In the field of search engine optimization, link building describes actions aimed at increasing the number and quality of inbound links to a webpage. Link building can increase the number of high-quality links pointing to a website, in turn increasing the likelihood of the website ranking highly in search engine results. Link building is also a proven marketing tactic for increasing brand awareness.
In order to be effective, it’s important to program a proper link building campaign, with back links coming from different websites, hosted on different providers, with topics in line with the destination page.
Also the trust rank of the linking website is very important. It’s like in the daily life.. if 10 of your friends are talking well about you, is good, but if 10 referenced people, external to your group, are referencing you.. is much better.