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Learn AI optimization
Plain-English guides to how AI search works and how to show up in it. No jargon walls, and the answer always comes first. Tool-shopping instead? Start with our comparison of the best free AI visibility checkers.
AIO vs AEO vs GEO vs LLMO, explained
Four acronyms, one discipline. What AIO, AEO, GEO, and LLMO each mean, where they genuinely differ, and why the on-page work is about 90% identical.
Read the guide →How AI crawlers read your site
The five AI crawlers that decide your AI visibility, what each one feeds, how they read your robots.txt, and the firewall layer most sites forget.
Read the guide →How to get cited by ChatGPT
What the 1.4M-prompt citation research says actually gets pages cited by ChatGPT: retrievability, titles that match sub-queries, and answer-first writing.
Read the guide →What is AIO in SEO?
AIO (AI optimization) is the practice of making your website readable, understandable, and citable by AI systems like ChatGPT. Here's what the work involves.
Read the guide →Is llms.txt worth it?
llms.txt promises to guide AI systems to your content. Log studies across 137,000 domains show nothing reads it. The evidence, and what to do instead.
Read the guide →How to optimize for Google AI Overviews
AI Overviews cite pages that already rank: 38% of citations come from the top 10. How Google picks sources, and the on-page work that earns the citation.
Read the guide →What is AEO?
Answer engine optimization is the work of becoming the single answer AI assistants give. What AEO involves, what the research supports, and how to start.
Read the guide →What is GEO?
Generative engine optimization is visibility work for AI search surfaces like AI Overviews and ChatGPT search. What GEO is, what works, and what's grift.
Read the guide →What is LLMO?
LLMO is the work of being known to and retrievable by large language models. What it means, how training and retrieval differ, and what actually works.
Read the guide →How many websites block AI crawlers? We scanned the top 1,500 to find out
We scanned the web's top 1,500 domains: 22% block at least one major AI crawler, the biggest sites block twice as often, and 45% score a D or F on AI readiness.
Read the guide →Are AI crawlers like GPTBot blocked by default?
Not by robots.txt, where no rule means allowed. But Cloudflare has blocked AI crawlers by default on new domains since July 2025, and WAF presets add more.
Read the guide →Does LinkedIn block AI crawlers? Yes, all five, by name
LinkedIn names and blocks GPTBot, ClaudeBot, PerplexityBot, CCBot, and Google-Extended in robots.txt, and firewalls AI user agents. Here is our scan data.
Read the guide →Is AIOScan legit? Verify everything yourself
Yes, and you don't have to take our word for it. Every check, weight, and study behind AIOScan is published so you can verify the scanner yourself.
Read the guide →The most AI-ready websites: our top 10 scorers
The 10 highest-scoring sites from our 1,500-domain AI-readiness scan, what they all share, and why brand size predicts nothing about AI visibility.
Read the guide →What is an AI score?
An AI score estimates how visible your site is to AI search. The two families of score, what a trustworthy one looks like, and how to benchmark yours.
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