Who Gets Cited Most By Ai Search Engines

• Across the largest independent datasets, a small group of domains takes most of the citation share.
• Why does Reddit show up so often in AI citations?
• How do YouTube videos feed into AI citations?
• Why do citation rankings vary between studies?
• Which publication types get cited most, and how does query type change it? For instance, according to Peec AI's analysis of 30 million sources across ChatGPT, Google AI Mode, Gemini, Perplexity, and AI Overviews in the US, the top 10 most-cited domains in AI search are Reddit, YouTube, LinkedIn, Wikipedia, Forbes, G2, Yelp, Facebook, Medium, and TechRadar.

Across the largest independent datasets, a small group of domains takes most of the citation share. According to Everything-PR's AI Citation Statistics 2026, the most-cited domains are Reddit, Wikipedia, YouTube, LinkedIn and Forbes, and the top 15 domains account for roughly 68% of consolidated citation share. Peec AI's review of 30 million sources reaches a similar top group, listing Reddit, YouTube, LinkedIn, Wikipedia, Forbes, G2, Yelp, Facebook, Medium and TechRadar. The concentration matters more than any single rank. A brand outside that top tier competes for the remaining share, and that share is narrow.

Ranks come from different question sets, so read them as directional rather than absolute. According to Peec AI, Reddit was either the #1 or #2 most-cited source for every LLM tested.

No. Platform choice changes the answer more than almost any other variable. Peec AI reports that AI Mode and AI Overviews lean toward social content such as Facebook and Yelp, while ChatGPT leans toward editorial sources such as Forbes and TechRadar. Wikipedia appears strongly for ChatGPT and Perplexity but not for Google's platforms. G2 appears only for Perplexity in that study. A brand that optimizes for one engine can be invisible on another, so citation tracking has to be run per platform rather than averaged.

Platform behavior can shift between releases; re-check before acting on any single snapshot. According to Peec AI, Reddit and YouTube appear among the top sources across all five platforms studied, while Wikipedia appears strongly for ChatGPT and Perplexity but not for Google's platforms, and G2 appears only for Perplexity.

Why does Reddit show up so often in AI citations? Reddit is the most consistent citation across studies because it contains the unscripted, comparative language that answer engines use to test a claim. According to Peec AI, Reddit was either the number one or number two most-cited source for every LLM it tested. The practical question is how a brand engages on Reddit without spamming. Answer engines tend to reward threads where a company representative does the following:

• Discloses affiliation openly in the post
• Answers a specific question with a verifiable detail
• Links back to a documented page that supports the claim

Specifically, a thread that only promotes a product is unlikely to be cited. Such threads can also damage the brand's standing with the Reddit community, so disclosure and substance matter more than promotion.

How do YouTube videos feed into AI citations? YouTube's influence runs through more than the main channel. According to Peec AI, AI platforms cite YouTube Shorts and YouTube Music pages as well as standard videos. Peec AI also reports that these platforms draw on both video descriptions and auto-generated transcripts.

According to RankSpot's AI Citation Index, YouTube appears in 22.4% of Google AI Overviews answers compared with 0.9% of ChatGPT answers, so video is a Google-facing lever. The working implication is that accurate descriptions and clean transcripts make a YouTube video retrievable as text, even when the visuals go unread.

Why do citation rankings vary between studies? Citation rankings vary mainly because each study uses a different question mix. According to RankSpot, Wikipedia ranks 76th and appears in 0.7% of ChatGPT answers in its index, since its prompts cover commercial, product-buying queries rather than definitions.

Wikipedia's high share in other datasets reflects definitional questions. Source classification also distorts totals. According to the Machine Relations Index, 87% of cited domains (32,102 of 36,722) have no source-type classification.

Any percentage for editorial versus brand sources therefore depends heavily on how that unclassified remainder is handled. Compare studies only after checking their prompt sets and classification rules.

Which publication types get cited most, and how does query type change it? Brand and company sites are cited most in aggregate. According to 5WPR, company and brand sites supplied 49.7% of four-engine citations, against 19.3% for review and comparison publishers and 10.2% for general news media.

Editorial outlets dominate specific categories. According to the Machine Relations Index, Forbes ranks first among 1,388 classified editorial publications with 1,264 cited runs. However, in 11 of 23 categories with a named leader, the most-cited editorial publication sits outside the overall editorial top ten.

Query type matters as well. A buyer asking for product recommendations is more likely to surface review sites, while a definitional question pulls encyclopedic and editorial sources. Map your target prompts by intent before deciding where to earn coverage.

The brands that earn citations publish documented, specific claims on pages a model can parse, and they appear in the third-party sources their category already trusts. Fastlook's Brand Memory structures a site's facts into a source of truth AI engines can read, and its Citation Analytics shows where a brand appears across engines, so teams can see which source types are carrying their visibility. None of this guarantees a citation. Engines weigh many signals, and a brand absent from the category's reviewed sources will struggle however clean its own site is.

The specific figures and claims on this page are grounded in the following sources, reviewed at the time of writing:

• AI search engines cite Reddit, YouTube, and LinkedIn most: Study
• How to get cited by AI: SEO insights from 8,000 AI citations
• Top domains cited by AI search: Analysis based on 30M sources - Peec AI
• AI Citation Statistics 2026: The 50 Most-Cited Websites
• State of AI Citations 2026: Who AI Engines Cite
• Which Publications Get Cited Most by AI Search Engines

Related guides

• How ChatGPT Chooses What to Cite in 2026
• Schema Markup for AI Search Engines: Implementation Guide
• How to Get Cited by AI Answer Engines: Complete Guide
• AI Search Engines List 2024, Rank & Get Cited
• Ranking in AI Search Engines for Creators: The Complete