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ALTREPO/Developer/ROBOTS.TXT GENERATOR, VALIDATOR & AI BOT BLOCKER

Robots.txt Generator, Validator & AI Bot Blocker

Build a clean robots.txt, paste an existing file to validate it, test URLs against real matching rules, and check whether a companion llms.txt has the expected Markdown structure.

1. Build Rules

Start with a sane policy, then add custom path rules below.
Blocks GPTBot, Google-Extended, ClaudeBot, CCBot, PerplexityBot, Bytespider, and more.

2. Generated Output & Tester

Test a URL

3. Validation & AI Crawler Audit

    4. llms.txt Check

    Paste an existing llms.txt to check the basic llmstxt.org structure. Use the dedicated generator for full setup.
    Open Generator
      Robots.txt Architecture Diagram showing Good Bots and AI Scrapers interacting with a Robots.txt gatekeeper. Googlebot Search Indexer GPTBot AI Scraper robots.txt Your Site Allow Block
      The robots.txt file acts as a gatekeeper for your website.
      It allows legitimate search engines to index your content while blocking aggressive AI scrapers.

      How to create a robots.txt file

      1. Choose a Policy Preset. The recommended preset keeps normal search crawling open while blocking common AI training crawlers.
      2. Add Custom Path Rules for private areas such as /admin/, /account/, search pages, staging paths, or generated archives.
      3. Paste your existing robots.txt into the editor and click Validate Paste to catch missing user-agent groups, malformed sitemaps, duplicate rules, and unsupported directives.
      4. Use the tester to compare Googlebot, Bingbot, GPTBot, ClaudeBot, PerplexityBot, and CCBot against the same URL before publishing.
      5. Use this page for robots.txt permissions. Paste a small llms.txt sample here to check structure, or open the dedicated llms.txt generator for full setup.

      Example: For a public blog, use "Allow search, block AI training," add /wp-admin/ and /wp-login.php blocks, then confirm Googlebot is allowed while GPTBot is blocked.

      Robots.txt Generator FAQ

      What is a robots.txt file used for?

      A robots.txt file tells search engine crawlers which pages or files the crawler can or can't request from your site. It is mainly used to manage crawler traffic and prevent your site from being overloaded with requests.

      Is robots.txt a legal thing?

      Robots.txt is not a legally binding document; it is a voluntary standard. While most reputable search engines (like Google and Bing) strictly follow it, malicious bots and scrapers can choose to ignore its rules.

      Does robots.txt actually work?

      Yes, it works effectively for legitimate search engine crawlers and reputable AI scrapers (like GPTBot). If you disallow a path, they will not crawl it. However, it does not guarantee that a page won't be indexed or accessed by bad actors.

      Is robots.txt still used?

      Absolutely. It remains a foundational part of technical SEO. Every major website uses a robots.txt file to optimize crawl budgets, block AI scrapers, and hide private directories.