What is GEO Optimization (Generative Engine Optimization)?

GEO Optimization (Generative Engine Optimization) is the targeted adaptation of web content so that AI-based search systems like ChatGPT, Perplexity AI and Google Gemini recognize the page as a trustworthy source and cite it in their answers.

How does the snaff.ai GEO Checker work?

The snaff.ai GEO Checker analyzes a URL for over 30 GEO signals: AI bot access in robots.txt, llms.txt, ai.txt, Schema.org JSON-LD (Organization, FAQPage, Article), E-E-A-T signals, semantic HTML and citability. The result is a weighted score from 0-100.

What is llms.txt and why does it matter?

llms.txt is a new file in the root directory of a website that provides language models (LLMs) with a structured summary of the website in Markdown. AI systems can use it to immediately understand the context of a brand without parsing the entire HTML.

Which AI bots should I allow in robots.txt?

The most important AI bots are: GPTBot and OAI-SearchBot (OpenAI/ChatGPT), ClaudeBot and anthropic-ai (Anthropic/Claude), Google-Extended (Google Gemini Training), PerplexityBot (Perplexity AI), Bingbot (Bing/Copilot) and Applebot-Extended (Apple Intelligence). All should be allowed with Allow: / in robots.txt.

What is the difference between SEO and GEO?

SEO (Search Engine Optimization) optimizes websites for classic search engines like Google that show blue links in result lists. GEO (Generative Engine Optimization) optimizes for AI systems that generate direct answers while citing sources. GEO focuses more on structured data, citability, E-E-A-T and AI bot access.

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snaff.ai · Whitepaper

The State of AI & SEO Readiness on the Web

What holds websites back from being found and cited by AI search engines like ChatGPT, Perplexity and Gemini — and where the typical site needs to improve.

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insights

summarize Executive summary

The figures below summarize the average state of the analyzed websites — how ready pages are today for classic search and for AI answers.

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websites analyzed

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avg GEO score

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avg on-page SEO

report The biggest gaps

These are the things the typical website most often gets wrong. The higher the bar, the more sites fail it — and each one costs visibility in AI answers.

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donut_small Where the average site is weakest

By topic area: the share of checks the average site passes. The lowest areas are the biggest opportunities.

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lightbulb Key takeaways

How does your website compare?

These averages are only the start. Check your own domain in seconds — for free — and see exactly what you are missing.

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The State of AI & SEO Readiness on the Web

summarize Executive summary

report The biggest gaps

donut_small Where the average site is weakest

lightbulb Key takeaways

How does your website compare?

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