A backlink is simply a link from one website to another. Search engines like Google use backlink as a ranking signal because when one website links to another. A backlink is a link created when one website links to another. Backlinks are also called "inbound links" or "incoming links." Backlinks are important to SEO.
Backlinks are especially valuable for SEO because they represent a "vote of confidence" from one site to another.
In essence, backlinks to your website are a signal to search engines that others vouch for your content. If many sites link to the same webpage or website, search engines can infer that content is worth linking to, and therefore also worth surfacing on a SERP. So, earning these backlinks can have a positive effect on a site's ranking position or search visibility.
Become a Source For Reporters and Bloggers (HARO)
Publish “Skyscraper” Content.
Build Links From Outdated Resources.
Use Content Formats Proven To Generate Links.
Publish Ultimate Guides.
Use Branded Strategies and Techniques.
Authority Resource Pages.
Bonus Strategy #1: Turn Brand Mentions Into Quality Backlinks..