No, you cannot use matomo in your domain names. You may not use the Matomo trademark or any other mark associated with the Matomo offering in your domain name. (For example, “” is not allowed). Learn more about the Matomo trademark.

On the other hand you can use matomo in your page URLs paths so this for example is allowed:

Previous FAQ: Piwik PRO vs Matomo (Piwik PRO VS Piwik)