External Linking
External linking is the practice of adding links from your page to a different domain, usually to support claims, cite sources, or improve usefulness for readers.
- Also called
- outbound link
- Applies to
- all web pages
- Commonly confused with
- internal linking
Key points
- External links strengthen credibility and improve topical context when pointed to relevant, authoritative sources.
- Broken, outdated, or low-value references can hurt user experience and editorial trust, so regular audits are necessary.
- Descriptive anchor text helps users understand the destination and supports contextual relevance.
- Balancing external links with strong internal linking ensures the page still supports your site architecture.
- External links should be used for clarity, credibility, or usefulness, not just to increase link count.
Where it changes your decision
- When deciding whether to cite a source: external links to original sources improve credibility, but require ensuring the link remains active and relevant.
- When balancing link profile: external links should support user needs, not manipulate rankings; using a backlink checker can help assess the quality of outbound links.
- When auditing content: outdated or broken external links hurt user experience, so audits should identify and fix them.
What it is not
- Belief: adding outbound links boosts rankings. Correction: Google considers relevance and authority, but there is no fixed link-count rule.
- Belief: external linking is the same as internal linking. Correction: internal linking supports site architecture, while external links provide citations.
- Belief: all external links should be nofollow. Correction: nofollow is a tactical choice; see the nofollow and follow links seo moz case study for analysis.
- Belief: anchor text does not matter. Correction: descriptive anchor text helps users; see anchor text for guidelines.
Questions people ask
What is internal linking?
Internal linking is the practice of linking from one page on a domain to another page on the same domain. It helps distribute page authority and improve navigation. Unlike external linking, it does not involve different domains.
How to crawl a website?
To crawl a website, you can use a tool like Screaming Frog or a backlink checker to simulate a search engine's crawl. These tools follow links and gather data on pages, links, and metadata. The process helps identify broken links, redirects, and indexing issues.
How to get sitemap of a website?
You can typically find a sitemap by checking the robots.txt file for the sitemap location, or by visiting /sitemap.xml on the domain. Many SEO tools also generate sitemaps. A sitemap lists all page URLs for search engines to discover.
Sources
- Google Search Central Primary search-engine documentation for link-related guidance, site quality, and outbound-link best practices.
- Moz - External Links Clear definition and practical SEO framing for external links and anchor text.
- Search Engine Land - External Links Guide Practical editorial guidance on when and why to link out, including source quality and audits.
- Google Search Central - Spam Policies Useful for caveats around manipulative linking practices and policy-sensitive behavior.
Written and maintained by Nora Lindholm. Last updated 27 July 2026.
Spotted an error? Email me — corrections are logged and credited on the entry. Outbound links are unpaid; most are nofollow.