e-mails with another, for instance. You can also use a domain for a non-website service or forward the traffic to it by using special records. Some companies ask for an extra payment to provide access to edit particular DNS records besides the name servers.