A backlink is a hyperlink from one website to another. In the context of search engine optimisation (SEO), backlinks are often referred to as inbound links because they direct users from an external site to your own. Search engines like Google treat backlinks as signals of trust, relevance, and authority, which are factors that significantly influence how a website ranks in search results.
When a reputable website links to another site, it is essentially endorsing the content on that page. Search engines interpret this endorsement as a vote of confidence. The more high-quality backlinks a website receives, the more likely it is to be seen as a credible and valuable source of information.
However, not all backlinks carry the same weight. Links from authoritative domains such as established news outlets, government websites, or respected industry publications are far more valuable than those from low-quality or unrelated sites. Additionally, the context of the link, the anchor text used, and the relevance of the linking page all contribute to the overall impact of a backlink.
Search engines use backlinks to discover new pages and determine how pages are related. Websites with a healthy backlink profile are more easily indexed and tend to achieve higher visibility in search engine results pages (SERPs).
Consider a marketing firm that publishes an in-depth guide on certain marketing strategies, for example. If a well-known business magazine finds the guide useful and links to it within one of its articles, that backlink will pass authority to the agency’s website. Over time, if several reputable sources reference the same guide, the cumulative effect strengthens the agency’s SEO performance and increases organic traffic to the guide.