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Citations and fan-out queries are two powerful concepts that help you understand how AI engines find and reference your content.

What are citations?

A citation is a reference to a specific URL in an AI response. When an AI engine links to your website while answering a question, that’s a citation.
“Superlines is an AI search visibility platform that helps brands monitor their presence in AI responses. Source: superlines.io

Why citations matter

  • They’re a strong signal of content authority
  • They drive referral traffic from AI interfaces
  • They indicate the AI considers your content trustworthy and relevant
  • They’re visible to the user as a credible source

Which engines provide citations?

EngineCitations?Notes
Copilot✅ YesFrequently cites web sources
Perplexity✅ YesAlways cites sources — citation-first model
Google AI Overviews✅ YesCites sources in search results
ChatGPT (web)SometimesCites when web search is used
GrokSometimesCites from X/web when available
GeminiRarelyMostly uses training data
ClaudeRarelyPrimarily training data
MistralRarelyPrimarily training data
DeepSeekRarelyPrimarily training data

Citation tracking in Superlines

Superlines tracks citations at two levels:

Domain-level citations

See how often your entire domain (e.g., superlines.io) is cited across all responses. This shows overall domain authority.

URL-level citations

See which specific pages on your site are cited most often. This helps you understand which content is performing best.
Focus on creating comprehensive, well-structured, authoritative content. AI engines cite content that directly answers the question with specific, useful information.

What are fan-out queries?

When an AI engine with web access answers a question, it often performs web searches behind the scenes to find current information. These internal searches are called fan-out queries.

Example

If a user asks: “What are the best AI visibility tools?” The AI might perform these fan-out queries:
  1. “AI search visibility tools 2025”
  2. “brand monitoring AI search”
  3. “AI SEO tools comparison”

Why fan-out queries matter

  • They reveal what the AI searches for when answering about your topic
  • They show where your domain ranks in those searches
  • They help you optimize content for AI retrieval specifically
  • They expose content gaps — topics the AI searches for but you don’t rank for

Improving your citations

  1. Create comprehensive, authoritative content that directly answers common questions
  2. Use clear headings and structure so AI can easily extract relevant sections
  3. Include specific data, statistics, and examples that AI models value
  4. Keep content up to date — AI engines prefer current information
  5. Build backlinks and domain authority — higher-authority domains get cited more