I was shopping for a cat water fountain, got overwhelmed by recommendations, and just asked ChatGPT and Perplexity instead.
What surprised me: even when I asked about one specific brand, the AI didn’t only repeat the brand’s own pages. It pulled in Reddit, retailer reviews, YouTube, and review sites too.
So I ran a proper small test.
I used one real brand, PETLIBRO, as a public example and tested 15 pet-water-fountain queries across three buyer stages: problem-aware, solution-aware, and brand-aware. I ran each query once on Perplexity and once on Solution-aware, e.g. “best / quietest cat fountain”ChatGPT 5.5 thinking, then recorded the visible cited sources.
Here’s what stood out:
| Query stage |
Brand shown? |
Who AI cited |
| Problem-aware, e.g. “why won’t my cat drink?” |
0/5 |
Vets, health sites, Reddit, pet-care blogs |
| Solution-aware, e.g. “best / quietest cat fountain” |
4/5 |
Review media, retailers, brand pages |
| Brand-aware, e.g. “review / vs / alternatives” |
5/5 |
Brand site + review sites + Best Buy + Reddit + YouTube |
The brand’s own site did show up, especially in ChatGPT.
But even on brand-aware queries, it was never the whole answer. Reviews, retailer pages, Reddit, YouTube, and third-party tests shaped the answer alongside the official site.
That changed how I think about AEO/GEO.
Optimizing the website still matters: crawlability, product pages, schema, comparison pages, clear claims, etc.
But for branded AI search, that’s only one layer.
I’d also want to know:
- Which review sites does AI repeatedly cite?
- Do retailer reviews show up?
- Does Reddit show up?
- Are there YouTube tests?
- Which caveats does AI repeat?
- Which attributes does AI assign to competitors instead?
- Where in the funnel does the brand disappear?
My takeaway:
A brand’s website makes claims. Third-party sources make those claims believable. AI seems to use both.
So even on your own branded queries, you don’t fully own the answer. AI assembles owned, earned, and community sources together.
Small caveat: this was 15 queries, two engines, one run each, visible citations only, so I’d treat it as an early signal, not a benchmark.
Anyone else tracking AI visibility seeing the same thing? Do your branded-query answers lean on third-party sources as much as your own site?
6/27/2026 update
Small follow-up: I went back and classified the cited domains after a few people here pointed out the “neutral third-party” problem.
The interesting part: “third-party” was not one category.
In this dataset, the sources Perplexity/ChatGPT cited included:
- vet / health authority sources
- Reddit / community threads
- affiliate review media
- retailer pages
- competitor brand pages
- seller-owned advice blogs
- manufacturer / supplier content
- YouTube videos
- app-store/review signals
So the sharper takeaway for me is:
Third-party does not mean independent.
A brand page has one incentive. But a review roundup, retailer page, competitor blog, manufacturer guide, YouTube video, and Reddit thread all have different incentives too.
I also checked the “advice-style” sources specifically — the ones that look like neutral reviews, comparisons, or guides rather than obvious stores / Reddit / vet pages. Out of 16 advice-style sources, only one had no visible product-commerce incentive I could verify. The rest were affiliate-disclosed, seller-owned, manufacturer-owned, site-level affiliate, or unverifiable/page-changed.
That doesn’t mean those sources are bad or useless. But it does mean AI product answers are not built on a neutral web. They’re built on an incentive map.
This also made me think the audit question shouldn’t just be “which sources does AI cite?” but “what does each cited source want?”