If you have good knowledge of search engine optimization (SEO) then you can understand it is the most important for domain authority. The journey was started in 1997 when Google introduced the page rank apart from other search engines. Page rank is the number of links and quality of links to any particular page.
In 2000, when Google introduced a toolbar to explore the thing with ease then page rank was also displayed for every page and it is still part of Google’s overall algorithm. There are hundreds of different factors that are used by Google to determine the SEO ranking of any website. When Page rank disappeared, SEO professionals need any grade or score (ranging from 0-100) to show their results.
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