An outbound link is any link on your site pointing to a page on a different domain - a citation, a source reference, a tool recommendation. A lot of small business owners hesitate to add them, worried that sending a visitor away (or "leaking" some abstract pool of ranking value) will hurt their own page. That worry is mostly a leftover from an older, incorrect theory of how PageRank works.
Does Linking Out Actually Hurt Your Rankings?
No, not in any meaningful way for a normal, editorially-reasonable outbound link. The "leak" theory comes from early-2010s "PageRank sculpting" advice, where sites used nofollow on outbound links specifically to try to hoard link equity for their own pages. Google closed that loophole years ago (changing how nofollow interacts with PageRank distribution in 2009), and today a handful of genuine, relevant outbound links is treated as normal, healthy web behaviour rather than a cost.
If anything, the opposite mistake - a page with zero outbound links to any external source, ever - can look isolated and thin, particularly for content that makes factual claims a reader would reasonably expect to see sourced.
Why Linking to Authoritative Sources Helps
- It's an E-E-A-T signal. Citing primary sources (Google's own documentation, a government statistics page, a peer-reviewed study) shows you did the work rather than restating secondhand claims. See our E-E-A-T guide for the fuller concept.
- It improves the reader's experience. A claim backed by a link to where it came from is more trustworthy and more useful than the same claim asserted with no source.
- It's a contextual relevance signal. Linking out to topically-related, well-regarded pages tells Google (and the reader) what neighbourhood of the web your content sits in.
How Many Outbound Links Is Reasonable?
There's no fixed number, and any specific figure you see quoted elsewhere is a rule of thumb, not a Google guideline. A useful test instead: does every outbound link on the page earn its place by genuinely helping the reader verify a claim, find a tool, or go deeper on a subtopic you're not going to cover yourself? A 1,500-word guide with two or three well-placed citations reads as well-researched. The same guide with fifteen outbound links reads as thin content padded out with other people's work, and that impression matters more to a reader (and, indirectly, to engagement signals) than any specific link count.
nofollow or Not?
Most editorial outbound links (citing a source, recommending a genuinely useful tool) should be left as normal, followed links - that's the default, honest signal. Reserve rel="nofollow" (or the more specific sponsored / ugc values) for the cases that actually call for it - paid placements, affiliate links, and content you don't fully vouch for. Our nofollow links guide covers the full decision tree and the common mistake of using it on your own internal links by accident, which is the opposite problem from the one this post covers.
Common Mistakes With Outbound Links
Linking to sites that later go down or change subject. A citation that 404s or now points somewhere unrelated is worse than no link at all - it actively confuses a reader who clicks through expecting the source you described. Recheck outbound links on your most important pages periodically.
Treating "no outbound links" as safer. It isn't. A page with zero external references on a topic where sourcing is expected can look less trustworthy, not more protected.
Linking to direct competitors from a sales or landing page. Editorial content (a blog post, a comparison guide) can reasonably link to a competitor if it's genuinely useful context. A page whose job is to convert a visitor generally shouldn't send them to a competitor's site at all - that's a conversion decision, not an SEO one, but worth separating from the general outbound-linking advice above.
The Practical Takeaway
Link out when it genuinely helps the reader verify a claim or find something useful you're not going to cover in full yourself, use normal followed links by default, and reserve nofollow/sponsored/ugc for the specific cases that call for them. For the internal side of the same picture - linking between your own pages - see our internal linking guide, and run a free AuditCrow scan to check for broken links and other technical issues on your key pages.
