A backlink in SEO is a link on a different website that points back to a page on your website. These links (also called inbound links) bring visitors to your site and signal to search engines like Google that your content is valuable. The more high-quality backlinks you have, the better your chances of ranking higher in search results.
Building backlinks is an important part of SEO. The best way to earn high-quality backlinks is by creating and promoting valuable content. When you publish articles, videos, or other helpful resources, people are more likely to reference or link to your site.
Simple strategies like guest posting, polite outreach to relevant sites, and offering your content as a replacement for broken links can also boost traffic and improve your search engine visibility.
Further reading: What Are Backlinks & How to Get Them