What is DA and PA in SEO?

Domain Authority (DA) and Page Authority (PA) are metrics created by Moz. DA describes a domain; PA describes a specific page. They are comparative estimates, not measurements supplied by Google.

How should you use them?

Use the same provider and compare relevant sites competing for similar searches. A score can help you explore differences in link profiles, but it cannot tell you why a page ranks or whether a visitor will find it useful. There is no universal score that guarantees a result.

What a score cannot tell you

DA and PA are not Google ranking scores. A lower-scoring site can still have the more useful answer for a particular search. Check whether the page is indexed, whether it answers the query and whether the information and internal links are clear before deciding what to improve.

Do not buy links or disavow sites just to change a score. Google explains its approach to link spam and recommends the disavow tool only in limited circumstances.

Open PageRank is a different metric

Our homepage SEO review does not calculate Moz DA or PA. Use a provider with access to Moz data if you specifically need those scores. Our checking guide explains how to compare the right inputs.