Ghost is an open-source publishing platform for creators, publishers and businesses. It combines a website with a writing editor, themes, email newsletters, free and paid memberships, member management and analytics, plus integrations with third-party services for payments, email and more. Ghost can also be used as a headless CMS. You can self-host it, with Ubuntu LTS, Node.js, MySQL and NGINX as the officially supported stack, or use it as a managed service through Ghost(Pro).
Ghost is run by the Ghost Foundation, a non-profit organisation registered in Singapore which, according to its website, has no investors. The software is licensed under the MIT licence. There is therefore no commercial parent company in the US or the EU. Those who self-host decide where the data is located, for example in a European data centre. For Ghost(Pro), the location depends on the hosting Ghost chooses; the documentation does not name regions, so the data processing agreement and data location should be checked beforehand. Self-hosting gives European organisations the most control.