Last updated on January 25th, 2026 at 02:50 pm
It is hardly an unknown fact to you that there are external and internal links. Well, the devil is in the details. Or, in this case, in the terminology. In the SEO world, external links are sometimes called OBLs – outbound links, as they go out of your website.
Although there are no set rules about how many outbound links per page are ok, in this article, we will try our best to explain the key factors to consider. Also, we will discuss the differences between a high OBL and a low OBL backlink, how to assess the value of each, and how to rank a site that has too many.
Enjoy!
Outbound Links: SEO Definition and Basics
Outbound links are hyperlinks from your website that land on external domains. They do not affect your domain ranking (DR) directly, nor do they boost the link juice your website has. However, they can increase your credibility if going to high-authority sources as this demonstrates (in Google’s eyes) that your content rests on good research and preparation.
In fact, if your website has a good DR, decent, steady organic search traffic and TF:CF (Trust Flow: Citation Flow Ratio), OBL backlinks would be quite beneficial to the target domains they are directed to. That’s unless you have too many of them, especially on the same page – then the benefit for the receivers is minimal.
Why are OBLs in SEO Important?
OBLs on your website show users and search engines that you are a trusted source and this affects your brand authority.
Although they won’t work wonders with your DR, they make your content more helpful.
They strengthen topical relevance and context.
OBLs enhance context – which is so important if you want to get cited in AI Overviews.
When you reference relevant external pages (statistics, quotes, definitions, research), you help search engines – and readers – understand better what your page is about and what subtopics it touches. This can make it easier for Google to connect your content with the right search intent.
They build trust and reinforce E-E-A-T signals.
Linking to strong sources (government sites, original research, reputable industry publications) shows that you’re not making vague claims and you invest in in-depth research. You’re grounding your points in verifiable information, which increases perceived credibility. E-E-A-T isn’t a single “ranking factor”. However, Google does emphasize rewarding helpful, reliable content – especially on YMYL topics where trust matters.
They improve the user experience (and reduce doubt).
Good outbound links allow your readers to delve further into the topic you are covering and check external resources you have linked. Instead of forcing visitors to leave your page and “go verify” something themselves, you’re doing the vetting upfront – making the experience smoother and your content feel more complete.
They can open doors for relationships and earn links.
Consistently referring to other credible sources can put you on their radar. It’s not a guarantee, but this way you can get new collaboration opportunities, mentions, or even natural backlinks when your content genuinely adds value to the conversation.
Best Practices for OBLs
When it comes to outbound links, there are several key rules to keep in mind. Above all, focus on relevancy and authority to improve credibility and user experience.
Link for the right reasons
Add outbound links when they genuinely support the page:
- Cite a source (data, quotes, studies, official documentation).
- Send users to a useful resource that is outside your article’s scope (tools, calculators, guides, definitions).
- Strengthen an argument with evidence, especially when a claim benefits from verification.
Avoid adding OBLs just to “help SEO” or to push affiliate, paid, or exchange-driven links without a real user benefit. Any link that seems forced can get you either a penalty, a drop in traffic, or simply losing a reader’s attention to a competitor who did their homework.
Choose high-quality, relevant destinations
Your outbound links reflect your standards. Prioritize:
- Authoritative sites (government, universities, original research, recognized industry leaders).
- Topically relevant pages that match the intent of your content and audience.
When possible, link to the original source, not “stat roundups” that quote the stat or articles that repeat the same information. This reduces misinformation drift and shows you take pride in your work.
Use descriptive, natural anchor text
Anchor text helps both users and search engines understand what the linked page is about.
- Use specific anchors like “Google’s link spam guidelines” instead of “click here.”
- Keep it natural and context-driven.
- If you use keywords, do it lightly – forced, over-optimized anchors can look manipulative. Therefore, use broad match anchors where possible (unless you are linking to an article that defines the thing).
A good rule: the anchor should accurately describe what someone will get after clicking.
Control link quantity and placement
More outbound links is not automatically better.
- Link sparingly – include OBLs only where they add clear value.
- Avoid turning pages into “resource dumps,” which can look spammy and dilute focus.
- Consider delaying outbound links until you’ve established context. Too many links early can pull users away before they engage with your content.
Don’t worry too much about including a certain amount of external links in your content. Just make sure that when you quote someone, refer to a statistic or a study, or use a term that you won’t define in that same page, you link to the primary source (especially for stats and research), or the most authoritative one (when referring to a term or concept).
Check URLs carefully (before and after publishing)
Outbound links can decay over time, and messy URLs can harm usability.
- Confirm the page loads properly and isn’t broken.
- Avoid unnecessary redirects where possible.
- Remove tracking parameters (UTM codes) unless you intentionally added your own.
- Watch for accidental jump links that land users mid-page if that section is not the best match.
Then, run routine audits to catch broken external links and fix or replace them quickly.
