What is Domain Authority?

Domain authority is a way of predicting how well a website will rank on search engines. The official term and algorithmic score were invented by the good folks at Moz.

You can find your Domain Authority (DA) score through Moz’s Domain Analysis tool. Since Moz’s introduction of the DA score, many other domain authority scoring systems have come out. For example, Ahref’s Domain Rating and Majestic’s Trust Flow and Citation Flow.

While some of the criteria for calculating these scores differ from tool to tool, they all measure the same thing: a website domain’s SEO power.

Moz calculates DA by evaluating multiple factors including:

• linking root domains,
• number of total links,
• the strength of those links into a single DA score.

Based on these factors, Moz issues a score from 1-100.

A higher score means a stronger website that’s more likely to rank higher in the search engines. A lower score means a weaker website that will have trouble ranking for competitive keywords.