New research from Profound, covering 30 million AI citations (Aug 2024–June 2025), unveils distinct citation habits of three major AI platforms: ChatGPT, Google AI Overviews, and Perplexity. Understanding these behaviors is key to optimizing your content’s visibility in AI-generated answers.

ChatGPT: Wikipedia is Essential

ChatGPT heavily favors Wikipedia, citing it nearly half the time (47.9%). Reddit trails significantly (11.3%), with business and tech media like Forbes, G2, TechRadar, and NerdWallet making smaller appearances.

Key Insight: Ensure your Wikipedia entries are accurate, detailed, and frequently updated. While mainstream media contributes, Wikipedia remains your strongest leverage for ChatGPT visibility.

Google AI Overviews: Diverse Content Wins

Google AI showcases a balanced mix of platforms:

  • Reddit (21%)
  • YouTube (18.8%)
  • Quora (14.3%), LinkedIn (13%)
  • Gartner, Forbes, NerdWallet, Wikipedia (each ~5–7%)

Key Insight: Visibility here depends on diversified content—professional articles (LinkedIn), engaging video (YouTube), and community interaction (Reddit, Quora). A multi-format approach is essential.

Perplexity: Community Content Dominates

Perplexity relies on authentic user-generated platforms:

  • Reddit (46.7%)
  • YouTube (13.9%)
  • Yelp (5.8%), TripAdvisor (4.1%)
  • LinkedIn, Forbes, G2, PCMag, NerdWallet

Key Insight: To gain Perplexity visibility, focus on genuine engagement within Reddit communities, niche review sites, and authentic user discussions.

Domain Strategy: .com Remains Supreme, but Tech TLDs Rising

  • com dominates citations (80.41%)
  • .org (11.29%), primarily due to Wikipedia
  • Country-specific domains (.uk, .au, .ca) (~3.5%)
  • Tech-focused domains (.io, .ai) increasingly influential

Key Insight: .com remains your best bet for broad visibility, but tech and niche sectors may benefit from using .ai or .io.

Strategic Recommendations

  • Tailored Content Strategy: Each AI engine requires a unique approach—generic strategies won’t work across all platforms.
  • Prioritize Wikipedia & Reddit: Wikipedia is crucial for ChatGPT, while Reddit engagement boosts visibility on Google AI and Perplexity.
  • Diversify Formats: Particularly for Google AI, blend videos, discussion threads, blogs, and professional insights.
  • Domain Awareness: Stick primarily with .com, but strategically utilize tech-friendly domains (.ai, .io) when targeting niche or tech-savvy audiences.

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