At Ahrefs we have a couple of quality metrics calculated according to our own algorithms: Ahrefs URL Rating (UR), Ahrefs Domain Rating (DR) and Ahrefs Rank (AR).

Ahrefs URL Rating (UR) shows the strength of a given URL’s backlink profile. Among all the SEO metrics, UR has the highest correlation with Google rankings.

Ahrefs Domain Rating (DR) shows the strength of a given website’s backlink profile. This metric is useful for link building purposes. As a general rule, backlinks from high-DR websites carry more "link juice".

Both UR and DR metrics are measured on a scale from 1 to 100, with higher scores having stronger ratings. Please note that the scale is logarithmic — meaning it's much easier to grow your page from UR 10 to UR 20 than from UR 80 to UR 90.

Ahrefs Rank (AR) is a list of all websites in our database ordered by the size and quality of their backlink profiles — basically, by their DR. Ahrefs Rank shows how strong a website’s backlink profile in comparison to other websites — with AR of 1 being the strongest.

You may read more on these and other Ahrefs metrics in our blog post.

 

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