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Sitemap to Robots.txt Generator

Generate a complete robots.txt file with sitemap references and crawl directives.

Copy-paste outputs

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Tool 01

Sitemap to Robots.txt Generator

Generate a complete robots.txt file with sitemap references and crawl directives. Ensure search engines can find your sitemaps and understand your crawl rules.

Sitemap URLs
Enter sitemap URLs to include in robots.txt.

Enter the URLs of all sitemaps you want referenced in robots.txt.

Advanced options

Which crawlers these rules apply to.

Paths that should be explicitly allowed for crawling.

Paths that should be blocked from crawling.

Delay between requests in seconds (too high can hurt indexing).

Robots.txt output
Copy, download, and deploy your robots.txt file.
Generate robots.txt to see the output.

How it works

Sitemap to Robots.txt Generator: methodology and worked example

How this tool computes its result

Takes one or more sitemap URLs (one per line), normalizes each by auto-prefixing https:// when no protocol is present and validating with `new URL()`, then deduplicates by the normalized string. Builds a single User-agent block (chosen from 8 presets or *) with optional Allow/Disallow path lists (unvalidated, one per line each) and an optional numeric Crawl-delay, followed by a blank line and one Sitemap: directive per normalized URL. Generation is blocked with an inline error if there are zero valid sitemap URLs, if any input line fails URL normalization, or if the crawl-delay value isn't numeric.

Worked example

Entering "example.com/sitemap.xml" (no scheme) and "https://example.com/sitemap-blog.xml" with Disallow paths "/admin/" and "/private/", User-agent "Googlebot," and Crawl-delay "1" produces a robots.txt with the User-agent line, two Disallow lines, Crawl-delay, a blank line, then both Sitemap lines -- the first URL is auto-corrected to "https://example.com/sitemap.xml" even though it was typed without a scheme.

When not to use this tool

This only outputs one User-agent block covering all listed Allow/Disallow rules -- it cannot generate multiple crawler-specific sections with different rules per bot in a single pass, so multi-bot robots.txt files still need manual merging of separate runs.

Common mistakes

  • - Typing an Allow or Disallow path without a leading slash expecting a validation warning -- neither field is syntax-checked, so "admin" and "/admin" both pass through unchanged even though only the latter means anything to crawlers.
  • - Assuming the User-agent dropdown scopes the Allow/Disallow/Crawl-delay rules per-crawler -- it only changes the literal User-agent value in the header, the rules underneath apply to whichever single agent is selected.
  • - Entering a non-numeric crawl delay like "1s" -- generation is blocked outright with an inline error rather than silently stripping or rounding the invalid value.

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