Use the correct rel attributes
OBL attributes protect you and help you follow Google’s guidelines:
- rel=”nofollow” – when you do not want to endorse the page
- rel=”sponsored” – for paid links, sponsorships, and compensated placements
- rel=”ugc” – for user-generated content links (comments, forums)
Use standard follow links only when you are linking by choice and you trust the destination.
Set OBLs to Open in a New Tab
OBLs in SEO should support the reader, not interrupt them.
- Consider opening external links in a new tab with target=”_blank” so users can explore without losing your page.
- Avoid linking to direct competitors in most cases. If you must reference a competitor’s research, an unlinked mention can still acknowledge it without sending traffic or signals their way.
- Make it obvious a link goes off-site by using clear anchor text and surrounding context (and an external-link icon if your site uses them).
If you mention a competitor and have inserted a link to their Home page, you can ask them if they could also link to you from their website. Of course, make sure you find a relevant spot where the link would fit naturally, and suggest it to them. Note that you can expect this to work only if your metrics are in the same range or higher that theirs – otherwise, they have no reason to say “yes”.
High OBL Vs Low OBL Backlinks: Key Differences
High OBL backlinks are backlinks on a domain with many outbound links. The higher the OBL count of a page and domain, the lower the value of placing a backlink there (the less link juice your domain will receive).
We’ve illustrated the main differences in the table below:
| Factor | High OBL Backlinks (many outbound links) | Low OBL Backlinks (few outbound links) |
| Core meaning | Your link is on a page that links out to lots of external URLs | Your link is on a page with a limited number of external links |
| Link equity per link | Often lower per link because authority is spread across many outgoing links | Often higher per link because fewer outgoing links share the page’s authority |
| Editorial intent | Can look less selective; sometimes used for listings, exchanges, or monetized link-heavy pages | Looks more deliberate; typically an editorial “vote of confidence” |
| Trust signal | May feel spammy if links are excessive, repetitive, or irrelevant | Usually feels more trustworthy when links are curated and relevant |
| Topical relevance | Topic focus can be diluted if the page references many unrelated sources | Topic focus is usually tighter; links support one clear theme and intent |
| Placement | More likely to be in low-visibility areas (lists, footers, sidebars) | More likely to be contextual within the main body content |
| Anchor text | Higher chance of generic or repeated anchors, sometimes over-optimized | More likely to be natural, descriptive, and varied |
| Risk profile | Higher risk of devaluation/ignoring if the page resembles a link scheme or low-quality hub | Lower risk when the link is earned, relevant, and editorially placed |
| Referral traffic | Often weaker because link-heavy pages may have low engagement | Often stronger because contextual mentions can send qualified visitors |
| Quick vetting | Watch for thin content, heavy ads, too many outgoing links, off-topic sources | Look for depth, relevance, clean UX, and clear justification for the link |
High OBL Vs Low OBL Backlinks
Let’s paint the picture using the query of this BlackHatWorld user as an example:
In this case, the PR3 links will be much more worth it as the link of the user will compete with less other links for that all important link juice.
3 Tips to Rank a High OBL Domain
High OBL domains are either very popular websites, or PBN sites that exist primarily to sell backlinks.
If you want to rank a high OBL website, chances are that your metrics have been great before but have suddenly dropped after one of Google’s algorithm updates.
To rank it up again, you need to do the following:
1. Monitor your OBL link profile.
Are your outbound links relevant, or have you placed them just because they are in a paid arrangement or an exchange? If not in a deal and the content reads well and is helpful without this outbound link, ditch it.
However, if you come across a link that is irrelevant but you have receiver compensation to place it, or if you got a link in return, contact the vendor/website owner. Let them know that you are performing an OBL audit and as a result, you’ll have to remove their link.
Then, offer an alternative so that you don’t ruin the partnership. Either suggest that you place the link on another page that has a smaller OBL count, or offer to write a brand new article on your blog where that specific link will be placed and the topic will match the anchor keyword.
2. Write Fresh Content Consistently.
A lot of website owners that sell links to monetize their blogs do not invest in content creation themselves. Instead, they tend to rely solely on guest content which is often promotional in Google’s eyes.
Therefore, if your high OBL website needs to rise from the dust again, you need to publish new, high-quality and linkless content (you can include internal links and links to statistics you explicitly quote, but that’s it!).
This way, you’ll not only improve the overall quality of your blog, but you will also create an empty canvas for new potential link building clients and collaborators. But this time, don’t overdo it with those paid links!
3. Enhance your social presence.
With the arrival of AI, social media and forum mentions have become an important ranking factor. More often than not, you see the AI Overviews output summarizing sources from such platforms as opposed to blog articles.
So, you can start repurposing your blog articles across platforms like Medium. and LinkedIn Pulse, as well as in relevant threads on Reddit, Quora, BHW, SEOclerks, SitePoint etc.
And there you have it.
Outbound links aren’t an SEO cheat code, but they are a trust and relevance tool. Use them to cite authority sources, guide readers, and keep your linking profile clean. When you prioritize quality over quantity and understand the difference between high-OBL and low-OBL backlinks, you’ll build a safer, more credible site that performs better long-term.