How ChatGPT, Perplexity, Gemini and Google AI Overviews select sources

Each AI search engine has its own method for finding, evaluating and citing content. Understanding these differences is essential for GEO because the content that gets cited by Perplexity may differ from what Google AI Overviews prefers. This lesson breaks down each platform so you can optimise your Wix content to be cited across all of them.

Google AI Overviews

Google AI Overviews are powered by Gemini and appear directly in Google search results. They draw heavily from pages that already rank well organically. If your Wix page ranks in the top 10 for a query, it has a strong chance of being cited in the AI Overview for that same query. This is the strongest link between traditional SEO and GEO: pages that rank well organically are the primary source pool for AI Overviews.

• AI Overviews primarily cite pages already ranking in the top 10 organic results
• Pages with clear, factual answers in the first paragraph are preferred
• Structured data (FAQ schema, HowTo schema) increases the chance of citation
• Pages with strong E-E-A-T signals are cited more often for YMYL queries
• Content freshness matters: recently updated pages with dateModified schema are preferred

ChatGPT Search

ChatGPT Search uses Bing as its primary search index and supplements with its own web browsing capability. When a user asks a question, ChatGPT searches the web in real-time, reads multiple pages, and synthesises an answer with inline citations. Unlike Google AI Overviews, ChatGPT Search does not rely on existing organic rankings as heavily. Content quality, directness and factual accuracy carry more weight.

• Uses Bing index: ensure your Wix site is indexed in Bing Webmaster Tools
• Prioritises content with direct, extractable answers to specific questions
• Cites sources with clear author attribution and credentials
• Prefers content with verifiable data: statistics, studies, named sources
• Well-structured content with clear headings performs significantly better

Perplexity

Perplexity operates as an answer engine with its own web crawler (PerplexityBot). It crawls the web independently and builds its own index. Perplexity is particularly citation-heavy, often referencing 5 to 15 sources per answer. It values comprehensiveness, accuracy and domain authority. Pages that cover a topic thoroughly and cite their own sources are favoured.

• Has its own web crawler (PerplexityBot): check your robots.txt is not blocking it
• Values comprehensive, detailed content that covers a topic in depth
• Strongly prefers content that itself cites reputable sources and data
• Domain authority and brand recognition influence citation frequency
• FAQ-structured content is frequently cited for question-based queries

Google Gemini

Google Gemini, the standalone AI assistant, integrates with Google Search results and Google Knowledge Graph. It draws from the same source pool as AI Overviews but also has access to broader web content. Gemini tends to cite authoritative, well-known sources and is particularly influenced by entity signals: recognised brands, verified authors and schema-marked content.

Common Patterns Across All AI Engines

Action items for your Wix site

• Submit your Wix sitemap to both Google Search Console and Bing Webmaster Tools
• Check your robots.txt is not blocking PerplexityBot, GPTBot or other AI crawlers
• Add a direct, complete answer to the primary question in the first paragraph of every key page
• Add Person and Organization schema with verified credentials
• Update your most important pages with fresh content and set dateModified in schema

Complete How-To Guide: Optimising Your Wix Content for Every AI Search Platform

This guide covers platform-specific optimisations for Google AI Overviews, ChatGPT Search, Perplexity and Gemini, ensuring your Wix content is citable across all AI engines.

How to optimise your Wix site for citation across all AI platforms

• Step 1: Submit your Wix sitemap to Google Search Console at search.google.com/search-console. Verify your property and confirm all important pages are indexed. This is the foundation for Google AI Overviews.
• Step 2: Submit your Wix sitemap to Bing Webmaster Tools at bing.com/webmasters. Add your site, verify ownership, and submit your XML sitemap. This enables visibility in ChatGPT Search.
• Step 3: Check your robots.txt file. Open yourdomain.com/robots.txt and verify there are no Disallow rules for GPTBot, PerplexityBot, ClaudeBot or Googlebot. If any are blocked, update via Wix Dashboard under Settings then SEO then robots.txt.
• Step 4: For Google AI Overviews, focus on pages already ranking in the top 10. Restructure these pages with BLUF formatting: place a direct answer in the first paragraph after the H1.
• Step 5: For ChatGPT Search, add clear author attribution to every content page. Include the author name, credentials, and a link to the author page. ChatGPT weights authoritative, attributed content heavily.
• Step 6: For Perplexity, ensure your content is comprehensive and cites its own sources. Add references to industry reports, studies and primary data within your content. Perplexity values content that demonstrates research rigour.
• Step 7: For Google Gemini, strengthen your entity signals. Add Organization and Person schema with sameAs properties linking to verified profiles. Gemini draws heavily from the Knowledge Graph.
• Step 8: Add structured data to every key page: Article schema with datePublished and dateModified, FAQ schema for question sections, and HowTo schema for step-by-step guides.
• Step 9: Include verifiable statistics and data points throughout your content. Format them as: "According to [Source], [specific number/percentage]". AI engines extract and cite specific data points.

Essential Resources

• Perplexity AI: Test how AI search engines discover and cite your content
• ChatGPT: Test your brand visibility in ChatGPT responses
• Google AI Overviews: Google documentation on AI Overviews in search results
• Bing Webmaster Tools: Monitor your site visibility for Bing and connected AI engines

Finalising your AI platform optimisation

• Step 10: Create a comprehensive FAQ section on your most important pages. Use the question as an H3 heading and provide a direct 1-2 sentence answer before elaborating. Add FAQPage schema markup.
• Step 11: Update your top 10 pages with fresh content and set dateModified in your schema to the current date. AI engines across all platforms prefer recently updated content.
• Step 12: Test your optimisations by searching your target queries across all four platforms weekly. Record which platform cites you and which content is referenced. Adjust your strategy based on which platform-specific tactics generate the most citations.

Essential Resources

• Bing Webmaster Tools: Submit your Wix sitemap to Bing which powers ChatGPT Search results
• Google Search Console: Monitor how Google indexes content used in AI Overviews
• Schema.org: Structured data vocabulary used by all major AI engines for content extraction
• SEO Fix in a Box: My Wix app. Free to install, it scans your site and shows what needs fixing, and paid plans write the fixes from your own Google searches