Everyone knows that being at the top of a search engine page is necessary to drive business to your website.  However, it can be tricky to know where you stand against competitors without searching for every possible keyword that your site ranks for.  That’s where domain authority comes in.  Domain authority is a ranking designed to score how knowledgeable your site is about a topic, and by extension, how well it will rank on a search engine. Domain authority scores are between one and 100 — the higher your website’s score, the greater its ability to rank.