Page Authority (PA) is a metric developed by Moz that predicts the likelihood of a specific page to rank on search engine result pages (SERPs). It is scored on a logarithmic scale from 1 to 100, with higher scores indicating a greater ability to rank. PA is calculated using a machine learning model and considers various factors, including link counts, MozRank, MozTrust, and other elements of the page’s link profile. Unlike Domain Authority (DA), which measures the predictive ranking strength of entire domains or subdomains, PA focuses on individual pages. It does not take into account specific on-page elements like keyword usage or content quality, but rather the overall link profile and other off-page factors. PA is used by SEO professionals to compare the strength of different pages and to track the ranking potential of a page over time. It is important to note that PA is a comparative metric and should be used alongside other SEO metrics to gain a comprehensive understanding of a page’s ranking potential.
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