Link Building is a technique to grow the popularity of a website & links. As per Google algorithm, Link building is an important ranking factor, which gives attention to the trustworthy & relevancy of a site. It should be made with quality, high ranking, popular, trustworthy, relevant websites, otherwise it will be considered a spammy website and that site will be penalized by the google.
Building a link is a return of investment in search engine optimization
, how linking has been done in search engines that will make rank higher or penalized.
Link building techniques:
1. Natural Link Building
2. Unnatural Link Building or Manual Link Building