Skip to main content
Security Workspace

Robots.txt Generator.

Security Shield Injection

Add defensive filters into your file matrix stack to prevent resource scraping loops.

Syntax Quality
File rules pass all semantic structure guidelines perfectly.
robots.txt configuration
Pipeline Simulator

What Is a Robots.txt Generator?

This generator lets you edit rules visually, inject common AI bot blocks, catch syntax errors before deploy, and test whether a specific user-agent can crawl a given path.

How to Use This Tool

  1. Edit your robots.txt in the code panel — or start from the default template.
  2. Inject presets to block AI scrapers, archivers, or security scanners with one click.
  3. Check syntax — the validator flags directives declared before a User-agent block.
  4. Simulate a crawl by entering a user-agent and path, then click Evaluate Route Restrictions.
  5. Copy the finished file and upload it to your site root at /robots.txt.

Example

User-agent: *
Allow: /
Disallow: /api/
Disallow: /admin/

User-agent: GPTBot
Disallow: /

Sitemap: https://yourdomain.com/sitemap.xml

When multiple rules match the same path, the longest matching pattern wins. Allow can override a broader Disallow within the same user-agent block. Disallow low-value paths like /api/ or /cart/ so crawlers focus on content pages.

Related Tools

Browse all
Schema GeneratorMeta GeneratorSlug GeneratorRedirect CompilerRobots.txt Setup Guide

Frequently Asked Questions

How do I block AI scrapers like GPTBot?

Add User-agent blocks for bots such as GPTBot, ChatGPT-User, Google-Extended, and Anthropic-AI with Disallow: / for each. Use the one-click AI scraper preset in this tool.

What is the difference between Allow and Disallow?

Disallow tells crawlers not to fetch matching paths. Allow explicitly permits a path within a broader Disallow block. The most specific (longest) path match wins.

Where do I put robots.txt on my website?

Upload it to your site root so it loads at https://yourdomain.com/robots.txt. Verify it in a browser after deploying.

Does robots.txt guarantee crawlers will obey it?

No. Reputable search engines follow it, but malicious bots may ignore it. Protect sensitive content with authentication, not just robots.txt.

How does the rule simulator work?

Enter a user-agent and URL path, then click Evaluate. The simulator walks your blocks and applies the longest matching Allow or Disallow rule.

What is a sitemap line in robots.txt?

A Sitemap: directive points crawlers to your XML sitemap URL. It helps discovery but does not block or allow paths.

Build and test your robots.txt — block AI scrapers, validate syntax, and simulate crawler access before you deploy.