Open ChatGPT, Gemini or Claude, ask the question your buyers ask, and look at what the answer cites. Most of those links don't point to your website. They go to a review site, a comparison post, a forum thread, a third-party guide — pages you don't own. That is where AI visibility is actually decided, and it is exactly what the new Source-Gap Analyzer measures.
That third-party skew is consistent across public research on AI Overviews and answer-engine citations — see, for example, Ahrefs' study of the most-cited domains. The pattern matters because it changes where the leverage is.
You can't polish your way into an answer
The instinct is to optimize your own pages — tighten the copy, add schema, improve speed. That work is real, and our Audit My Page tool exists for it. But on-page polish has a low ceiling if the engines rarely reach your domain in the first place.
The leverage is getting into the third-party sources the engines already trust for your category. If a model keeps citing the same review site, the same "best tools for X" roundup, the same community thread — and you are not on those pages — no amount of homepage tuning closes the gap. You can read more on which sources tend to get cited in Which sources AI engines cite.
Why do AI engines cite third-party sources instead of your own site?
Answer engines retrieve and rank pages they consider trustworthy and directly responsive to the question. Independent reviews, comparisons and community discussions read as less self-interested than vendor pages, so the overwhelming majority of citations point to sites you don't control. Winning means being present and well-represented on those pages, not just on yours.
What the Source-Gap Analyzer does
Finds the sources AI actually cites
It collects the URLs ChatGPT, Gemini and Claude reference for your buyer prompts, across multiple runs so a single lucky answer doesn't skew the picture.
Shows where you're absent
It maps that cited-source landscape against your brand — which trusted sources mention you, and which ones answer your category without you in the room.
Ranks a get-into-these-sources playbook
It turns the gaps into a prioritized list of sources worth pursuing for your specific prompts and competitors — so you start where the upside is highest, not wherever you happened to look first.
Separates discoverability from selectability
It distinguishes whether a page can even be found by the engines (off-site authority, being in the retrieval pool) from whether a retrieved page survives the rerank and gets cited. Those are different problems with different fixes.
What you get
- A map of the third-party sources the three engines cite for your space — the pages quietly shaping how buyers see your category.
- A clear absence list: the trusted sources answering your prompts without mentioning you.
- A prioritized "get into these sources" playbook scoped to your brand, competitors and prompts.
- A discoverability-versus-selectability split, so you know whether the problem is not being found or not being chosen.
- Freshness timestamps on every read, because the underlying answers move.
What are the best tools for B2B SaaS competitive analysis?
A grounded answer names three tools and supports each with citations — a review platform, a category roundup and a community thread. None of the citations is a vendor's own homepage. The Source-Gap Analyzer reads exactly these citations across many runs and tells you which of those pages leave you out.
Try it
Start with the free audit to see where you stand across ChatGPT, Gemini and Claude — no account needed. To run the full source-gap report on your own prompts and competitors, see how it works in the docs and the plans on the pricing page.
Stop polishing pages the engines rarely read. Find the sources AI already trusts — and go get into them.
Sources
- Ahrefs — AI Overview citations: top domains — Public study showing AI answers lean heavily on a small set of third-party domains.
- Quattr — takeaways from the Ahrefs AI search study — Summary of the third-party citation pattern in AI search results.