Backlinks or inbound links, the links you get to your pages from another website. And, a page with the maximum backlinks tends to get higher ranking organically.
Why It’s important to your website?
Google and other major search engines consider it as genuine “vote” that informs the search engines; to consider the content as a generic one. Every single thing has changed with the passing time with Google’s algorithm updates. However, backlinks creation remains unaffected. It is still a force to reckon in the SEO services, when it comes to rank higher in the SERP’s.