I always say, to create quality content and move in the social media to reach the maximum number of people. In this way people will start to link to our website. Another web link is as if we were recommending, and the more "recommendations" more authority. Of course, the more DA have websites that link us, the greater the authority to win , whereas if only tiny links authority sites our position could be adversely affected. Here you can use bulk domain authority checker The fastest and most accurate tool to check Moz domain and page authority.