Bingbot
The primary user agent used to crawl for Bing's Organic Search.
Variations (2)
Bingbot - Desktop
^(?!.*(?:Mobile|adidxbot)).*bingbot.*$
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm) Chrome/W.X.Y.Z Safari/537.36
Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm) W.X.Y.Z Safari/537.36
Bingbot - Mobile
^.*Mobile(?!.*adidxbot).*bingbot.*$
Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/W.X.Y.Z Mobile Safari/537.36 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)
IP Prefixes
157.55.39.0/24 207.46.13.0/24 40.77.167.0/24 13.66.139.0/24 13.66.144.0/24 52.167.144.0/24 13.67.10.16/28 13.69.66.240/28 13.71.172.224/28 139.217.52.0/28 191.233.204.224/28 20.36.108.32/28 20.43.120.16/28 40.79.131.208/28 40.79.186.176/28 52.231.148.0/28 20.79.107.240/28 51.105.67.0/28 20.125.163.80/28 40.77.188.0/22 65.55.210.0/24 199.30.24.0/23 40.77.202.0/24 40.77.139.0/25 20.74.197.0/28 20.15.133.160/27 40.77.177.0/24 40.77.178.0/23