Yes, the OpenCart marketplace vendors can have a separate vendor domain/separate shop URl using the OpenCart Marketplace Vendor Sub Domain add-on. The extension will provide the functionality to have a separate vendor sub-domain for the OpenCart marketplace vendors . The separate vendor domain will work for – profile, category, compare, manufacturer, product, search, and the special pages. This means that the customer can access these pages via the vendor profile page under the seller sub-domain.
Example: shop(prefix)-webkul(shop name).seller.oc.webkul.com(domain name)/seller-profile