What is a robots.txt file?

A robots.txt file is a plain text file placed at the root of your website (e.g. example.com/robots.txt) that tells search engine crawlers which pages they are allowed or not allowed to access. It uses a simple directive format — User-agent, Allow, and Disallow — defined by the Robots Exclusion Protocol (RFC 9309). Every major search engine respects robots.txt directives.

Do I need a robots.txt file?

Most websites benefit from having one. Without a robots.txt, crawlers will attempt to access every URL on your site, including admin pages, duplicate content, and staging areas. A well-configured robots.txt focuses crawler budget on your important pages and keeps private or low-value URLs out of search indexes.

What presets are available?

The generator includes presets for WordPress (blocks wp-admin, allows admin-ajax.php), Shopify (blocks cart, checkout, and admin paths), Allow All (unrestricted crawling), Block All (disallows everything), and Custom (start from scratch). Each preset follows current platform best practices and can be customized after loading.

How does URL testing work?

After building your robots.txt, enter any URL path in the tester to see whether it would be allowed or blocked. The tester evaluates your rules using the same matching logic search engines use — longest matching path wins, and Allow takes precedence over Disallow when path lengths are equal. You can also test against specific user agents.

Can robots.txt block pages from appearing in Google?

Robots.txt prevents crawling, not indexing. If other sites link to a page you have blocked in robots.txt, Google may still list the URL in search results (without a snippet or cached version). To fully prevent indexing, use a noindex meta tag or X-Robots-Tag HTTP header instead. Our Meta Tag Generator can help you set those up.

Is the generated output valid?

Yes. The generator produces output that follows the Robots Exclusion Protocol (RFC 9309). Each directive uses the correct syntax — User-agent on its own line, followed by Allow and Disallow rules, with Sitemap directives at the end. You can paste the output directly into your robots.txt file.

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What the Robots.txt Generator Does

Every website needs a robots.txt file. It is the first thing search engine crawlers look for when they visit your domain, and it tells them which pages to crawl and which to skip. The problem is that robots.txt syntax is deceptively simple — a missing slash, an incorrect wildcard, or a misplaced user-agent directive can block Google from indexing your best content or leave admin pages exposed to crawlers that should never see them.

Our Robots.txt Generator removes the guesswork. It gives you a visual rule builder with platform-specific presets, a live syntax-highlighted preview, and a built-in URL tester that validates your rules before you deploy them. Whether you are launching a new WordPress blog, locking down a Shopify storefront, or writing custom directives for specific crawlers like GPTBot or ClaudeBot, this tool produces valid, RFC 9309-compliant output you can copy or download in seconds.

Everything runs 100% client-side in your browser. Your rules, URLs, and sitemap paths are never sent to any server. There are no accounts, no tracking, and no data collection. Close the tab and your session is gone.

How It Works

Start with a preset. At the top of the tool you will find five preset buttons: WordPress, Shopify, Allow All, Block All, and Custom. Clicking a preset populates the rule list with industry-standard directives for that platform. The WordPress preset, for example, blocks /wp-admin/ while keeping /wp-admin/admin-ajax.php accessible (required by many plugins). The Shopify preset blocks cart, checkout, account, and admin paths along with common query-string patterns that create duplicate content.

Add and manage rules. Below the presets, the Add Rule form lets you build custom directives. Select a user-agent from a dropdown that includes 16 common crawlers — from Googlebot and Bingbot to AI-specific agents like GPTBot, ChatGPT-User, and ClaudeBot. Toggle between Allow and Disallow, type a path, and click Add. The path field supports wildcards (*) and end-of-URL anchors ($) for precise matching. Every rule appears in a scrollable list where you can reorder rules with up/down arrows or remove them with a single click.

Set your sitemap URL. An optional Sitemap URL field lets you include a Sitemap: directive in the output. Enter the full URL to your sitemap.xml and the generator appends it at the bottom of the file, exactly where crawlers expect it.

Preview and export. The right panel displays a live, syntax-highlighted preview of your robots.txt output. User-agent lines appear in blue, Allow directives in green, Disallow directives in red, and Sitemap lines in purple. When you are satisfied with the result, click Copy to send it to your clipboard or Download to save it as a ready-to-upload robots.txt file.

Test your rules. The Test URLs section at the bottom of the left panel lets you paste one or more URL paths, choose a user-agent to test as, and click Test URLs. Each path gets an ALLOWED or BLOCKED badge along with the specific rule that matched it. The tester uses RFC 9309 matching logic — longest matching path wins, and Allow takes precedence over Disallow at equal specificity. A collapsible quick reference panel below the output explains the syntax if you need a refresher.

Why Use Our Robots.txt Generator

Most online robots.txt generators give you a text box and expect you to know the syntax. Ours is different in several important ways.

No syntax to memorize. The visual builder handles formatting, grouping by user-agent, and directive capitalization. You pick from dropdowns and type paths — the generator writes valid robots.txt for you.

