Why Link Building is necessary for website?

Hi every one,Link building is necessary for website with respect to seo.social media optimizer try to place link by using of important business keywords.

And also your website content is more powerful for getting traffic.

Huge welcome here!!
Enjoy it and many blessings in your life.

Link building plays an important role in increasing traffic for your website. All submission in off page optimization helps gain back links.

What is the most effective way (white hat) to build links? 

Link building is the basis of all SEO campaigns and online marketers will include it into their online marketing strategies as it is the easiest and most cost effective way of earning online visibility.