Don't know what page authority Checker? Well, it is simply a tool that is used to calculate the key website ranking and rating factors for just a single page or in other words just for a single URL of your website.

PA or Page Authority as it is popularly known as is a quality score of a single web page that predicts how well a specific page will rank on a SERP. Page authority is a terminology that was introduced by Moz, and a typical Page Authority score ranges from 1 to 100.

PA score is of valuable concern to most SEO experts and they are right about it. Most common SEO strategies such as quality content creation and link building are solely done with the purpose of improving page authority. Although the page authority score alone can’t guarantee search visibility; contextual relevance is also required with the query but it is indeed a key indicator of overall SEO performance.

A lot of webmasters are constantly trying to find an ideal or perfect page authority score. Truth is, there is no exact number for page authority. It all depends on the website's niche. In some niches, having a page authority score of 30 might be enough to rank on search engines' first page, while in very competitive niches, a PA score of 60 might not be sufficient.

A good way to know the ideal PA score in any niche is to write down the respective PA score of all the top ranking websites in that niche, that will give you a clear idea of what the ideal PA score should be, and you then work towards building your page authority score to compete favorably. Remember that the higher the page authority score the more is the capacity of a particular page to rank in search engine results, especially Google, Bing, and other top search engines.