Does anyone remember when Google first introduced AI-generated answers to its search results? In May 2024, Google's AI Overviews made headlines for telling people to eat rocks and suggesting non-toxic glue to make cheese stick to pizza.
The pizza advice came from an old Reddit joke, while the recommendation to eat rocks originated from satirical content. Google's AI had failed to recognise the difference between a serious answer and something written as a joke.
AI search has matured since then, and Reddit’s role has grown into something genuinely useful for generative answers. For e-commerce brands, the conversations taking place there could influence what customers discover and ultimately buy.
Reddit is full of firsthand human experiences where people share opinions, recommend products, and ask questions. AI is watching because it feeds on that authenticity. For e-commerce brands, this means customer decisions are being led by conversations off-site.
According to research from Peec AI, Reddit ranked first or second among the most-cited domains across five major AI search platforms in March 2026.
A large language model will choose to reference a real human interaction, and if your or your competitor’s product appears there, it’s the kind of testimonial worth paying attention to.
Why does AI go to Reddit?
Reddit is a centre of conversational human content. Across thousands of niche communities, people discuss everything from skincare routines and running shoes to software, technology and everyday problems. Experts, enthusiasts and ordinary customers share experiences, challenge opinions and offer recommendations.
It's a hub for the internet, famously describing itself as the front page of the internet.
What makes Reddit particularly useful is the depth of insight inside these conversations. A product page might tell you that a pair of running shoes offers excellent comfort and durability. That’s what the ad says.
Once you search Reddit discussions, you‘ll probably find testimonials that tell you how those shoes actually feel after six months of use and if there are competitors that are just as good for half the price. Even if a product has reviews on its own site, people tend to respond at a more recent, surface level.
It's information that often goes beyond what a brand says on its product page. It’s word of mouth without boundaries. There’s a level of trust you only get from someone who is unbiased, in so far as they aren’t paid to say something.
While people may not always be accurate, they offer something different from polished marketing content: firsthand perspectives, competing opinions and answers to very specific questions.
There's also a direct relationship between Reddit and major AI companies. In 2024, Reddit announced partnerships with Google and OpenAI, giving these companies structured access to Reddit content for uses including AI products and model development.
Reddit isn't just appearing in AI search by coincidence. Its conversations have become a valuable source of information.
How does a Reddit thread end up in an AI answer?
Large language models (LLMs) learn patterns in language and information from enormous amounts of training data. Reddit's conversations can contribute to that process, helping models learn from the way people naturally ask questions, explain problems and express opinions.
But there's another way Reddit becomes relevant. Rather than relying only on information learned during training, AI-powered search tools can retrieve information from the web as someone asks a question.
Imagine asking ChatGPT: What's the best running shoe for someone with wide feet?
Likely, someone has been in your shoes at some point and asked a similar question. AI could then find comparisons and firsthand experiences that help inform its answer. A Reddit conversation can become part of a customer's research without that customer ever visiting Reddit themselves.
If people are recommending your products, those discussions could influence how AI presents your brand. Equally, repeated complaints about poor quality, delivery or customer service could shape the information a shopper encounters.
The opportunity isn't necessarily about getting someone to click through from Reddit to your website. It's about appearing in the conversation while a customer is deciding what to buy.
Therein lies the huge implication for e-commerce.
How often do AI search tools cite Reddit?
Reddit's influence isn't just anecdotal.
In March 2026, Peec AI analysed 30 million cited sources across ChatGPT, Gemini, Perplexity, Google AI Mode and Google AI Overviews in the United States.
The findings were significant:
- Reddit was the most-cited domain overall across the five platforms.
- It ranked either first or second among cited domains on every platform analysed.
- YouTube, LinkedIn, Wikipedia and Forbes completed the overall top five.
But AI search is changing quickly, and the platforms don't all behave the same way.
In August 2026, Promptwatch reported that Reddit's share of ChatGPT Search citations had fallen from an average of 3.83% in late July and early August to 0.52% between August 14 and 17. That's an 86% relative drop in its monitored sample.
Reddit's visibility in Google's AI search products declined far less dramatically during the same period. So while Reddit remains an important source, brands shouldn't assume it will always receive the same level of attention from every AI platform.
According to Adobe Digital Insights, AI-referred traffic to US retail websites grew 393% year on year in the first quarter of 2026. In March, those visitors converted 42% better than visitors from non-AI sources.
How to inspire your product pages
While Reddit wasn’t necessarily responsible for all of those sales, the above data suggests product pages and structured information matter even more than before. As AI search tools synthesise recommendations from third-party discussions alongside brand sites, connecting community sentiment with optimised product pages becomes essential for successful Generative Engine Optimisation (GEO).
This combination of off-site analysis and on-site optimisation is exactly what we at Kooba obsess over. Our GEO reports help optimise product or service landing pages in response to how your product, company, competition and more turn up in relevant queries everywhere else online.
What can brands do with this information?
For brands, the answer isn't necessarily to start posting on Reddit every day. Communities are built around shared interests, discussion and trust. Turning up trying to sell something misses the point of why people go there for advice in the first place. Reddit can provide real learnings where people talk naturally about anything and everything.
Listen to the conversations already happening
Look at what people are really saying about your brand and your competitors. What questions keep appearing? What frustrates customers? Which products are regularly recommended, and why?
If people repeatedly complain about confusing information, for example, that might be an opportunity to improve your website's product pages, sizing guides or overall user experience.
Give people something worth recommending
You can't force people to recommend your products, but you can give them good reasons to.
Take on board how products meet expectations, what people appreciate, like clear information, and anything else that contributes to the experiences people share online.
Brands can also participate directly in relevant communities, provided they're transparent about who they are and contribute something genuinely useful. However, this misses what makes Reddit insights unique.
Look beyond your own website
Traditional SEO has largely focused on making your website more visible in search results.
Generative Engine Optimisation (GEO) adds another consideration: how your brand is represented in the information AI tools retrieve and use.
That includes your own website, but potentially also Reddit discussions, independent reviews, comparison websites and other third-party sources.
For e-commerce brands, it means thinking about visibility beyond the content they directly control. Try researching the questions your customers might ask ChatGPT or Google AI Overviews. Look at which brands appear, what sources are cited and whether the information about your business is accurate.
You can’t rely on Reddit alone. As the 2026 research shows, AI platforms can change their source preferences surprisingly quickly.
A word of caution
Reddit might be full of real human experiences, but humans are unreliable.
Opinions can be biased, and popular answers aren't necessarily accurate. Just because an AI tool references a Reddit conversation doesn't mean the information has been verified.
There's also no guarantee that positive Reddit discussions will lead to better AI visibility. As the research shows, different platforms favour different sources, and those preferences can change.
For brands, the lesson isn't to try to influence every conversation or chase AI citations. Your best bet is to build genuine credibility by understanding what customers are saying.
Beyond the front page of the internet
Reddit's value to AI comes from something brands can't simply manufacture: years of human conversations about real experiences.
Your website remains central to how you present your products and services. But customers may increasingly encounter your brand through AI-generated answers shaped by conversations happening elsewhere.
You can't control every conversation about your business. What you can do is listen, then give customers something positive to talk about. Because as AI changes the way people research purchases, what people say about your brand could matter just as much as what you say about yourself.
