External Link
A hyperlink from one domain to a page on a different domain. External links (outbound links) point from your website to another website and provide context, authority signals, and user experience benefits.
What is External Link?
External links connect content on one domain to content on another domain. When you write an article and link to authoritative research from another site, you're creating an external link. These links serve multiple purposes: they provide sources and context for your claims, satisfy user intent by directing readers to relevant information, and signal to search engines that you're part of a broader ecosystem of trusted sources.
From an SEO perspective, external links serve as citations that validate your content. When you cite reputable, authoritative sources, Google interprets this as a sign that your content is credible and well-researched. External links to high-authority sites also provide topical context—linking to relevant articles helps Google understand what your page is actually about.
External links differ from backlinks (inbound links to your site from other domains). While backlinks are largely beyond your control and are weighted heavily in ranking algorithms, external links are under your control and should be strategically placed. Quality matters significantly—linking to spam, low-authority, or irrelevant sites can hurt your credibility.
Best practice for external links involves moderation and intentionality. Typically, articles should contain 3-5 high-quality external links to relevant, authoritative sources. Use natural anchor text that describes what readers will find, and prioritize linking to authoritative, relevant sources that genuinely enhance your content's credibility.
Why It Matters for SEO
External links impact both user experience and SEO rankings. Strategic external linking signals that you've done thorough research and understand your topic's broader context. Google's E-E-A-T evaluation considers whether content links to authoritative sources as part of trustworthiness assessment. Sites that use external links strategically see better rankings because Google interprets their content as more credible and better researched.
Examples & Code Snippets
Strategic External Link in Article
<p>According to <a href="https://developers.google.com/search/docs" rel="noopener">Google's official Search documentation</a>, the search engine uses hundreds of ranking factors to determine page relevance.</p>Links to an authoritative primary source (Google's official documentation) that directly supports the claim.
Link to new, lesser-known but authoritative sources alongside established leaders. This helps Google discover high-quality content, positions your site as a curator of valuable information, and can lead to those sites linking back to you—a mutually beneficial relationship.
Frequently Asked Questions
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