Top page authority is same like Page Authority. While making backlink for your website you need to consider Page authority also. It get more effect on our backlink. It make’s high quality Backlink. Page Authority (PA) is a score developed by Moz that predicts how well a specific page will rank on search engine result pages (SERP). Page Authority scores range from one to 100, with higher scores corresponding to a greater ability to rank. Page Authority is based on data from the web index and includes link counts, Rank, Trust, and dozens of other factors. So we consider all this factors while making high quality backlink.