Back-links are a vital tool for SEO of any website. For any website to rank high on the SERPs (Search Engine Results Pages), it needs a lot of back-links. But how many back-links does a website need? How many is enough? Well, no fixed number can be assigned for this purpose. When it comes to back-links, every website needs to stay ahead of its competitors who might be adding a lot of new links every month, because at the end, the website with the most number of good back-links is the winner, having the highest rank.