Page Authority (PA) is the result that predicts the quality of a given page rank on search engine results pages (SERP). Page rank ranges from one to one hundred, with higher scores corresponding to greater ability to order in search engines.
The Page Authority relies on data from the web index and takes into account dozens of factors. Such as the domain Authority, it uses an automated learning model to identify the algorithm that are better linked to the classifications across thousands of SERPs that we predict, and then we produce the Page Authority points using this specific account.
How do I calculate my Page Authority?
The page reference is calculated on a scale of 100 points. The algorithm used to calculate page power is updated so you may see your scores fluctuate from time to time.
What is the benefit of having high Page Authority ?
Because of how the Page Authority is calculated, it is best to use it as a comparative measure when performing a search in the search results. Because it is a comparative tool, to have huge organically traffic and have high PPC form Google AdSense.
Domain Authority (DA) and Page Authority (PA):
While the page's validity limits the strength of the page rank, the domain measures the strengths of all domains or subdomains.
How can you measure The Authority?
Page power metrics are integrated into dozens of search engine optimization SEO and online marketing systems. You can measure Domain Authority using MozBar, or the free SEO toolbar for Moz.
use serpstat it will help you to check your backlinks and many things.
Definition of Page Authority:
"Page Authority" is calculated in the same way as the "Domain Authority" but at the individual page level. The data is based on data from the web index, including link numbers, and dozens of other factors. Most importantly, it does not take into account specific elements on the page such as keyword use or content optimization.