# Domains and DNS *** You can use Glesys DNS with both existing domains and domains purchased through Glesys. Glesys DNS also has an API, allowing for automation of changes like IP addresses and other settings. For example, pfSense supports dynamic DNS with Glesys. ## Projects and domain names A domain is tied to a [project](/platform/control-panel/projects.md) in the Glesys Control panel. When you contact us, you must use an email address linked to a user who can manage the relevant project. This allows us to verify that you’re authorized to make the change.\ For the same reason, we’re usually only able to answer certain questions over the phone—we simply can’t verify your identity otherwise. ## Common terms and concepts ### Domain Owner If you need to request any information about a domain but don’t have access to the project (as described above), we must rely on the domain’s ownership details. The ownership details for a domain are provided at the time of registration. These details are entirely separate from the user who performs the registration. For example, it’s possible to register and manage a domain on behalf of a customer and enter their details instead. Ownership details are often available through the Whois system, although they may also be hidden. For .se domains, you can look up the holder and related ownership details [here](https://internetstiftelsen.se/sok-doman/). In other words, the person with access to the project where the domain is registered can administer the domain, but the actual owner is the one listed in the domain’s ownership details. If you need to administer a domain but have lost access to the project where it is hosted, you’ll need to prove that you are the domain’s actual owner. ### Registrar The registrar is the party that handles the administration of domains. They are the ones who have direct contact with the manager of the top-level domain (such as .se, .com, or .net). The registrar is responsible for ensuring that the domain is registered and renewed. ### Reseller A reseller is a company that registers domains through a registrar. Resellers themselves do not have direct contact with, for example, the .se registry. Becoming a registrar involves a great deal of administration, especially if you want to offer your customers many different top-level domains. For that reason, many companies that are not primarily focused on domain sales prefer to operate as resellers instead. ### Name servers Name servers (also called DNS servers) hold the information about a domain’s records. When a lookup is performed for a domain, the name servers determine the response. If a web address is entered into a browser, the name server decides which IP address the site will load from, and if an email is sent to the domain, it determines which mail servers the messages will be delivered to. ## Transferring a domain When talking about transferring a domain or making changes to it, this can refer to several different things. ### Transfer When you perform a transfer, the domain is moved from one registrar to another. For most top-level domains (such as .se and .com), a transfer is carried out by first requesting an auth code from the current registrar. This code is sometimes also called a transfer key, EPP code, or auth key. The code is then provided to the registrar you want to move to, who uses it to transfer the domain. Because this code is essentially a security credential, if it falls into the wrong hands, someone could take over the domain. It should therefore be handled with care. Please note that if you want to transfer a domain between organizations and projects in Glesys Cloud, please contact support at . ### Change of ownership When you carry out a change of ownership for a domain, you update the ownership details for the domain. This does not mean performing a transfer — it only updates the contact information for the domain. The practical steps for a change of ownership vary between different top-level domains. For .se domains, for example, a signed statement confirming the ownership change is required. You can [download the form here](https://glesys.se/kb/artikel/overlatelse-av-domannamn). If you sell a domain, both a change of ownership and a transfer of the domain from the seller’s account to the buyer’s account with the registrar or reseller controlling the domain are normally carried out. ### Name server change When you change the name servers (also called DNS servers) for a domain, you change which servers manage the domain’s DNS records. If you use our name servers, the records in Glesys Cloud apply to the domain. If you use example.com’s name servers, the settings in their name servers apply instead. Transfer, change of ownership, and name server change are three completely different things. You can change name servers without changing registrar or ownership details. It’s also possible to change the registrar without changing either ownership details or name servers. ## Who do I pay? When a domain is registered, it’s the registrar who charges for it. That cost is either billed directly to the customer or to a reseller, who in turn charges the domain owner. Some resellers or registrars may add extra fees—for example, a web hosting provider that resells domains may require you to have a hosting account with them to register and manage domains. We don’t charge anything extra for our DNS service—only registration, renewal, transfers, and changes of ownership may incur costs. ## How-tos and guides See our extensive [how-tos](/products/connectivity/domains-and-dns/how-tos.md) on how the DNS service works, how to register domains, and much more. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.glesys.com/products/connectivity/domains-and-dns.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. 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