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Online network diagnostics — DNS, GeoIP, ping, SSL, Whois, HTTP headers, and more. No login required.

About the Robots.txt Tester

Read a site's robots.txt, see the rules that apply to each crawler, and test whether a specific URL would be allowed or blocked — the file where an accidental line can remove a whole site from search.

Frequently asked questions

Does robots.txt remove a page from Google?
No. It stops crawling, not indexing — a blocked URL can still appear without a description. Use a noindex meta tag to remove a page properly.
Should robots.txt list my sitemap?
Yes. A Sitemap line is the simplest way to point every crawler at your sitemap without registering anywhere.

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