bingbot

search-engine bingbot

Microsoft's web crawling bot for Bing search indexing

About this crawler

bingbot is a web crawler identified by the regular-expression pattern bingbot in the User-Agent request header. It is categorised as search-engine. Use the regex above to detect, log, allow, or block bingbot traffic in your web server, CDN edge rules, or robots.txt.

Block-rate · top 25k sites

1.6%
latest snapshot
2026-06-04
matched key: bingbot
2026-05-012026-06-041.9%

Technical details

Name
bingbot
Pattern
bingbot
Tags
search-engine
Reference
https://www.bing.com/webmasters/help/which-crawlers-does-bing-use-8c184ec0
rDNS suffixes
.search.msn.com
Instances
14 known sample(s)

rDNS verification (FCrDNS)

Verify a request is genuinely bingbot with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.

Sample User-Agent strings

Mozilla/5.0 (Windows Phone 8.1; ARM; Trident/7.0; Touch; rv:11.0; IEMobile/11.0; NOKIA; Lumia 530) like Gecko (compatible; adidxbot/2.0; +http://www.bing.com/bingbot.htm)
Mozilla/5.0 (compatible; adidxbot/2.0; http://www.bing.com/bingbot.htm)
Mozilla/5.0 (compatible; adidxbot/2.0; +http://www.bing.com/bingbot.htm)
Mozilla/5.0 (compatible; bingbot/2.0; http://www.bing.com/bingbot.htm)
Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm
Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)
Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm) SitemapProbe
Mozilla/5.0 (iPhone; CPU iPhone OS 7_0 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11A465 Safari/9537.53 (compatible; adidxbot/2.0; http://www.bing.com/bingbot.htm)
Mozilla/5.0 (iPhone; CPU iPhone OS 7_0 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11A465 Safari/9537.53 (compatible; adidxbot/2.0; +http://www.bing.com/bingbot.htm)
Mozilla/5.0 (iPhone; CPU iPhone OS 7_0 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11A465 Safari/9537.53 (compatible; bingbot/2.0; http://www.bing.com/bingbot.htm)
Mozilla/5.0 (iPhone; CPU iPhone OS 7_0 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11A465 Safari/9537.53 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)
Mozilla/5.0 (seoanalyzer; compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm) Safari/537.36
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm) Chrome/103.0.5060.134 Safari/537.36

Block this crawler

robots.txt — disallow bingbot:

User-agent: bingbot Disallow: /

Apache .htaccess — return 403:

RewriteEngine On RewriteCond %{HTTP_USER_AGENT} bingbot [NC] RewriteRule .* - [F,L]

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "bingbot") { return 403; }
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