Do outbound links help SEO?

How many outbound links should a page have?

There is no ideal number of outbound links for SEO. A page should contain as many as it needs to support claims, cite sources and direct readers to information that is better covered elsewhere.

A short service page may need none. An article based on research, legislation or technical documentation may need several. A research-heavy resource could contain dozens if each link serves a purpose.

Recommendations such as “include two to five outbound links per page” are therefore not useful. They turn an editorial decision into a numerical target.

Each link should have a purpose

Before adding an external link, ask what it contributes. It should normally:

• substantiate a factual claim

• identify the original source of a statistic or finding

• point to official guidance or documentation

• provide evidence that would be impractical to reproduce

• give readers access to relevant information outside the scope of the page

If a link does none of these things, adding it simply to increase the link count is unlikely to improve the content. The same principle applies when optimising content for SEO: changes should improve how well the page answers the target query, not satisfy an arbitrary checklist.

Too many links can make a page harder to use

A large number of outbound links is not automatically an SEO problem, but excessive linking can distract readers and make important references harder to identify.

If almost every sentence contains a link, the page starts to behave more like a directory than a coherent explanation.

There is no need to set a maximum. If removing a link would weaken the evidence, remove important context or deprive the reader of a relevant source, keep it. If nothing is lost, the link probably is not necessary.

Linking to competitors without weakening the page

Linking to a competitor is not inherently bad for SEO. The question is whether that competitor is the best source for the information you are referencing.

A competitor may have published original research, created a tool or produced data that directly supports your point. In that case, replacing the link with a weaker third-party source simply to avoid mentioning them would make the article less rigorous.

The commercial context still matters. Citing a competitor as a source is different from sending a prospective customer to its service or product page.

If another SEO consultancy published research I relied on, I would link to the original study. I would be far less inclined to link from a paragraph about hiring an SEO consultant to that competitor's service page, because the destination adds little evidence and gives the reader an immediate route to another supplier.

The same applies to product businesses. Linking to a manufacturer's technical specification may help explain a product. Linking unnecessarily to another retailer selling the same item at the point where the reader is deciding where to buy is a different decision.

Do not substitute an inferior source simply to avoid a competitor. If they own the original evidence behind a claim, cite it or reconsider whether the claim is worth including.

When deciding whether to link, consider what the reader will find after the click, whether a neutral or primary source would be better, and whether the destination helps them understand the subject or simply diverts them to another supplier.

There is no SEO rule requiring you to avoid competitors. Use the best source for the content, while taking the reader's stage in the buying journey into account.

Choosing anchor text for outbound links

The anchor text of an outbound link should tell readers what they will find after clicking it. Descriptive wording is more informative than generic anchors such as “click here”, “read more” or “source”.

For example, if you are linking to Google's guidance on paid links, use anchor text such as Google's guidance on qualifying outbound links rather than linking the word “here”.

The anchor should also match the destination. If it says Google's spam policies, it should lead to that documentation rather than Google's homepage or a general Search Central page.

There is no need to force keywords into outbound anchor text. Use wording that fits the sentence and accurately describes the source. Exact-match phrases are fine when they are the natural description of the destination, but awkward keyword-rich anchors add nothing for the reader.

Keep anchors concise where possible. Linking a specific phrase is generally easier to scan than linking an entire sentence, and descriptive text is preferable to displaying a raw URL.

The same principle applies to internal and external links: the anchor should make sense in context and accurately describe where the reader is going.

Opening outbound links in a new tab

Whether an outbound link opens in the same tab or a new one is a user-experience decision, not an SEO tactic. There is no ranking advantage to using target="_blank".

For most editorial links, I would keep the default behaviour and open them in the same tab. Readers who want to keep your page open can choose to open the link in a new tab themselves.

A new tab can make sense when leaving the page would interrupt a task, such as completing a form, comparing information or following a multi-step process.

I would not force every external link into a new tab simply to “keep people on the site”. The choice should be based on what makes the journey easier for the reader, not on an assumed SEO or engagement benefit.

Maintaining outbound links over time

Outbound links can become outdated because external pages are outside your control. They may be deleted, moved, redirected, rewritten or transferred to a new owner.

When you update content, check that important external links still lead to the source you intended and still support the claim beside them.

Replace broken or moved links

If a linked page has been deleted or moved, update the URL where possible.

• Link to the new location if the resource has moved.

• Use a replacement source if the original is no longer available.

• Remove the claim if you can no longer substantiate it.

Simply deleting a broken link while leaving an unsupported statistic or statement behind does not solve the underlying problem.

Check the final destination of redirects

A redirected link is not automatically a problem. Websites often use 301 redirects when pages move.

What matters is where the redirect ends.

If an old report redirects to its current version, the source may still be appropriate. If it now leads to a homepage, unrelated article or sales page, the link may no longer support what you have written.

Replace outdated sources

A working link can still point to obsolete information.

This matters particularly for legislation, government guidance, statistics, market research, software documentation, product specifications and search engine guidance.

When updating an article, check whether newer evidence is available and whether it changes the claim you are making. Replacing an old URL without reviewing the surrounding copy may leave the article inaccurate.

