What are the three rules of domain?

The three rules of domain typically refer to the principles governing the use and management of domain names:

1. Uniqueness: Each domain name must be unique to avoid confusion and ensure that each website has a distinct online identity.
2. Stability: Domain names should be stable and consistent over time, allowing users to reliably access the associated content without frequent changes.
3. Relevance: Domain names should be relevant to the content or purpose of the website, aiding in searchability and user recognition.