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Robots.txt Generator
Take control of your content. Choose which AI models can train on your data, and which can cite you in AI-powered search results.
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Configure Your Bot Rules
Toggle each bot. Allow = can crawl & cite you. Block = cannot access your site.
Upload this file as robots.txt to your website's root directory, then verify it in Google Search Console.
Why Your Standard Robots.txt Is Failing in 2026
For decades, robots.txt was a simple two-player game: allow Googlebot, block everyone else. In 2026, there are two fundamentally different types of AI crawlers you need to manage separately, and most webmasters are treating them the same.
Training Bots collect your content to improve AI models. When OpenAI's GPTBot reads your articles, your writing becomes part of ChatGPT's future responses, but you receive zero credit, zero traffic, and zero compensation. This is a direct threat to your intellectual property and your SEO moat.
AI Search Bots, in contrast, index your content to answer user questions in real time. When PerplexityBot or OAI-SearchBot crawls your site, they can surface your content as a cited source inside AI-powered search results, driving actual referral traffic back to you. This is the core of GEO (Generative Engine Optimization), the most important SEO shift since mobile-first indexing.
Blocking all AI bots with a single rule destroys your GEO visibility. Allowing all of them gives away your IP for free. The smart strategy is granular control, and that is precisely what this tool gives you.
What is GEO?
Generative Engine Optimization (GEO) is the discipline of optimizing your website to appear as a trusted, cited source inside AI-generated answers, from ChatGPT Search, Google AI Overviews, Perplexity, and Bing Copilot. It is the fastest-growing branch of technical SEO in 2026. See how SEOWebster builds GEO strategies →
Expert Tip, SEOWebster Team
"I built this tool because I watched clients' traffic erode after AI scrapers consumed their best long-form content without attribution. My rule of thumb: Allow OAI-SearchBot and PerplexityBot, they are the bots that send real referral traffic and citations. Block GPTBot, ClaudeBot, and Google-Extended. That is the granular strategy that protects your IP while keeping you visible in AI-powered search."
- Ashan, Founder at SEOWebster
How to Block ChatGPT from Scraping Your Website
OpenAI operates two distinct crawlers with very different implications for your content. Understanding the difference is the first, and most important, step in any modern Web Scraping Policy.
GPTBot is OpenAI's AI training crawler. When it accesses your pages, your writing, product copy, and research are absorbed into future GPT model training datasets. You receive no backlink, no citation, and no traffic. Under emerging copyright frameworks and the EU AI Act, this constitutes commercial use of your intellectual property without consent.
ChatGPT-User is the agent that powers ChatGPT's real-time browsing. Unlike GPTBot, this one can surface your content as a cited source, so whether to block it depends on your GEO strategy.
The correct LLM Crawler management approach is to block GPTBot (the training bot) and allow OAI-SearchBot (the search bot). Here is the optimal robots.txt configuration:
# Block ChatGPT AI Training (no citations, no traffic) User-agent: GPTBot Disallow: / # Block ChatGPT plugin browsing (optional) User-agent: ChatGPT-User Disallow: / # ALLOW: OAI-SearchBot, drives real traffic via ChatGPT Search User-agent: OAI-SearchBot Allow: /
The same principle applies across every major AI company. Google's training crawler is Google-Extended (trains Gemini). Anthropic's training crawler is ClaudeBot. None of these training bots drive traffic, they only harvest Content Protection-worthy material. Blocking them is a zero-SEO-cost decision: Googlebot rankings are completely unaffected.
Use the generator above to configure all these rules in one step, with the correct content protection defaults applied automatically.
Myth: Blocking GPTBot hurts Google rankings
Googlebot (search indexing) and Google-Extended (Gemini AI training) are two entirely separate user-agents. Blocking Google-Extended has zero impact on your position in standard Google Search results. You can safely block all training crawlers without any SEO risk.
Complete AI Bot Reference Guide (2026)
Every major AI company now operates at least two separate crawlers. The table below explains each one's purpose and our recommended robots.txt action for most websites.
| User-Agent | AI Provider | Purpose | SEO Impact | Recommended Action |
|---|---|---|---|---|
| GPTBot | OpenAI | Collects training data for future GPT models | No traffic, IP risk | Block |
| OAI-SearchBot | OpenAI | Powers ChatGPT Search results & real-time citations | High-quality referral traffic | Allow |
| Google-Extended | Trains Gemini AI and Google Bard models | Privacy control, no ranking effect | Block | |
| PerplexityBot | Perplexity AI | Indexes content for Perplexity AI search engine | Fast-growing citation traffic | Allow |
| ClaudeBot | Anthropic | General crawler for Claude AI training & research | Training risk | Block |
| anthropic-ai | Anthropic | Backup Anthropic crawler identifier | Training risk | Block |
| Googlebot | Traditional Google Search indexing | Core SEO rankings | Always Allow | |
| Bingbot | Microsoft | Bing Search & Microsoft Copilot indexing | Bing rankings + Copilot citations | Always Allow |
| Applebot-Extended | Apple | Trains Apple Intelligence & Siri features | Emerging platform | Your Choice |
How to Install Your AI-Optimised Robots.txt
Select your bot rules above
Toggle each AI bot to Allow or Block. Follow the recommended settings in the table above as a starting point, then adjust based on your content strategy and IP protection needs.
Click "Generate Robots.txt"
Your custom robots.txt file will be generated instantly. The output follows the official Web Robots standard and includes proper formatting, comments, and a Crawl-delay directive where applicable.
