Page Authority (PA) is a metric that predicts the likelihood of a webpage ranking well on search engine results pages. It's developed and used by Moz, a popular search engine optimization (SEO) software and service provider. Page Authority scores range from 0 to 100, with higher scores indicating a higher probability of ranking well on search engine results pages.
There are several online tools that can be used to check a webpage's Page Authority score, including Moz's own Link Explorer. To use the tool, simply enter the URL of the webpage you'd like to check, and the tool will provide you with a Page Authority score, as well as other related metrics like Domain Authority, the number of links pointing to the page, and more.
It's important to note that Page Authority is just one of many factors that search engines use to determine how to rank pages in their results. Other factors, such as the quality and relevance of the content on the page, the number and quality of other sites linking to it, and the relevance of the search query, are also important.
