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SEMrush Data & Metrics
What is Authority Score?

What is Authority Score? Question

Backlink Analytics on SEMrush uses Authority Score to measure the impact of a webpage or domain’s links.  Authority Score is our compound domain score that grades the overall quality of a website and tells you how impactful a backlink from a site can be for your SEO. The score is based on the following SEMrush data:

  • Backlink data including referring domains, follow and no follow links, and more
  • Organic search data including organic search traffic and keyword positions
  • Website traffic data (monthly visits)

You can also find Authority Score in the Bulk Backlinks Analysis when you expand the Authority Score drop-down. The dropdown will show you the Authority Score data and the number of backlinks, referring domains, monthly visits, and keywords.


You can use this domain score to understand how beneficial a backlink from a referring domain is to your website’s SEO, or how beneficial a new backlink would be from a domain that you are hoping to build a link from.

When looking in your Backlinks report, you will see that your backlinks are prioritized by their Page Authority Score (Page AS).

Authority Score is the most well-rounded score to use when evaluating domains on SEMrush. It indicates not only the amount or quality of backlinks but the strength and popularity of the domain.

How do you know if a score is good or not?

Generally speaking the higher the Authority Score of a domain, the more trusted it is. It is based on a scale of 1 to 100 so the closer the Authority Score is too 100 the better.

As the score increases, the impact of a link will increase. However, the impact of a link also strongly depends on your website’s niche.

For example, use these scores in the Backlinks Report or Bulk Backlink Analysis to compare the trust levels of multiple websites. By comparing these scores you can evaluate which domain’s link profile is strongest and will send the most link weight when linking to other sites.