Free tool
Bing Robots.txt Validator
Validate your robots.txt the way Bingbot reads it: the Sitemap directive, the Disallow rules that apply to Bingbot, and noindex conflicts — before you submit to Bing Webmaster Tools.
What this checks
- Your robots.txt loads at the domain root as plain text, not an HTML fallback page.
- The Sitemap: line exists, is absolute, uses HTTPS, stays on your host, and the file behind it actually returns valid XML.
- The Disallow rules Bingbot obeys — resolved from a bingbot/msnbot group when you have one, otherwise from User-agent: *.
- Whether your sitemap URLs are blocked by your own rules (the contradiction Bing reports as a sitemap warning).
- Noindex conflicts: pages carrying a noindex tag that Bingbot is also forbidden from fetching, so it never sees the tag.
- Unsupported Noindex: directives and Crawl-delay values that throttle Bing to a standstill.
No robots.txt yet? Build one with the Robots.txt Generator first.
Pro tips
Bingbot has its own group
If a User-agent: bingbot block exists, Bing ignores the * block entirely. We resolve rules the same way.
Sitemap must be absolute
Bing needs the full https:// address on the Sitemap: line. Relative paths are ignored.
Noindex behind a block does nothing
Bingbot can't read a tag on a page it isn't allowed to fetch.
Never list blocked URLs
A sitemap URL your robots.txt disallows is a contradiction Bing reports as a sitemap warning.
Frequently asked questions
Mostly the same, with three real differences: Bing honours Crawl-delay (Google ignores it), Bing looks for a bingbot or msnbot user-agent group before falling back to *, and Bing's Webmaster Tools reports sitemap/robots contradictions as warnings on the sitemap itself. This tool resolves your rules using Bingbot's group, not Google's.
Related SEO tools
Bing Sitemap Submission Checklist →Robots.txt Generator →Google Sitemap Submission Checklist →Sitemap Generator →
Or browse all SEO tools in the toolkit.
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