What Is Domain Authority In SEO?

Domain authority (DA) is a metric used to gauge the potential performance of websites on the search engine result pages (SERPs). This ranking system was developed by SEO giants, Moz, to measure the chances of a site ranking above its competitors in SERPs. 

Domain authority gained traction when Google stopped publishing Page Rank. It ranks websites on a scale of 1 to 100, with a higher score depicting a better chance of ranking. 

The score is calculated by evaluating multiple factors such as the total number of links, linking root domains, and more. For instance, authority websites like Wikipedia and Google have a strong DA score compared to small business websites, like bakeries and local shops.

DA score is logarithmic –  in other words, the higher your score becomes, the harder it is to improve. So it will be noticeably easier to increase your DA from 10 to 30, compared to improving from 60 to 70. 

Another thing to note is that your website’s domain authority can decrease from time to time even if you  haven’t lost any backlinks. This is because Moz can’t give a score higher than 100, so they lower the domain authority of other websites to create a balance.