Google PageRank (Google PR) is one of the methods Google uses to determine a page's relevance or importance.Important pages receive a higher PageRank and are more likely to appear at the top of the search results.Google PageRank (PR) is a measure from 0 -10.Google Pagerank is based on backlinks. The more quality backlinks the higher google pagerank. Improving your Google page rank (building quality backlinks) is very important if you want to improve your search engine rankings.