Build a robots.txt file with your own rules — a different set of Allow/Disallow paths per crawler if you need it (e.g. blocking a specific AI crawler while leaving Googlebot untouched), plus your sitemap URLs. Free tool, nothing you enter is stored; the generated file is shown once, in the same response, and gone.

What is a robots.txt file?

robots.txt is a small text file that tells well-behaved web crawlers (search engines, AI crawlers, SEO tools) which parts of your site they may or may not request. It has to live at your domain's own root — https://yoursite.com/robots.txt — for crawlers to find it; this tool generates the file's content, but uploading it there is a separate step you do yourself.

How do I use it?

Save the generated text as a file literally named robots.txt and upload it to your site's own root directory. Each User-agent block above targets one crawler (or * for every crawler that doesn't have its own more specific block); its Disallow lines list paths that crawler shouldn't request, and Allow lines carve out exceptions within an otherwise-disallowed area. Any Sitemap URLs you add point crawlers at your sitemap directly — useful alongside, not instead of, submitting it to each search engine's own tools.

A real limitation, stated plainly

robots.txt is advisory, not a security mechanism — it only works because well-behaved crawlers choose to respect it. A disallowed path is still often reachable by anyone who has (or guesses) its direct URL, and a disallow rule can even make a path's existence more discoverable, not less, since the file itself is public. Never rely on it to hide genuinely sensitive content; use real access control (authentication, a firewall rule, or simply not linking to it) for anything that actually needs to stay private.