Link Building
A key piece in how Google determines if your website is one of authority or not is how many incoming links you have coming to your site. Not only how many links, but the quality of the links(do they come from a reliable source), and what those links say. In short, if you have a lot of quality links pointing to your website, you will be doing well in the organic search. There is a proper way to build quality links.
First and foremost, remember that