Domain Language Vocabulary for SEO SaaS

We’ve already had confusions in the team, based on what we call things. I decided we need a vocabulary, and here is the first version.

Agency
An organization or company that provides SEO services to multiple clients using the platform.
Customer
The paying entity or organization that purchases the SaaS service, typically the SEO agency itself.
Client
The end business or website owner that the agency manages SEO for. Clients are the agency’s customers in a real-world sense.
User
An individual with login access to the SaaS platform. Users can be agency employees, clients, or other stakeholders depending on permissions.
Website
A website owned or operated by a client, managed by the agency on the SaaS platform.
Group of Websites (Portfolio)
A collection or set of websites that an agency manages together, often grouped by client, campaign, or category.
Account
The SaaS platform access tied to a specific agency or customer entity, including users, and managed websites.
Permission/Role
Defines the level of access or capabilities a user has within the platform (e.g., admin, editor).