16 crawler-specific user-agents. Beyond the standard Googlebot and Bingbot, the tool includes AI crawlers (GPTBot, ChatGPT-User, ClaudeBot), regional engines (Baiduspider, YandexBot), and SEO tool bots (AhrefsBot, SemrushBot). You can write granular rules that treat each crawler differently.

Built-in URL tester with RFC 9309 matching. Rather than uploading your file to a third-party validator, you can test paths directly inside the tool. The tester applies the same specificity logic that real crawlers use, so what you see here is what crawlers will do in production.

No accounts, no limits, no ads gating features. Copy as many times as you want. Download as many files as you need. Every feature is available immediately without signing up.

Use Cases

Launching a WordPress site. Load the WordPress preset, review the default rules, add any custom paths you want blocked (like /staging/ or /wp-json/), and download the file. Upload it to your site root and you are done.

Blocking AI crawlers from scraping your content. Select GPTBot, ChatGPT-User, or ClaudeBot from the user-agent dropdown, set the directive to Disallow, enter / as the path, and that crawler is blocked site-wide. You can block all three independently while keeping search engine crawlers fully allowed.

Protecting sensitive directories. Add Disallow rules for paths like /admin/, /internal/, or /api/ to keep crawlers away from areas that should not appear in search results. Test each path in the URL tester to confirm coverage before deploying.

Auditing an existing robots.txt. Paste your current URL paths into the tester, select the user-agent you care about, and verify that each path returns the expected ALLOWED or BLOCKED result. This is faster than manually reading through directive syntax.

Setting up a Shopify store. The Shopify preset covers cart, checkout, account, admin, and common duplicate-content query strings. Review the rules, add your sitemap URL, and export. No need to research which paths Shopify recommends blocking — the preset reflects current best practices.

Preparing for a site migration. Before changing your URL structure, generate a robots.txt with your new paths and test them against the old ones. Catch mismatches before crawlers do.

Tips and Best Practices

Always include a sitemap directive. While crawlers can discover your sitemap through Google Search Console or Bing Webmaster Tools, including it in robots.txt gives every crawler — including those you have not registered with — a direct path to your content map.

Test with specific user-agents, not just the wildcard. If you have rules targeting Googlebot specifically, test as Googlebot to confirm they take precedence over your wildcard rules. Agent-specific rules override wildcard rules regardless of path length.

Remember that robots.txt blocks crawling, not indexing. If other sites link to a page you have blocked, search engines may still list the URL in results (without a snippet). To fully prevent indexing, use a noindex meta tag or X-Robots-Tag header instead. Our Meta Tag Generator can help with that.

Use wildcards sparingly. A rule like Disallow: /*? blocks all URLs with query strings, which might include legitimate paginated content or filtered views. Be specific — Disallow: /*?sort_by* is safer than a blanket query-string block.

Review your robots.txt after every major site change. New sections, redesigned URL structures, or migrated platforms can all introduce paths that your existing rules do not cover. Regenerate and retest whenever your site structure changes significantly.

Frequently Asked Questions

What is a robots.txt file?: A robots.txt file is a plain text file placed at the root of your website (e.g. example.com/robots.txt) that tells search engine crawlers which pages they are allowed or not allowed to access. It uses a simple directive format — User-agent, Allow, and Disallow — defined by the Robots Exclusion Protocol (RFC 9309). Every major search engine respects robots.txt directives.
Do I need a robots.txt file?: Most websites benefit from having one. Without a robots.txt, crawlers will attempt to access every URL on your site, including admin pages, duplicate content, and staging areas. A well-configured robots.txt focuses crawler budget on your important pages and keeps private or low-value URLs out of search indexes.
What presets are available?: The generator includes presets for WordPress (blocks wp-admin, allows admin-ajax.php), Shopify (blocks cart, checkout, and admin paths), Allow All (unrestricted crawling), Block All (disallows everything), and Custom (start from scratch). Each preset follows current platform best practices and can be customized after loading.
How does URL testing work?: After building your robots.txt, enter any URL path in the tester to see whether it would be allowed or blocked. The tester evaluates your rules using the same matching logic search engines use — longest matching path wins, and Allow takes precedence over Disallow when path lengths are equal. You can also test against specific user agents.
Can robots.txt block pages from appearing in Google?: Robots.txt prevents crawling, not indexing. If other sites link to a page you have blocked in robots.txt, Google may still list the URL in search results (without a snippet or cached version). To fully prevent indexing, use a noindex meta tag or X-Robots-Tag HTTP header instead. Our Meta Tag Generator can help you set those up.
Is the generated output valid?: Yes. The generator produces output that follows the Robots Exclusion Protocol (RFC 9309). Each directive uses the correct syntax — User-agent on its own line, followed by Allow and Disallow rules, with Sitemap directives at the end. You can paste the output directly into your robots.txt file.