Reddit Is the New SEO: The Data Behind AI Citations

TL;DR Reddit is the #1 cited source in AI-generated answers. Not Wikipedia, not Stack Overflow, not any brand website. If you're building a product and wondering why ChatGPT doesn't mention it — this post explains the mechanic and what to do about it. The shift nobody talks about at standup Ask ChatGPT to recommend a cloud mining platform. Or a project management tool. Or a CI/CD pipeline. There's a solid chance the answer references a Reddit thread. Not a docs page. Not a landing page. A comment from someone who casually mentioned a tool while answering a question. This isn't a bug. It's how retrieval-augmented generation works in practice. LLMs need trusted, structured, recent sources — and Reddit checks all three boxes. Most developers know Reddit is big. Few realize how big it's gotten in the AI citation pipeline. The numbers Metric Value Source Share of all AI citations from Reddit 40.1% Semrush, 150K citations Perplexity answers referencing Reddit 1 in 5 Evertune, 200M+ prompts G