Having 100 % control of your domain names is something rather crucial and to be able to access and edit the DNS records for each of them is one of the things you should look for when you search for a registration or a website hosting provider. Maybe you have heard of the so-called “name servers” that show where a domain address is hosted, but below them there is a whole set of records, for example the A record, which is the IP address of the server hosting the site, and the MX records, which show the server that deals with the e-mails for a certain domain name. These records are used if you'd like to have your web site with one provider and the e-mails with another, for example. Additionally you can use a domain address for a non-website service or forward the traffic to it through special records. Many companies ask for an additional fee to provide access to edit particular DNS records apart from the name servers.