Check older domains

Domains can expire or change ownership. A website that once hosted a legitimate resource may later contain advertising, unrelated content or spam.

For important citations, check what is now on the page rather than relying only on whether the URL returns a successful response.

Review links when the content is reviewed

There is no need to audit every outbound link on an arbitrary quarterly schedule. Review them when:

• updating an article

• refreshing statistics or research

• conducting a content audit

• a crawler identifies broken or redirected URLs

• an important source changes or disappears

Automated tools can find broken links and redirects, but they cannot always tell whether the destination still supports your claim. A working outbound link can still be outdated, irrelevant or misleading.

How I approach outbound links when optimising content

When I review a page as part of an SEO audit, I do not start by counting external links. I look at where the content needs evidence, attribution or access to information that belongs elsewhere.

My process is:

Identify claims that need a source

Statistics, research findings, legislation, technical guidance and claims about how a platform works should be traceable where possible.

If I state that Google recommends rel="sponsored" for paid links, I should link to Google's documentation. If I am describing something I have observed through my own SEO work, I should present it as professional judgement rather than attach an unrelated citation.

Decide whether an external link is necessary

Not every related topic needs an external source.

Some information belongs on the current page because it is essential to the search intent. Some is better covered briefly with an internal link to a specialist Hello Digital article. Other claims need an external source because another organisation owns the underlying evidence or documentation.

Anything that does not help answer the query should be left out.

Link directly from the relevant statement

When a source is needed, I place the link where it supports the claim rather than adding a separate sentence purely to accommodate it.

The reader should be able to see what the source relates to without having to work through several links in the same paragraph.

Review the destination, not just the URL

I check whether the destination still supports the statement, whether a more direct source exists and whether sending the reader there makes sense at that point in their journey.

The commercial context matters too. Citing a competitor's original research may be appropriate. Linking to its service page while the reader is comparing suppliers may not be.

Apply the technical treatment afterwards

Only once the link has earned its place do I consider the anchor text, rel attribute and whether it should open in a new tab.

The principle is simple: every outbound link should contribute something specific to the page. If its only justification is that external links are supposed to help SEO, I leave it out.

Outbound link best practices

Use outbound links when they improve the page for the reader, not to meet an SEO quota.

• Link to evidence, not just related content. Use external sources for statistics, research, legislation, technical guidance and original documentation.

• Prefer primary sources. Link to the organisation, study or document that produced the information where possible.

• Make sure the destination supports the claim. A reputable domain is not enough if the specific page does not contain the evidence you are citing.

• Use descriptive anchor text. The linked words should indicate what the reader will find.

• Use the correct link attribute. Standard editorial links need no special treatment. Use sponsored, ugc or nofollow where the relationship with the destination requires it.

• Do not chase a target number of links. Add as many as the content needs and no more.

• Review important links when you update the page. Replace broken, outdated or redirected sources that no longer support the content.

• Consider the reader's next step. A link should help them verify, understand or explore the subject, not divert them without a reason.

FAQs about outbound links and SEO

Are external links good for SEO?

External links can strengthen a page when they support claims, cite evidence or direct readers to information better covered elsewhere. Google recommends linking externally where it makes sense, particularly when citing sources. That does not mean every external link provides a direct ranking boost.

Are outbound links and external links the same thing?

In most SEO contexts, yes. Both terms describe a link from your website to another domain.

Internal links connect pages on your own website, while backlinks point to your website from another site.

Does linking to high-authority websites improve SEO?

Not simply because the destination is authoritative. Linking to Google, Wikipedia or a high-DR website does not automatically improve your rankings.

Choose the source because it supports the claim. A specialist regulator, research paper or industry body may be more appropriate than a larger, better-known website.

Do outbound links pass PageRank?

Normal crawlable links can be considered by Google's link systems. Attributes such as nofollow, sponsored and ugc provide additional information about how Google should treat them.

That does not mean you should avoid editorial links to conserve “link juice”. If the source belongs in the content, concerns about losing PageRank are not a reason to remove it.

Can too many outbound links hurt SEO?

There is no recommended maximum number of outbound links.

Problems arise when links overwhelm the content, distract readers or form part of a manipulative linking pattern. The number itself matters less than whether each link has a purpose.

Should all outbound links be nofollow?

No. Ordinary editorial links do not need nofollow.

Use sponsored for paid or affiliate links, ugc for user-generated links, and nofollow where you do not want a link treated like a normal editorial reference. I cover the distinction in more detail in my article on nofollow links and SEO.

Do outbound links help E-E-A-T?

Outbound links do not increase an E-E-A-T score because Google does not use E-E-A-T as a single ranking score.

Relevant citations can, however, make it easier for readers to verify claims and understand where information comes from. Adding authoritative-looking links without supporting the content does not create expertise or trust.

Are affiliate links outbound links?

Yes. Affiliate links are outbound links because they send visitors to another website.

Because they exist within a commercial relationship, Google recommends marking them with rel="sponsored". nofollow is still accepted for paid links, but sponsored describes the relationship more precisely.

Does every page need outbound links?

No. A page should contain outbound links only when another source contributes something the reader needs.

A service page may need none, while an article relying on research, legislation, statistics or technical documentation may need several.