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List of All User Agents for Top Search Engines

Here is a working list of all user agents for the major, top search engines. I use this information frequently for my plugins such as Blackhole for Bad Bots and BBQ Pro, so I figured it would be useful to post the information online for the benefit of others. Having the user agents for these popular bots all in one place helps to streamline my development process. Each search engine includes references and a regex pattern to match all known user agents.

Search Engines

(In alphabetical order)

AOL.com

Mozilla/5.0 (compatible; MSIE 9.0; AOL 9.7; AOLBuild 4343.19; Windows NT 6.1; WOW64; Trident/5.0; FunWebProducts)

Mozilla/4.0 (compatible; MSIE 8.0; AOL 9.7; AOLBuild 4343.27; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Mozilla/4.0 (compatible; MSIE 8.0; AOL 9.7; AOLBuild 4343.21; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)

Mozilla/4.0 (compatible; MSIE 8.0; AOL 9.7; AOLBuild 4343.19; Windows NT 5.1; Trident/4.0; GTB7.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Mozilla/4.0 (compatible; MSIE 8.0; AOL 9.7; AOLBuild 4343.19; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)

Mozilla/4.0 (compatible; MSIE 7.0; AOL 9.7; AOLBuild 4343.19; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)

Plus many more older versions/variations (see links for details)..

Regex to match all of these user-agent strings: aolbuild

References:

Baidu

Baiduspider
Baidu Web Search	
Baidu Image Search	
Baiduspider-image
Baidu Mobile Search	
Baiduspider-mobile
Baidu Video Search	
Baiduspider-video
Baidu News Search	
Baiduspider-news
Baidu Bookmark Search	
Baiduspider-favo
Baidu Union Search	
Baiduspider-cpro
Baidu Business Search	
Baiduspider-ads

Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)

Baiduspider+(+http://www.baidu.com/search/spider_jp.html)

Baiduspider+(+http://www.baidu.com/search/spider.htm)

Regex to match all of these user-agent strings: baidu

References:

Bingbot/MSN

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 (Windows Phone 8.1; ARM; Trident/7.0; Touch; rv:11.0; IEMobile/11.0; NOKIA; Lumia 530) like Gecko (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)

msnbot/2.0b (+http://search.msn.com/msnbot.htm)

msnbot-media/1.1 (+http://search.msn.com/msnbot.htm)

Mozilla/5.0 (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 (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 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko) BingPreview/1.0b

Mozilla/5.0 (Windows Phone 8.1; ARM; Trident/7.0; Touch; rv:11.0; IEMobile/11.0; NOKIA; Lumia 530) like Gecko BingPreview/1.0b

Regex to match all of these user-agent strings: bingbot, bingpreview, msnbot

References:

DuckDuckGo

DuckDuckBot/1.0; (+http://duckduckgo.com/duckduckbot.html)

Regex to match this user-agent string: duckduckgo

References:

Google

Googlebot/2.1 (+http://www.googlebot.com/bot.html)

Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)

Googlebot/2.1 (+http://www.google.com/bot.html)

Googlebot-News

Googlebot-Image/1.0

Googlebot-Video/1.0

SAMSUNG-SGH-E250/1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 UP.Browser/6.2.3.3.c.1.101 (GUI) MMP/2.0 (compatible; Googlebot-Mobile/2.1; +http://www.google.com/bot.html)

DoCoMo/2.0 N905i(c100;TB;W24H16) (compatible; Googlebot-Mobile/2.1; +http://www.google.com/bot.html)

Mozilla/5.0 (iPhone; CPU iPhone OS 8_3 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12F70 Safari/600.1.4 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)

[various mobile device types] (compatible; Mediapartners-Google/2.1; +http://www.google.com/bot.html)

Mediapartners-Google

AdsBot-Google (+http://www.google.com/adsbot.html)

Regex to match all of these user-agent strings: adsbot-google, googlebot, mediapartners-google

References:

Teoma

Mozilla/2.0 (compatible; Ask Jeeves/Teoma; +http://sp.ask.com/docs/about/tech_crawling.html)

Mozilla/2.0 (compatible; Ask Jeeves/Teoma; +http://about.ask.com/en/docs/about/webmasters.shtml)

Mozilla/2.0 (compatible; Ask Jeeves/Teoma)

Mozilla/5.0 (compatible; Ask Jeeves/Teoma; +http://about.ask.com/en/docs/about/webmasters.shtml)

Regex to match all of these user-agent strings: teoma

References:

Yahoo!

Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp)

Regex to match this user-agent string: slurp

References:

Yandex

Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Mozilla/5.0 (iPhone; CPU iPhone OS 8_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12B411 Safari/600.1.4 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexAccessibilityBot/3.0; +http://yandex.com/bots)

Mozilla/5.0 (iPhone; CPU iPhone OS 8_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12B411 Safari/600.1.4 (compatible; YandexMobileBot/3.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexDirectDyn/1.0; +http://yandex.com/bots

Mozilla/5.0 (compatible; YandexImages/3.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexVideo/3.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexMedia/3.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexBlogs/0.99; robot; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexFavicons/1.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexWebmaster/2.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexPagechecker/1.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexImageResizer/2.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YaDirectFetcher/1.0; Dyatel; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexCalendar/1.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexSitelinks; Dyatel; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexMetrika/3.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexAntivirus/2.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexVertis/3.0; +http://yandex.com/bots)

Mozilla/5.0 (compatible; YandexBot/3.0; MirrorDetector; +http://yandex.com/bots)

Regex to match all of these user-agent strings: yandex

References:

If you know of a search engine that you feel deserves to be included in this list, feel free to leave a comment. Thanks! :)

Jeff Starr
About the Author Jeff Starr = Web Developer. Security Specialist. WordPress Buff.
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9 responses
  1. Hi Jeff
    Thanks for 6G and this post. Also noted your new Blackhole plugin. Is 6G and that plugin compatible? I use 6G on all my servers, works like a charm. My spikes in “weird” traffic has gone down a lot.

  2. Nice reference! With 80+ percent of the Chinese market, maybe Baidu should be on this list?

  3. haluk karamete May 12, 2016 @ 12:14 am

    Hi Jeff,

    How come BINGBOT is not part of this list? Isn’t it one of the biggest ones out there?

  4. Scott Allen May 14, 2016 @ 2:08 pm

    Hey Jeff,

    Great list! AOL results are now powered by Bing, and previously were powered by Google. Does AOL even have a legit bot anymore? I’m thinking the AOL User-Agents might be 100% fake. Perhaps these should move to the blacklist? I’d be interested to hear your take.

    – Scott

    • Jeff Starr

      That’s good to know! I’ll do some further research and maybe remove AOL from the list. Thanks for bringing it to my attention.

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