Generative Engine Optimization

Allow AI Crawlers Access — Step-by-Step Guide

Verify robots.txt isn't blocking AI bots. Check CDN settings. Confirm in server logs that AI crawlers reach your content.

Easy Critical Impact 15 min Online Local Hybrid
Pro Tip

There are two types of AI bots: retrieval bots (ChatGPT-User, PerplexityBot) that cite your content to users, and training bots (GPTBot, Google-Extended) that use your content for model training. Allow retrieval bots — blocking them means blocking AI citations of your brand.

Warning

Cloudflare's "Bot Fight Mode" and "Super Bot Fight Mode" may block AI crawlers without your knowledge. Check Cloudflare > Security > Bots and add exceptions for AI retrieval bots you want to allow.

Step-by-Step Guide

1

Review your current robots.txt

Visit yourdomain.com/robots.txt and check for any User-agent rules that might block AI bots. Common AI bot names: ChatGPT-User, GPTBot, PerplexityBot, ClaudeBot, Google-Extended, Amazonbot, anthropic-ai.

2

Distinguish between AI training bots and retrieval bots

Retrieval bots (ALLOW these — they cite you): ChatGPT-User (used when ChatGPT browses the web), PerplexityBot, Googlebot (also powers AI Overviews). Training bots (OPTIONAL to block): GPTBot (OpenAI training), Google-Extended (Gemini training), CCBot.

3

Allow retrieval bots (they drive AI citations to your site)

If your robots.txt has blanket "Disallow: /" rules for unknown bots, add explicit Allow rules for retrieval bots. Example: "User-agent: ChatGPT-User\nAllow: /" and "User-agent: PerplexityBot\nAllow: /".

4

Optionally block training bots if you don't want content used for training

If you prefer your content not be used for AI model training, add: "User-agent: GPTBot\nDisallow: /" and "User-agent: Google-Extended\nDisallow: /". This is a business decision with no SEO impact.

5

Check Cloudflare/CDN settings — they may auto-block AI bots

Log into Cloudflare > Security > Bots. Check if "Bot Fight Mode" is enabled. If so, AI bots may be getting blocked at the CDN level even though your robots.txt allows them. Add firewall rules to allow specific AI bot user agents.

6

Verify in server logs that AI crawlers are reaching your content

Check your server access logs for AI bot user agents. Search for "ChatGPT-User", "PerplexityBot", "ClaudeBot" in your logs. If they're returning 403 or are absent entirely, something is blocking them (firewall, WAF, rate limiting).

Video Tutorial

AI Prompt

Review my robots.txt for AI crawler access:

[PASTE YOUR ROBOTS.TXT]

Check if these AI bots are allowed or blocked:
1. ChatGPT-User (OpenAI's retrieval bot)
2. GPTBot (OpenAI's training bot)
3. PerplexityBot
4. ClaudeBot (Anthropic)
5. Google-Extended (Google AI training)
6. Googlebot (regular search + AI Overviews)
7. Bingbot (regular search + Copilot)

For each, state if it's ALLOWED or BLOCKED.
Recommend which to allow (retrieval) vs. optionally block (training).
Generate an updated robots.txt with proper AI bot handling.

Tools & Resources

Robots.txt ValidatorCloudflare Dashboard

Learn More

Optimizing for AI Crawlers — Interrupt MediaarticleRobots.txt Specifications — Googleofficial

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