If you are into SEO or just interested in the way how search engines work in general you are certain to have come across the “backlinks” term at least once. A backlink in general is a hyperlink on one website that leads to another website. The number and quality of backlinks is a nice indicator of website’s popularity on the web. Checking backlinks to a certain website allow you to see its main traffic sources and will help you to build a backlink strategy of your own. A nice free tool will kindly help you with exploring websites backlinks, rankings and general popularity on the Web.