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Indexing & Crawlability · Free Tool

Free Robots.txt Tester

A misconfigured robots.txt can silently block Google from indexing your entire site. This tool fetches your robots.txt, parses all user-agent rules, and lets you test specific paths to see instantly if they're blocked or allowed — for Googlebot, Bingbot, or any other crawler.

What This Tool Checks

  • Fetches and displays your full robots.txt file content
  • Parses all user-agent rules (Googlebot, Bingbot, *, and custom bots)
  • Path tester: enter any URL path and get an instant Allow/Block verdict
  • Detects sitemap declarations in robots.txt
  • Counts total Disallow and Allow rules per user-agent
  • Flags an empty or missing robots.txt file

Why This Matters for SEO

Robots.txt is the first thing Googlebot reads when it visits your domain. A single misconfigured Disallow rule can accidentally block your entire site from being crawled. This happens surprisingly often — especially after site migrations, when developers add Disallow: / to staging environments and forget to remove it before launch. This tool catches those catastrophic errors instantly.

Want this audit running on every page of your site, every day? See PerfBee Site Crawler — Catch noindex regressions and crawlability issues before Google does.

Frequently Asked Questions

What is a robots.txt file?
Robots.txt is a plain text file at the root of your domain (e.g., example.com/robots.txt) that tells search engine crawlers which pages or sections of your site they are allowed to crawl. It uses a simple syntax with "User-agent" (which bot the rule applies to) and "Disallow" or "Allow" directives (which paths to block or permit). It's a crawling directive, not an indexing directive — it controls access, not indexing.
Does robots.txt affect SEO?
Yes, significantly. If you accidentally block important pages in robots.txt (using Disallow: /), Googlebot cannot crawl them and will not index them. This means those pages won't appear in Google search results. However, note that robots.txt only blocks crawling — Google may still index a page it's never crawled if other sites link to it. To prevent indexing, use a noindex meta tag instead.
What should I block with robots.txt?
Common legitimate uses for robots.txt Disallow rules include: /admin/ (backend admin panels), /staging/ or /dev/ (development areas), /cart/ and /checkout/ (no SEO value, no need to crawl), duplicate parameter URLs (e.g., ?sort=, ?page=), and internal search results. Never block: your homepage, main content pages, important category/product pages, or your sitemap.
What is "Disallow: /" and is it dangerous?
Disallow: / is the most dangerous robots.txt directive — it tells all search engine crawlers to not access ANY page on your entire domain. This effectively makes your site invisible to Google. This directive is legitimate on password-protected internal tools or during development. It's a catastrophic mistake on a production website. Our tool immediately flags this condition.
How do I test if Googlebot can access a specific page?
Enter your domain URL above, then enter the specific path you want to test in the "Test Path" field (e.g., /blog/my-post or /products/). The tool will fetch your robots.txt, parse the rules, and give you an instant Allow/Block verdict for that path as it applies to Googlebot. You can also use Google Search Console's robots.txt tester for authoritative testing directly from Google.
Free forever plan — no credit card required

Find pages accidentally blocked from Google

PerfBee cross-checks your robots.txt rules against every page it crawls — so you instantly know which pages Google is blocked from seeing. Get daily crawl reports, broken link alerts, Core Web Vitals tracking, and AI fix suggestions — across your entire site.

  • Crawl unlimited pages — daily, automatic
  • Broken link detection across your whole site
  • Core Web Vitals & Lighthouse audits per page
  • AI-powered code fix suggestions
  • White-label PDF reports for clients
  • Email alerts for new issues & downtime
Start Free Indexability AuditView Pricing

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