technical seo
AI Visibility Basics: What ChatGPT Crawlers Need
Robots.txt rules written years ago to block scrapers can silently block GPTBot, PerplexityBot, and ClaudeBot too. Here is how to check, and what still matters once access is confirmed.
Dhanish Buhari · Founder, PrismSEO · Published: 2026-07-03
AI crawlers are not Googlebot with a different name
Many teams assume that if Googlebot can reach a page, ChatGPT, Perplexity, and other AI assistants can too. In practice these are separate user agents — GPTBot, PerplexityBot, ClaudeBot, Google-Extended — each with its own crawl behavior and its own line in robots.txt. A blanket disallow rule written years ago to keep out scrapers can quietly block all of them at once.
Check your actual robots.txt, not what you remember it saying
Open yoursite.com/robots.txt directly and read every user-agent block. If there's a wildcard disallow with no specific allowance for the AI agents you want indexing you, that's the fix — not a content rewrite. PrismSEO's AI robots.txt checker flags exactly this pattern, and the robots.txt generator produces a clean file with explicit per-agent rules.
Structure still matters once access is confirmed
Once a crawler can reach a page, extraction quality depends on what it always has: a clear H1, H2s phrased the way someone would actually ask the question, and a direct answer near the top of the section instead of three paragraphs of preamble first. Google's developer documentation on AI features is a useful baseline for extraction mechanics even though it's written specifically for AI Overviews. Google's Search Central YouTube channel also covers crawling and indexing basics in video form if that's a faster way for your team to get aligned than reading the spec.
What crawler access doesn't fix
Confirming access doesn't guarantee citation. Being crawlable is a prerequisite, not a ranking factor — the content still has to be accurate, specific, and worth quoting over a competitor's page on the same topic. If you're building out the publishing side of this beyond a single audit, the outbound engine playbook covers the connected workflow.