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Hi There, First of all, understand the fact that Domain Authority and Page authority are third party metrics developed by Moz. Secondly, the domain extension doesn't impact DA value, to get more knowledge about the factors that contribute to Domain authority of any website can be found here https://moz.com/learn/seo/domain-authority Third, and most important point, my own website has a domain authority if 1 till now, but since I focus on my target audience and work on tasks to engage them (to get desirable results), I have been successful in getting achieve my business goals. This means, by creating a good sized website with unique content, you have taken the right step in the direction of achieving your website business goals. Find new off-page  SEO (white-hat) methods to take it further and this would automatically lead to higher rankings, domain authority. The Moz tools are designed to help you achieve this and you can read it to understand how it can help. I hope this helps and please feel free to ask further questions by responding to this answer. Regards, Vijay