Finding out your websites Search Engine Optimization Score is critical to understanding where and more importantly HOW you rank for your desired keywords as compared to your competitors. One of the determining factors is your websites Domain authority or (DA). Domain Authority is a is a number, or score that is assigned to your site based on a 100-point scale. The higher the number, the more authoritative your site is and subsequently the higher your site will rank. Sites with higher DA scores get much better search results.