The 4 most reliable methods for determining your domain authority.

In the world of search engine optimization (SEO), the metric known as Domain Authority (DA) is used as a helpful heuristic. Simply put, it shows how likely a site is to rank for certain keywords in search engines based on the SEO authority it possesses. Numerous resources exist to assist us in calculating these meaningful metrics.

What is Domain Authority?

In the world of search engine optimization (SEO), Domain Authority (DA) is a helpful heuristic. Simply put, it shows how likely a site is to rank for specific keywords based on the authority it holds in search engine optimization. In order to calculate these helpful scores, we can use any number of available resources. However, there are a few alternative SEO tools that offer slightly different insights into a domain’s SEO health. The term “authority,” like the term “relevance,” encompasses a wide range of evaluations and is thus open to different interpretations. Domain Authority is an attempt to clarify this issue by providing a metric for comparing the relative SEO strength of various websites using a standard methodology. Marketers understand DA’s limitations as a metric, but it still serves as a gauge of whether or not our SEO initiatives are paying off. Therefore, it accomplishes a necessary function. Moz uses its own index of links to determine rankings, which is undoubtedly smaller than Google’s index of URLs. Companies that sell SEO tools, such as Majestic and Ahrefs, maintain their own databases of website addresses.

Moz (MozBar, Open Site Explorer) (MozBar, Open Site Explorer)

When comparing different tools for determining a site’s SEO strength, Moz stands out as the clear frontrunner. Even though we already included it on our list of the best Google Chrome extensions for SEO, MozBar is deserving of its own spot here. If a user has MozBar installed, the site’s Domain Authority and current page’s Page Authority (PA) will be highlighted as they browse. Similarly, to how DA applies the same principles across an entire domain, PA does the same thing for a single URL. When taken together, these two metrics provide a solid foundation for digging into the breadth and depth of a domain’s backlink ecosystem. As a result, we need to exercise caution when drawing conclusions about cause and effect based on DA scores.


For SEOs looking to gain insight into their site’s SEO performance, Ahrefs’ database of over 12 trillion links and information on 200 million root domains is an invaluable resource. Specifically, this article is concerned with two metrics: URL Rating (UR) and Domain Rating (DR) (DR). At the very least in terms of function, we can compare these two metrics from Ahrefs to what we know as Page Authority and Domain Authority. “a proprietary metric that shows the strength of a target website’s total backlink profile (in terms of its size and quality),” as defined by Ahrefs. Moz and Ahrefs both put a lot of resources into expanding and updating their link databases. There is a noticeable gap in the scores between them sometimes, and some SEOs clearly Favour one over the other.  


Because of the comprehensive nature of its backlink data, Majestic continues to be an integral part of any SEO toolkit, and it is marketed as “The planet’s largest link index database.” It provides marketers with two perspectives on their domain’s performance by offering two index options (Fresh and Historic). They are part of the Majestic Flow Metrics, a set of related metrics. These are extremely illuminating due to the instant score they provide (from 1 to 100) and the opportunities to delve deeper into the backlink data. Majestic’s ability to examine patterns of link acquisition and loss over time is a major selling point. This means that the insights provided by Majestic’s domain strength metrics can be used right away to adjust strategy. For instance, if you noticed a significant drop in links on a certain date, you could potentially recover some of that lost equity by contacting webmasters. An additional useful feature of Majestic is a browser extension that displays key domain metrics alongside the user’s current page. It would be difficult, if not pointless, to compare the efficacy of the domain authority rankings provided by Majestic, Moz, and Ahrefs by using an apples-to-apples metric.

In conclusion

Search marketers are looking to Domain Authority checker as a measure of their SEO potential because of the continued importance of backlinks and the potential of unlinked mentions to boost performance. The foundations of a winning customer-centric approach are the same as they’ve always been; improved rankings in whatever domain metrics you care to track should be seen as an inevitable byproduct of a strategy that meets the expectations of today’s consumers.