External Linking

I start with a single question: does this link improve clarity, credibility, or usefulness for the reader? If not, I delete it. That rule has saved me from cluttering dozens of pages. Here is a worked example. I was writing a page about what counts as a backlink for a client in the legal niche. I wanted to cite a study claiming that links from .edu domains carry more weight. The study was on a third-party blog with no author. I passed. Instead, I linked to a Google patent that describes the concept of topical authority. The patent is original, stable, and directly relevant. That one link did more for the page's trust than ten links to recycled blog posts.

When I choose a source, I assess three things: relevance to the exact claim, authority of the domain, and whether the content is stable. I check [Domain Authority](/domain-authority/) as a rough proxy, but I also read the page itself. If it is thin or full of pop-ups, I look elsewhere. I limit external links to three or four per thousand words. More than that and the page starts to feel like a directory. I also place the link on the first relevant mention, not buried at the end.

Anchor text is where I see most people slip. I write a phrase that tells the reader exactly what they will find. For example, instead of "click here" for a Google guideline, I write "Google's Search Central documentation on link schemes". That descriptive anchor helps both users and search engines. I also consider whether the linked page itself is good enough to send someone to. If it redirects or loads slowly, I find a better source. Finally, I use this test: would I want to click this link if I were in a hurry? If the answer is no, it goes.

The most common mistake I see is linking to irrelevant or low-quality sources. It signals poor editorial judgment. I once audited a client's finance page that linked to a celebrity gossip site to support a claim about interest rates. That link destroyed credibility. Always check the source's reputation and the page content itself. Avoid aggregators that just rephrase the original research; find the original report. If the original is behind a paywall, consider whether a secondary source is acceptable or if you should paraphrase instead.

Vague anchor text is another trap. "Click here", "this article", "learn more" give the user no context. Every external link should be a micro-decision: the anchor should describe the destination precisely. Over-optimised exact-match anchor for external links can also look unnatural, so I vary phrasing.

Broken links accumulate silently. I use a [backlink checker](/backlink-checker/) to run monthly audits across the sites I manage. I have caught year-old 404s that were linking to deleted competitor pages. Schedule a regular [backlink audit](/backlink-audit/) to catch these. Also watch for links that point to pages that have changed content. The URL might still work, but the topic might have shifted, making your link irrelevant.

I also see people avoid linking to competitors because they fear giving away link equity. That is a weak excuse. If a competitor has the best resource for a specific claim, link to it. Your readers benefit, and the page that links to authoritative sources tends to be treated as more thorough. However, in highly competitive spaces, some argue against it. I still do it, but I make sure the competitor page is genuinely superior and not just passable.

Finally, be cautious with nofollow vs. follow. If you do not trust a source enough to pass link equity, you probably should not link to it at all. I rarely use nofollow on external links; I just omit the link. That keeps the [anchor text](/anchor-text/) clean and the page honest.

Early in my career, I thought external links were a direct ranking signal. More links meant more credibility. I would link to any high-authority page that vaguely touched on the topic, regardless of relevance. I remember adding a link to a dictionary definition of "SEO" on a page about link building. It added nothing. The page looked cluttered and the reader got no value. Now I am ruthless: if a link does not serve a specific purpose, it is gone.

I also used to write anchor text out of fear. I wrote "click here for more information" because I did not want to sound over-optimised. That was lazy and it hurt the user experience. I have since learned that descriptive anchor text is better for everyone. I changed my approach after I noticed that pages with vague anchors had higher bounce rates on the external link clicks, probably because users did not know where they were going.

Auditing was another blind spot. I would add links and forget about them. I once discovered a client's site that had been linking to a broken Wikipedia page for eight months. That looked careless. Now I set calendar reminders to run a backlink audit using a tool. It catches dead links and helps me plan replacements.

I also worried that external links would send users away permanently. I feared it would reduce page views and time on site. The opposite happened. When I added a link to a solid resource, users clicked, read, and often returned because they trusted the page more. Dwell time increased. That experience changed my mind about external linking from something to minimise to something to use strategically.

Finally, I used to avoid linking to what I considered "competitor" content. I did not want to pass any perceived value. But I now see that linking to the best resource builds your own authority as a curator. As long as the link is editorial and genuinely helpful, it strengthens your content. I have even had cases where the linked competitor noticed and linked back later. So my rule now is: link to the best source, no matter who hosts it.