Link building plays a vital role in SEO, as remaining 80% comes from link building. First it is important to know what the word "link building" means; link building is an effective process for increasing the popularity of your website among users. Now the next question arises, how to make your website popular among users. It can be achieved by increasing the web traffic to your website i.e. increasing the number of visitors to the website and also by improving the search engine ranking of your website.
As the word link popularity means that how many times your link has been visited by
different users, this shows the popularity of your link with search engines.