Yes, you still need a Nuans report. Web domain searches determine whether a certain url is available or not. Many companies are active in Canada without a website. Moreover, domain name registration is under a different authority while business name registration is under Industry Canada and provincial corporate registries. Your business domain name can be different than your registered business name. Reserving a domain name, does not give any guarantee that such a business name will be approved by government. Therefore, ideally speaking, reserving a domain name is the next process after getting a business name approved. In our agency, you may order a Nuans report and domain together, so we can do these both works together to avoid miss-match of each of them.