Moz, a leading company in the field of SEO tools, has developed the Domain Authority as a metric value. It evaluates the credibility and strength of a website. This is done on a scale between 1 and 100. Simply put: The Domain Authority offers the possibility that a website appears in the search results of a search engine. A increase of Domain Authority indicates that the website is considered reliable and informative. This increases visibility in search results. To be found more easily in search results, you should also improve your domain authority.