Having complete control over your domain names is something quite necessary and to be able to access and edit the DNS records for every single one of them is among the things you should look for when you search for a registration or a website hosting provider. You might have heard of the so-called “name servers” that show where a domain is hosted, but below them there's a whole group of records, like the A record, which is the IP address of the server hosting the website, and the MX records, which show the server that manages the emails for a specific domain name. These records are used if you'd like to have your web site with one company and the emails with another, for example. You can also use a domain address for a non-website service or direct the traffic to it through special records. Some companies ask for an extra payment to grant access to edit certain DNS records apart from the name servers.