Discover which publications, websites, and domains each AI model relies on in your category — and see exactly which sources your competitors are covered in that you're not.
Run Your Source Gap Analysis →When you ask ChatGPT to recommend a product, it doesn't search the entire web equally. It retrieves from sources it has indexed and trusts — and those sources vary significantly by product category. A skincare brand's trusted sources are completely different from a furniture brand's trusted sources.
Without knowing which sources AI models trust in your category, your GEO strategy is guesswork. Estran's source intelligence maps give you a ranked list of the exact domains each LLM references when answering queries about your product type.
Estran identifies the top 20–50 sources each LLM references when answering product queries in your category — ranked by citation frequency.
See which of those top sources already feature your competitors — and which sources you're absent from while competitors have coverage.
Estran ranks your source gaps by impact — so your PR, content, and outreach efforts are focused on the sources that will actually move your AI visibility score.
A candle brand runs a source gap analysis in Estran. The results show that ChatGPT most commonly cites 5 home decor publications and 3 Reddit subreddits when recommending candles. Their top competitor is featured in 4 of those 5 publications, while the brand is only featured in 1.
Estran's action plan shows exactly which 3 publications to target for press coverage and which Reddit communities to engage in — with estimated visibility impact for each. The brand focuses outreach on the two highest-impact publications, gets featured in both within 60 days, and sees a 2.4x increase in ChatGPT brand mentions.
Find out exactly which sources AI trusts in your category — free to start.
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