These rules are known in the SEO world as search engine ranking factors. In simple terms, these are the factors that influence the ranking position in which a website will appear in a search query. Backlinks play a crucial role in improving the reputation of your website. It's when other websites back up your website.
However, it's important that your website is backed by reputable websites. Search engines pay a lot of attention to backlinks. So, make sure you have quality content on your website.