Having complete control of your domain names is something rather necessary and to be able to access and edit the DNS records for each of them is among the things you should look for when you search for a registration or a shared website hosting provider. You might have heard of the so-called “name servers” that show where a domain name is hosted, but below them there's a whole group 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 manages the emails for a specific domain. These records are employed if you would like have your web site with one provider and the e-mails with another, for instance. You may also use a domain name for a non-website service or forward the traffic to it through special records. Some companies ask for an extra payment to provide access to edit specific DNS records besides the name servers.