Page Authority
Page Authority is Moz’s score, from 1 to 100, that predicts how well one page will rank based on links to that page. It is on a logarithmic scale. It helps you compare pages inside Moz, not in Google.
By Théophile Louvart, founder of Porteur · Updated 14 September 2026 · Markdown
How to check it and the equivalents
Check PA in Moz. Domain Authority is the domain-wide version from Moz. For other indexes, look at Ahrefs’s URL Rating and Semrush’s page-level scores.
- Pick one tool and stick to it for comparisons.
- Compare pages on the same query: your /guides/getting-started vs three rivals’ guides.
- Read scores on a logarithmic scale. A move from 10 to 20 is easier than 30 to 40.
What moves the score on a page
Links pointing at the page. The index each tool has, and the quality of those links, drive the score.
- Earn a handful of relevant backlinks to the exact URL. A mention from a fit blog or directory helps more than ten random links.
- Add internal links from strong pages. Link to /pricing from /guides/pricing-strategy using the page’s topic in the anchor.
- Consolidate duplicates. Set a canonical to the primary URL so links roll up to one page.
- Fix broken linked URLs. If others link to /features, but you moved it, 301 to the new URL.
- Keep the page crawlable. If a tool cannot crawl it, it may miss links and under-score the page.
A healthy page after fixes: one canonical URL, live 200 status, linked from your top nav, and at least a few relevant external links.
Limits and traps
- Do not chase the number. Ship pages that match search intent first.
- Do not mix tools. A PA 25 is not the same as a UR 25.
- Do not confuse authority with speed. PageSpeed Insights measures performance, not links.
- Expect gaps. Tools miss links. A low score does not mean a page is weak in Google.
- Remember scope. Scores predict relative potential, not actual rankings or conversions.
Questions
Page Authority is Moz’s page-level score from 1 to 100 on a logarithmic scale. It predicts how well one page will rank based on links to that page. It works only inside Moz’s index, not Google.
Page Authority is for one URL. Domain Authority is the same idea across the whole domain. Both are Moz scores built from link data and both are for comparisons inside Moz.
No. These are third-party scores as of 2026. Google does not use or report them. They do not measure relevance or guarantee rankings.
There is no absolute good score. Use it relative to the pages you compete with on a query. If the top results are around 20, a 15 can compete with strong relevance and links.
Use Moz for Page Authority and Domain Authority, or the equivalents in Ahrefs and Semrush. Pick one tool and compare your pages with rivals on the same queries. Do not compare across tools.
Win a few relevant backlinks to the page and add internal links from strong pages. Consolidate duplicates with a canonical and fix any 404s so link signals are not split.
Check my site, free
Drop your homepage URL to get a free view in about thirty seconds of the pages and searches around it and three concrete findings from Porteur.
- Free check, no card
- Read-only, your own accounts
- Readable by your agent