External Link

An external link is a hyperlink that points from your website to a completely different domain. While SEOs obsess over inbound backlinks, strategic outbound external linking is a critical component of on-page optimization. Linking out to highly authoritative, relevant sources (like academic studies, government data, or industry leaders) signals to Google that your content is well-researched and trustworthy. It builds semantic entity associations that validate your expertise. Precise external linking reinforces E-E, A-T signals and proves to the algorithm that a page belongs among the most authoritative resources on the web.

External Link Simplified

An external link is a link on your website that sends the user to a different website. Linking to highly trusted websites, like universities or major news outlets, shows Google that you did your research and that your content is reliable.