Page Rank is an assessment and a subsequent value that is assigned to your page by Google, taking into account the factors it employs as per its complex algorithm. To get an idea of the page rank assigned to your page, you can check the external scoring page released by Google which rates web pages on a scale of 1-10. This external score, however, may be different from the internal page rank assigned by Google which happens to be a closely guarded secret. Page ranks are now being used by almost all major search engines and not just Google to effectively rate your page and its content.