Inbound links, popularly termed backlinks, form the foundation of search engine optimisation. They are expressions of trust from one website to another about its credibility before the search engines. The ranking of any particular website on searching engines results pages depends on the quality and number of good inbound links to that site. Good backlinks from reputable domains increase domain authority, which promotes search visibility and organic traffic optimisation. Furthermore, spammy or bad backlinks affect a site’s credibility and can lead to penalties by search engines. Therefore, here is stressed the need for ethical and sustainable practices to build a healthy backlink profile for long-term SEO success.