PA is Page authority, another MOZ metric
What is page authority? Simply put, it is a score that can predict how well a specific page will perform on the search engine result pages (SERPs). The score ranges from 1 to 100, with 100 being perfect.
Page authority is scored using logarithms to rank each page. Improving your score significantly can be easy or difficult depending on your starting point. If your score is low, in the 20s, it will be easier to grow that to the 30s than it would be to grow a page from the 60s to 70s. Getting better results when you’ve hit greater than 75 on your score will be slow and difficult.
Page authority is a Moz-developed score that indicates how a given page will rank on search engine result pages (SERPs); it has a score range of 1 to 100, with a higher score increasing your ranking. On a 100-point logarithmic scale, Page Authority is computed. Anyone with a score between 20 and 80 can do better.
Many page authority checking tools are accessible on the internet in online marketing and SEO platforms, however, the most popular and reliable platform for evaluating page authority is Moz.
Focusing on the following elements can help you get a high Page authority score: