Why Should My Website Link to Other Sites? I Thought It Was the Other Way Around.

BLUF: Both kinds of links matter, and they do different jobs. When other sites link to you, they vouch for you. When you link out to a good source, you show your proof, and that part is completely in your hands. It's one of the 19 signals AI checks before it recommends a business. The source doesn't have to mention you, either. Any credible page that backs up what you said will do.

Key Takeaways

• Links pointing to your site are other people vouching for you. Links from your site to good sources show where your claims come from. AI pays attention to both.
• AI models learned from huge amounts of text, including encyclopedias and research papers that back up what they say. Pages that do the same look like the information AI already trusts.
• In a 2024 lab test by researchers at Princeton and IIT Delhi, pages that added sources, real numbers or quotes from experts showed up more in AI answers. Stuffing in keywords made things worse.
• The source can be about your industry instead of about you. A government page, a trade group or a manufacturer's guide that backs your point counts.
• The fastest place to start is the list of sites AI already reads about your business. Link to the good ones from the claims they support.

Wait, isn't this backwards?

For about 20 years, the advice on getting found in Google went like this: get other websites to link to yours. Each link was like a vote. More votes from better sites, and you climbed the page.

That advice still holds. When a local paper, a trade group or a happy customer's blog links to you, that's someone else vouching for you, and AI notices that kind of outside support too.

Linking out does a different job. (Web people call these outbound links or external links: links on your site that send the reader to someone else's.) It answers a question AI asks about your own website: "Do you know your stuff?" And the way you prove you know your stuff is the way a good student does it. You show your work.

Why does AI care what I link to?

Think about where AI learned to read. Models like ChatGPT learned from enormous piles of text, and the pages people trust most in that pile, like encyclopedias and research papers, back up what they say. Wikipedia won't keep a claim that's likely to be challenged unless it points to a published source a reader can check.

So when your page backs up its claims the same way, it reads like it was written by someone who checked the facts. That puts it in the same company as the sources AI already leans on. Nobody outside the AI companies knows exactly how much weight a single link carries, so I won't pretend to.

There is some research, though. In 2024, researchers from Princeton and IIT Delhi tested different ways of rewriting web pages and measured how much each version showed up in AI-generated answers. Pages that added citations to credible sources, real statistics or quotes from experts all showed up more. Quotes did best, at about 40% more visibility. Keyword stuffing, the old trick, did worse than leaving the page alone. It was a lab test, so I'd treat it as a strong hint.

Google points the same way. Its own checklist for good content asks whether a page presents information in a way that makes you want to trust it, "such as clear sourcing" (Google Search Central).

And your buyers have always worked like this. When a roofer says "most leaks start at the flashing" with nothing behind it, the homeowner has to take his word for it. When the same line links to the shingle maker's installation guide, the homeowner can check. AI looks for the same proof a careful buyer does.

Does the source have to mention my business?

No. Any credible page that backs up your point works, even one that's never heard of you. You're showing where a fact came from, and nobody expects the Department of Energy to write about your HVAC company.

Look for two kinds of sources. The first is data: a number from a government agency, a university, a trade association, or a manufacturer that publishes its testing. The second is a person with standing, like a named expert or a professional association whose word carries weight in your field. If you can quote them, even better. Quotes were the top performer in that Princeton test.

Some examples:

• An HVAC company explaining why filter changes matter links to ENERGY STAR's guidance on heating and cooling care.
• A roofer explaining how long shingles last links to the manufacturer's warranty or install guide.
• A vet clinic explaining when puppies need their shots links to the American Veterinary Medical Association.
• An insurance broker explaining a coverage rule links to the state insurance department.
• A marina explaining what safety gear a boat needs links to the U.S. Coast Guard.

Put the link right next to the sentence it supports. A list of links in your footer is too far away to back up anything in particular.

Where should I start? With the sites AI already reads about you.

If you use AI Trust Signals, there's a shortcut. Your Reputation Readout shows the sites AI reads when it describes your business, sorted into three groups: Owned (the ones you control), Influenced (the ones you can shape, like listings) and Earned (the ones other people wrote about you).

AI already reads those Earned sites when it talks about you. So link to the good ones from your own pages, right at the spot where they back you up. Say the local paper wrote about your family running the business for three generations. Link that story from the line on your About page that says so. Now your website and a source AI already trusts point at each other and tell the same story.

I can't prove exactly why this helps, so here's how I think about it. AI recommends businesses it can find proof for. A claim on your site that matches a source AI already reads is easier to believe than a claim sitting there alone.

Be picky. Some sites on that list won't deserve a link. When we checked our own business in August, two of the top three outside sites AI was reading were online dictionaries, and those back up nothing about us. Skip your own social media pages too. They're yours, so they don't count as outside proof.

We're working on this one ourselves. Our October report said our weak spot was claims on our site that nobody else backs up yet. Linking our claims to the outside sources that confirm them is the fix.

What makes a good link?

• It sits next to the claim it supports, in the main text of the page.
• It goes to the original source. If a blog quotes a government number, link to the government page.
• It lands on the exact page with the fact, so nobody has to dig for it.
• It still works. A dead link backs up nothing, so check your important pages now and then.

One strong link for each big claim is plenty.

How does AI Trust Signals help?

Your AI Trust Signals Score checks whether your content backs up its claims with links to credible outside sources. You get a clear pass or fail, in plain words, along with the fix.

The Reputation Readout shows the outside sites AI reads about your business, so you know which ones are worth linking to. And the Workbench walks you through this fix alongside the rest of your list, so you know what to work on first.

What should you do this week?

Pick the page buyers see most, usually your homepage or your main service page. Find the biggest claim on it, the one a skeptical buyer would want proof of. Then find one credible page that backs it up and link to it right there in the sentence.

Then start your free trial: 10 days free, full product, cancel anytime. After that, it's $25 a month. In minutes you'll see whether AI finds the proof behind your claims, and which outside sites it already reads about you.

Frequently Asked Questions

Do links from other websites to mine still matter?

Yes. They're other people vouching for you, and AI notices them. Linking out does a different job: it shows where your own claims come from. You want both, and linking out is the one you can do today without asking anybody.

Will linking to other sites send my customers away?

Some buyers will click. A buyer who checks your claim and finds it holds up has more reason to trust you, and that's the buyer you want. Link to sources that back your point, never to competitors.

How many external links should a page have?

There's no magic number. For our check, one is enough to pass: a link in the main text to a credible outside source, placed next to the claim it supports. In practice, give each of your biggest claims a source. Extra links that don't back anything up won't make a page more believable.

What kinds of sites count as credible?

Government and university sites, trade associations, standards groups, major news outlets, and research from companies that explain how they got their numbers. Links to social media, ads, affiliate or partner deals, and other pages on your own site don't count as outside proof.

How do I get cited by ChatGPT?

Nobody outside OpenAI controls that. In the Princeton and IIT Delhi lab test, pages that added sources, real numbers and quotes from experts showed up more in AI answers, so backing up your claims is a good start. Keep in mind that showing up and getting recommended are two different things. ChatGPT can cite your page and still tell the buyer to call someone else. What gets a business recommended is proof, like real reviews and claims that other sources back up.