What are SEO backlinks?
If we separate the internet into two categories, content and links between the content, we conclude that the search engines require a way to determine which pages are the most important for certain search terms. Essentially, we need a ranking system.
The quality and the number of backlinks that refer to a page are becoming a factor for ranking pages. Backlinks are essentially a vote of confidence from one website to another. The more quality backlinks you receive (the source website has a good reputation), the more favorable situation in the eyes of the search engine will be for your website. This will, in return, bring better rankings.