PageRank: Google’s patented system for specifying a web page’s importance, PageRank (PR) is a single, albeit important, factor that influences ranking. Many people confuse a page’s rank (what position they are on a search results page) with a page’s PageRank (PR) value. They are totally separate.
Keywords: Keywords for those words and phrases that define what a web page is all about. When someone enters a search term or phrase into Google, Google tries to find those web pages that match the search phrase best. Some people confuse keywords with the META “Keywords” tag. They are not the same thing.
Page title: The title of a web page is the text contained between the
On-page factors: SEO factors influencing rank that are associated with elements on YOUR website, such as content, title tags, navigation links and code.
Off-page factors: SEO factors influencing rank that are associated with elements on OTHER websites, primarily links that point to your website.