Knowing the UserAgent ID strings used by crawlers and browser can be useful for various purposes.
Browsers and search engine crawlers usually identify themselves through a HTTP user agent ID string field.
Some websites use the user agent string ID to detect if the visitor is a specific browser or search engine crawler.
The http user agent id string field allows websites to check and detect browser and versions;
this information can be used to output different html and content.
| Your browser user agent ID: | CCBot/1.0 (+http://www.commoncrawl.org/bot.html) |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en) AppleWebKit/522.11.3 (KHTML, like Gecko) Version/3.0 Safari/522.11.3 | Safari 3 Beta on Windows XP SP2 |
| Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) | |
| Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322) | |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; nl; rv:1.8) Gecko/20051107 Firefox/1.5 | |
| Opera/9.0 (Windows NT 5.0; U; en) | |
| Lynx/2.8.4rel.1 libwww-FM/2.14 | |
| Mozilla/2.0 (compatible; Ask Jeeves/Teoma) | |
| Mozilla/3.0 (Slurp/si; slurp@inktomi.com; http://www.inktomi.com/slurp.html) | |
| Mozilla/5.0 (compatible; Yahoo! Slurp;http://help.yahoo.com/help/us/ysearch/slurp) | |
| Mozilla/5.0 (compatible; googlebot/2.1; +http://www.google.com/bot.html) | |
| Googlebot/2.1 (+http://www.google.com/bot.html) | |
| msnbot/1.0 (+http://search.msn.com/msnbot.htm) | |
| Baiduspider ( http://www.baidu.com/search/spider.htm) | |
| Mozilla/4.0 (compatible; GoogleToolbar 4.0.1306.3130-big; Windows XP 5.1; MSIE 7.0.5730.11) | |
| Mozilla/4.0 (compatible; GoogleToolbar 4.0.1306.3130-big; Windows XP 5.1; MSIE 6.0.2900.2180) | |
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