Test if your robots.txt is accessible, properly formatted, and not accidentally blocking search engine crawlers.
A text file at the root of your website that tells search engine crawlers which pages they can and cannot access. It uses the Robots Exclusion Standard to communicate crawling rules.
If robots.txt returns a 5xx error, Google treats it as a full block and stops crawling your entire site for up to 30 days. This is different from a 404, which is treated as no restrictions.
CDNs like Cloudflare can serve different responses to browsers and bots. Our checker fetches as both a Chrome browser and Googlebot to detect differential treatment.
Including Sitemap: directives in your robots.txt helps search engines discover your sitemap without relying on Search Console. Multiple sitemaps can be listed.
Yes. We make real HTTP requests to your domain from both a Chrome browser user-agent and a Googlebot user-agent, then compare the responses.
Yes! Pulse Stack™ SEO Monitoring checks your robots.txt every 5 minutes, alerting you immediately if it starts returning errors or if the content changes unexpectedly.
This is a serious issue called differential serving. Our tool checks both perspectives. For continuous monitoring, use the SEO Monitoring dashboard which compares browser and bot responses every cycle.
The free tool has no per-user limits. For automated, scheduled monitoring across multiple domains, sign up for SEO Monitoring.
Get alerts within minutes if your robots.txt starts returning errors, changes unexpectedly, or starts blocking crawlers.
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