Link building refers to other websites and pages linking to your own, and it is a critical part of SEO. When your website has a strong link profile, search engines respond by ranking your website higher on results pages, which generates valuable organic traffic, increases your authority, and builds your brand. However, a poor link profile can damage your ranking, or worse—a bad profile can turn toxic and get your website penalized by search engines. Here is the List: 1 2 3 4