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robots.txt Tester

Check if a URL is allowed or disallowed for a User-Agent

How it works

  • The tester picks the most specific User-Agent block that matches your input (e.g. Googlebot matches more specifically than *)
  • Within that block, both Allow and Disallow rules are checked — the longest matching path wins (per RFC 9309)
  • If no User-Agent block matches, the URL is treated as allowed by default
  • Wildcards: * matches any sequence of characters, $ matches end of URL

Example robots.txt rules

User-agent: *
Disallow: /admin/      # block /admin/ and everything under it
Allow: /admin/help     # but allow /admin/help
Disallow: *.pdf$       # block any URL ending in .pdf
Sitemap: https://example.com/sitemap.xml

Common bots reference

  • Googlebot — Google web crawler. Also: Googlebot-Image, Googlebot-News
  • Bingbot — Microsoft Bing crawler
  • Baiduspider — Baidu search
  • GPTBot — OpenAI crawler (block to opt out of GPT training)
  • AhrefsBot / SemrushBot — SEO tools (often blocked to save bandwidth)

User Reviews

Average 4.8 stars based on 9 user reviews.

Lisa Li2026-04-16
Role: Webmaster

For people searching free online robots.txt tester, this page matches the intent well. It is not a generic utility; robots.txt Tester is built around googlebot test; it keeps easy-to-miss rules visible, and the result is easy to keep working with.

Jennifer Chen2026-01-21
Role: Content Operator

During indexing troubleshooting, robots.txt Tester solves the part I worry about most: missing metadata can hurt indexing. By keeping multiple User-Agent support visible in the workflow, there is less manual cleanup, and it reduces rework after publishing, so it belongs in my regular tool list.

Michelle Zhao2026-04-26
Role: Growth Lead

I would recommend robots.txt Tester to anyone who needs robots.txt tester. It covers long-tail needs like batch robots.txt tester naturally, and features such as specific rule highlighting make the result easier to check than an ad hoc workaround.

Linda Zhou2026-01-05
Role: Technical SEO

The page focus is clear: the core is robots.txt tester, googlebot test, and post-publish review. robots.txt Tester can audit the SEO rules and copy a clean issue list; it saves time compared with checking every URL manually, which makes it easy to judge before using it.

Emily Lin2026-04-10
Role: Frontend Developer

When I need free online robots.txt tester, I care about fewer steps. robots.txt Tester keeps batch text input direct; with straightforward option setup, follow-up review is easier for visitors coming from search.

Tina Guo2026-01-15
Role: Product Manager

I found robots.txt Tester while looking for robots.txt tester without upload, and the real issue was that manual URL-by-URL checks are slow. Straightforward option setup and free online robots are on the same page, so I can review indexing signals before publishing without stitching several tools together.

David Zhang2026-04-20
Role: Marketing Operator

For robots.txt tester work, the important part is whether the output is easy to verify. robots.txt Tester puts free online robots up front, the result is ready for SEO or engineering follow-up, and it handles googlebot test work without sending me to another page.

Kevin Wang2026-01-25
Role: SEO Specialist

Our team runs into this during post-publish review: missing metadata can hurt indexing. robots.txt Tester keeps the robots.txt tester flow short, and URL allow/disallow check helps with pre-handoff review for repeated SEO Specialist work.

Ryan Liu2026-04-04
Role: Webmaster

I needed robots.txt tester that could review indexing signals before publishing, not just a generic page. robots.txt Tester keeps URL allow/disallow check and multiple User-Agent support close to the real workflow, and it makes search-visibility issues easier to catch.