Page Authority vs Domain Authority
DA measures the whole site; PA measures one URL. Inside a single website, PA varies a lot: the home page and popular resources have high PA, new posts start low. Comparing PA across your own pages shows where your link equity sits.
Practical uses
- Internal linking: link from high-PA pages to important pages that need a boost.
- Content audits: high-PA pages with outdated content are prime candidates for updating, since they already have links.
- Competitor analysis: if a competitor's ranking page has a much higher PA than yours, you probably need more links to that page, not just better text.
- Before deleting a page: if it has PA from backlinks, redirect it with a 301 instead of letting it 404.
Tips for accurate checks
Enter the exact canonical URL, including https and the correct www setting — example.com/page and www.example.com/page/ may be scored separately. Confirm the canonical with the Canonical URL Checker.
See the domain-level score with the Domain Authority Checker, or list a domain's top links with the Backlink Checker.
Frequently asked questions
What is a good Page Authority?
Compare it with the pages ranking for the same keyword. A PA close to or above theirs means links are not your main obstacle.
Why is my new page's PA low?
New pages have few or no backlinks yet. PA grows as other sites link to the page and as internal links point to it.
Does PA include internal links?
Moz focuses on external links, but internal links help Google discover and value the page.
Should I use the URL with or without www?
Use the exact canonical version of the URL, because different versions can have different scores.