Upload to your root directory
The file must live at https://yourdomain.com/robots.txt, not in a subfolder. On WordPress, place it in your public_html folder. On Shopify, use the Password-protected robots.txt in the theme editor. On Vercel/Netlify, place it in your public/ directory.
Verify in Google Search Console
Open Google Search Console → Settings → robots.txt. Google will confirm it can read the file. You should also test specific URLs using the URL Inspection Tool to verify crawl access per page.
How to Optimize for AI Search Engines (GEO) with llms.txt
In 2026, a new open standard called llms.txt is gaining traction across the AI community. Pioneered by the team behind fast.ai and now endorsed by a growing list of AI developers, this file functions as a structured, machine-readable guide for LLM agents, telling them which parts of your site contain valuable, citable information vs. internal boilerplate.
Unlike robots.txt, which is a binary allow/block instruction, llms.txt lets you describe your content hierarchy, preferred citation formats, and licensing terms in language that AI agents can parse and respect.
Sites that implement both robots.txt and llms.txt correctly are already seeing improved citation rates in Perplexity, ChatGPT Search, and early GEO benchmarks. This is one of the clearest competitive advantages available in AI SEO today, and most sites have not done it yet.
robots.txt
Access Control
Allows or blocks specific crawlers. Binary instruction. Universally supported for 25+ years. Essential baseline for all websites.
llms.txt (New 2026)
Content Intelligence Layer
Describes your content hierarchy to AI agents. Enables structured citations. Growing adoption. The next-generation GEO standard.
Want the full technical setup including llms.txt implementation? Talk to our GEO team →
Frequently Asked Questions
What is a robots.txt file? + −
Can robots.txt actually block AI training bots like GPTBot? + −
What is the difference between GPTBot and OAI-SearchBot? + −
Will blocking AI bots affect my Google rankings? + −
What is GEO (Generative Engine Optimization)? + −
What is llms.txt and do I need it? + −
How often should I update my robots.txt for AI bots? + −
Glossary of AI Bot & LLM Crawler Terms
A reference guide to key terminology in AI bot management, web scraping policy, and generative search optimisation. The landscape evolves fast, bookmark this page.
- GPTBot OpenAI
- OpenAI's primary web crawling agent used to collect training data for GPT models. Identifiable by the user-agent string
GPTBot. Blocking GPTBot prevents your content from being incorporated into future OpenAI model training. It does not affect ChatGPT Search citations, which are handled by the separate OAI-SearchBot. - LLM Crawler General Term
- A broad term for any web crawler operated by a company that develops Large Language Models (LLMs). LLM crawlers fall into two categories: training crawlers (harvest data to improve models) and AI search crawlers (index content to answer real-time user queries). The distinction determines whether you should allow or block each one in your robots.txt.
- Training Bot Category
- An AI crawler specifically designed to harvest web content for model training purposes. Examples: GPTBot (OpenAI), Google-Extended (Google DeepMind), ClaudeBot (Anthropic). Training bots do not send referral traffic, do not provide citations, and do not improve your search visibility. Most site owners should block them to protect their intellectual property.
- AI Search Bot Category
- An AI crawler that indexes live web content to power real-time AI search results. Examples: OAI-SearchBot (ChatGPT Search), PerplexityBot (Perplexity AI). These bots can surface your content as a cited source in AI-generated answer pages, driving measurable referral traffic back to your site. Allowing AI search bots is a core GEO strategy.
- GEO, Generative Engine Optimization Strategy
- The practice of optimising a website to earn citations and visibility inside AI-generated answers from ChatGPT Search, Google AI Overviews, Perplexity, and Bing Copilot. GEO encompasses robots.txt configuration, llms.txt implementation, structured data markup, topical authority building, and E-E-A-T signals. It is the most significant expansion of technical SEO practice since the mobile-first era.
- Web Scraping Policy Legal / Technical
- A website's formal rules, technical and sometimes legal, governing which automated agents may access its content and for what purpose. A Web Scraping Policy is primarily communicated through robots.txt User-agent directives. Under GDPR, UK GDPR, and the EU AI Act, publishers have the right to opt out of AI training data collection.
- Content Protection Practice
- The combined set of measures, robots.txt rules, llms.txt declarations, and Terms of Service language, that prevent your intellectual property from being used without consent for commercial AI model training. Content protection is distinct from SEO: you can fully protect your content from training crawlers while remaining indexed by all search engines.
- robots.txt Standard, Since 1994
- A plain-text file placed at the root of a website (
yourdomain.com/robots.txt) that communicates crawling permissions to web robots via the Robots Exclusion Standard. Supports User-agent matching, Disallow/Allow directives, Sitemap declarations, and Crawl-delay hints. Honoured by all major search engines and legitimate AI companies. - llms.txt Emerging Standard, 2026
- A proposed open standard placed at
yourdomain.com/llms.txtthat gives AI language model agents a structured, machine-readable guide to a site's content. Unlike the binary allow/block nature of robots.txt, llms.txt can describe content hierarchy, preferred citation formats, and licensing terms. Early adoption is associated with improved AI citation rates in Perplexity and ChatGPT Search. - User-Agent Technical
- A string identifier that a web crawler sends in its HTTP request headers, used to identify the bot's name and origin. In robots.txt,
User-agent: GPTBottargets that specific crawler. The wildcardUser-agent: *applies rules to all crawlers not otherwise specified. Knowing each crawler's exact User-agent string is essential for precise AI bot management.
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