What is Backlink

A link from an external page (with different website/webpage or top level domain or server, directory) that refers to your website are known as backlinks.
A backlink is a link coming from another website to your own. In search engine optimization a backlink is a hyperlink. Backlink, also known as  inward links, incoming links, inbound links (IBL), and inlinks.
Natural backlinks are more valuable to search engine optimization (SEO). Paid link is harmful for search engine optimization (SEO).
Back links are really the foundation of a website ranking well with the Different Search engine .

The number and quality of Natural backlinks help a web site or web page  to get first page any search engine like google, yahoo, bing etc.
Getting listed in Google, Yahoo, Bing and the other popular search engines are one of the most effective ways of directing free, targeted traffic to your website. It will be possible for The number and quality of Natural backlinks.