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AI Crawler Blocker Generator

Allow or block GPTBot, ClaudeBot, PerplexityBot, Google-Extended and more — grouped by what they actually do, so you don't accidentally block yourself out of AI search citations while trying to opt out of training.

Path scope: (default "/" applies to your whole site)
🎓 Training crawlers
Bulk-collect content for future model training. Blocking these is a content-rights decision — it has no effect on whether your site appears in today's AI answers.
🔍 Search & retrieval crawlers
Build the live index AI answers cite from right now. Blocking these removes you from that engine's AI-generated answers immediately.
👤 User-triggered fetchers
Fetch one specific page live because a human asked the assistant about it. Blocking these breaks a user's explicit request.

      

Why this AI crawler tool is different

Most "block AI bots" tools give you one big list and let you toggle each one blindly. This one tells you what each toggle actually does.

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Grouped by real behavior

Training, search/retrieval, and user-triggered crawlers are shown separately, because blocking each has a completely different effect.

Sensible default preset

One click applies the most common real-world policy: opt out of training, stay visible in AI search citations.

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Compliance warnings

Flags crawlers with a documented history of ignoring robots.txt, so you know to add a server-level rule too.

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Vendor-grouped output

Generated robots.txt block is organized by company with comments, not a flat unreadable list.

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Custom path scope

Apply your rules to the whole site or a specific folder, like /premium-content/, in one field.

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100% client-side

Nothing about your policy choices is sent anywhere. The output is yours to paste into your own robots.txt.

How it compares

A side-by-side look at other AI bot blocking approaches.

Feature SEOTriggers Static blog-post snippets SEO plugin toggles CDN "Block AI Bots" switch
Explains training vs search vs user impactRarely
Granular per-bot controlManual copy-pasteOften one switchOne switch
Compliance/enforcement warnings
Custom path scopingManual edit
Free, no signupOften paidRequires CDN account

Frequently asked questions

Will blocking AI training crawlers hurt my Google rankings?
No. GPTBot, ClaudeBot, and Google-Extended are separate from Googlebot and Bingbot, which handle regular search indexing. Blocking AI training crawlers has no effect on your position in Google or Bing search results.
What is the difference between blocking a training bot and a search bot?
Training bots like GPTBot and ClaudeBot bulk-collect content to improve future model versions; blocking them is a content-rights decision with no effect on visibility. Search and retrieval bots like OAI-SearchBot and PerplexityBot build the index that AI answers cite from right now; blocking them removes your content from that engine's AI-generated answers immediately.
Does robots.txt actually stop AI crawlers from accessing my content?
For crawlers that honor robots.txt — which most major AI companies say they do — yes. But it's an honor system, not enforcement. Bytespider and some stealth crawlers have documented histories of ignoring robots.txt, so blocking those reliably requires a server or CDN/WAF-level rule in addition to robots.txt.
Should I block all AI crawlers by default?
Usually not. Blocking search and user-triggered crawlers like OAI-SearchBot, PerplexityBot, and ChatGPT-User removes you entirely from AI-generated answers and citations, which is the fastest-growing discovery channel for many sites. Most site owners want to block only pure training crawlers, if anything.
Do I need to update this robots.txt block regularly?
Yes. New AI crawlers appear a few times a year, and vendors occasionally rename or split existing ones. Review your AI crawler rules roughly quarterly to make sure the list still matches current vendor documentation.

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