windowscentral[.]com/how-set-and-manage-realm-minecraft-windows-10-edition-beta
Realms are hosted by Mojang and are therefore quite a bit more secure than the third-party hosted sites you regularly find on Java Minecraft. The downside is you have to know at least one person paying for a Realm to play multiplayer. Want that one person with a Realm to be you? Here's how to set up and manage your own Realm in Minecraft: Windows 10 Edition Beta.