Think of yourself as a team together with SEO company, so at your job them. Com domain name extension sounds more authority. See that the company prefers tools like Google keywords oral appliance Google webmaster tools to name a few. http://Adcllc.org/2016/06/29/new-site-test/2024/09/06/seven-things-to-look-for-in-a-search-engine-marketing-firm/