In order to make self-hosting as accessible as possible, the YunoHost Project provides a *free* and *automatically configured* domain name service. By using this service, you won't have to [configure DNS records](/dns_config) yourself, which can be tedious and technical.
YunoHost allows the installation of applications on subdomains (for example, having the Nextcloud application accessible from the `cloud.mydomain.org` address), this feature is also allowed with the `nohost.me`, `noho.st` and `ynh.fr` domains and so it is possible to have a subdomain such as `my.application.mydomain.nohost.me`. to create a subdomain for `nohost.me`, `noho.st` and `ynh.fr` domain you just have to add the subdomain to yunohost like any other domains.
If you already did the postinstall and want to add an automatic domain, you may do so from the "Domains" web interface, selecting the option "I don't have a domain name..."
If you reinstall your server and want to use a domain already used previously, you must request a domain reset on the forum [in the dedicated thread](https://forum.yunohost.org/t/nohost-domain-recovery/442).