The brand domain is the part of a domain between the subdomain and the top-level domain. For example, in the URL www.website.com, website is the brand domain.
In HubSpot, a brand domain can be used to host unlimited subdomains and top-level domains. For example, if you're using the brand domain hubspot, you can connect www.hubspot.com, blog.hubspot.com, and www.hubspot.net. Learn more about the domain configuration supported for each account level.
Marketing HubEnterprise and CMS HubEnterprise users can purchase additional brand domains with the brand domain-add on.
Please note: brand domains are separate from your company branding settings, where you can set branding options such as your logo and favicon. .