Free Tools/robots.txt Tester
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robots.txt Tester

Check whether Googlebot can crawl any URL on your website. Enter your domain and a page path to see exactly what your robots.txt allows or blocks.

Enter the path from the root, e.g. /blog/ or /wp-admin

What to look for

Accidentally blocked pages: A wrong Disallow rule can block your entire site from Google. /admin/ is fine to block, / is not.
Crawl budget waste: Allowing Google to crawl cart pages, search results, and filter URLs wastes crawl budget on pages that shouldn't rank.
Allow vs Disallow priority: When both match a URL, the most specific rule wins, not the order they appear in the file.
Disallow: (empty) means allow all: An empty Disallow value tells crawlers they can access everything. It's the correct default for most public sites.

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Free Robots.txt Tester Check If Googlebot Can Crawl Any URL | SEOMentor