.notion Domain

The .notion domain extension is used for the services, platforms, and infrastructure that Notion runs worldwide. It is a closed namespace limited to Notion and its affiliates. That control matters because customers need a dependable way to tell real Notion services from phishing and impersonation. The applicant is Notion International Inc.

In practice, addresses under this extension are used only for work tied to Notion's business, such as providing, promoting, and supporting its services. Because Notion controls every address, users can verify that a site or service is genuine before they sign in. The extension also gives Notion one consistent place to apply security standards across its global network. For a company whose products reach people everywhere, that steady control is worth far more than the number of names registered.