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.
What I’d do first
- Link out only when it adds value—credibility, context, or a clear next step.
- Always link to the original source, not a summary or aggregator.
- Write anchor text that tells users what they'll find.
- Audit your external links quarterly to catch broken or outdated ones.
- Balance external links with internal links to keep readers on your site.
Here's the approach I use now.
What I'd do first
- Link only when it helps the reader. If a link adds context, backs a claim, or offers a next step, add it. If it's just there to pad the page, skip it.
- Pick the original source. If you're citing a stat, link to the study or report, not a news article summarizing it. That's where the authority lives.
- Write descriptive anchor text. Instead of "read more" or "here", use something like "Google's search quality guidelines" so users know what they're getting.
- Set a regular audit cadence. Broken links erode trust. I check mine quarterly using a tool like Google Search Console or a crawler.
The path I'd take
- Decide if the link is necessary. Ask: does this improve clarity, credibility, or usefulness? If no, don't link.
- Find the best source. Use the original research, official documentation, or a well-known authority in the space. Avoid aggregators or low-quality blogs.
- Write anchor text that describes the destination. Keep it natural but specific. For example: "According to Moz's guide on external links..."
- Choose follow or nofollow. For trusted, relevant sources, use a followed link. For sponsored, user-generated, or untrusted content, add
rel="nofollow". - Balance with internal links. Don't let external links dominate. Your page should still funnel readers to your own content where it makes sense.
- Audit regularly. Set a reminder to check for broken or outdated links. Replace or remove them as needed.
Watch-outs
- Linking to irrelevant or low-quality sources. It signals poor editorial judgment and can hurt your credibility.
- Vague anchor text. "Click here" or "this article" gives users no context. Be specific.
- Skipping audits. Broken links accumulate over time. I've seen pages with 404s that were years old.
- Over-linking. Too many external links can distract readers and dilute your page's focus. Quality over quantity.
What I got wrong
Early on, I thought more external links meant more credibility. I'd link to anything that seemed related. The result? Cluttered pages and a few broken links that I didn't catch for months. Now I'm ruthless: if a link doesn't serve the reader or support a specific claim, it's gone. I also used to write anchor text like "source"—lazy and unhelpful. Descriptive text takes an extra second but makes a huge difference.
Next step
Quick answers
What is external linking in SEO?
External linking is adding a hyperlink from your website to a page on a different domain. It is used to cite sources, support claims, or provide additional resources for readers.
Do external links help SEO?
Yes, when done correctly. External links to relevant, authoritative sources can improve credibility and topical context. However, they are not a direct ranking factor and should be used to enhance user experience.
What is the difference between external and internal links?
External links point to a different domain, while internal links point to another page on the same website. Both are important for SEO but serve different purposes.
Should I use nofollow on external links?
It depends. Use nofollow for links to untrusted or sponsored content. For trusted, relevant sources, followed links are fine. This is a tactical choice, not a universal rule.
If you liked this
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.
Notes from Callum Bennett.