New websites always begin with a DA score of 1. As a website gains high-quality backlinks to it over time, this score will gradually increase. Keep in mind that because it’s figured on a logarithmic scale, it’s much easier to get to 10 than it is to 20, and so on. In order to track your progress, you’ll want to check domain authority history and use a domain rating checker periodically to check and log your current score.
Domain authority is a predictive metric. It should be used to compare competing websites or tracking the ranking of a certain site over time. It’s not an absolute metric. Also, while DA is not an official metric used by Google itself, it is recognized as a benchmark that other SEO tools refer to all the time.
In short, your domain authority ranking will tell you where you are in relation to competitors. Tracking it frequently will help you learn how much you are improving or of your score drops. To search for your domain authority score, use a domain checker, such as Moz Link Explorer. Improve your score by gaining quality backlinks from reputable sources.