What is Backlink
A backlink for a given web resource is a link from some other website (the referrer) to that web resource (the referent). A web resource may be (for example) a website, web page, or web directory.
Search engines often use the number of backlinks that a website has as one of the most important factors for determining that website’s search engine ranking, popularity and importance. Google’s description of its PageRank system, for instance, notes that “Google interprets a link from page A to page B as a vote, by page A, for page B.”
Backlinks are incoming links to a webpage.
When a webpage links to any other page, it’s called a backlink. In the past, backlinks were the major metric for the ranking of a webpage. A page with a lot of backlinks tended to rank higher on all major search engines, including Google. This is still true to a large extent.
Here is a glossary of common terms related to backlinks that you should .
Example: Website A is a restaurant and it gets a backlink from Website B which is a prominent food review blog or website. This is a valuable, natural, and relevant backlink that Website A has gained.
Due to the importance of backlinks, there are lots of bad practices followed by website owners to gain backlinks. Some of these bad practices are: purchasing backlinks, link exchange networks, selling backlinks, etc. Most of these practices are not recommended by search engines. They usually deindex and penalize websites suspected of involvement in such practices.
Think of backlinks as conversations among websites.