Internal links and external links are both essential for your website, but relatively speaking, backlinks are more important. Backlinks are considered one of the foundations of search engine optimization (SEO). You may need many high-quality backlinks because Google's algorithm considers it a core factor in determining page rankings.
Backlinks are like citations in a research paper. When a website links to one of your pages, it’s like a vote of approval. It means they trust your content and think it’s accurate.
However, getting backlinks from random phone number russian websites can do more harm than good. When word got out that backlinks can improve rankings, many website owners began to resort to black hat SEO, which is buying backlinks and placing the URL of the page in the comments section or similar locations.
For example, websites A and B in the same industry and with the same products both link to the same page on your website. The weight they pass depends on the weight of their domains. So, assuming website A has a higher weight, on a scale of 1-10, with 10 being the highest, the link weight that website A can provide to your website can be 10. On the other hand, website B can only provide a maximum weight of 9.