User-Agent header contains a feature character string, so that the network protocol for the peer initiates a request to identify user agent software application type, operating system, and the version number of software developers.
Here are some of the common variety of the browser User-Agent:
1) Chrome (Google)
Win7:
Mozilla / 5.0 (Windows NT 6.1; WOW64) AppleWebKit / 535.1 (KHTML, like Gecko) Chrome / 14.0.835.163 Safari / 535.1
Win10:
Mozilla / 5.0 (Windows NT 10.0; Win64; x64) AppleWebKit /537.36 (KHTML, like Gecko) Chrome / 73.0.3683.103 Safari / 537.36
Chrome 17.0 - the MAC
Mozilla / 5.0 (Macintosh; Intel Mac OS the X-10_7_0) AppleWebKit / 535.11 (KHTML, like Gecko) Chrome / 17.0.963.56 Safari / 535.11
2 ) Firefox (Firefox)
Win7:
Mozilla / 5.0 (Windows NT 6.1; WOW64; rv: 6.0) Gecko / Firefox 20,100,101 / 6.0
Firefox 4.0.1 - the MAC
Mozilla / 5.0 (Macintosh; Intel Mac OS the X-10.6; rv: 2.0.1 ) Gecko / 20,100,101 Firefox / 4.0.1
3) Safari (Safari is the Mac OS operating system of Apple computer's browser)
Safari 5.1 - the MAC
Mozilla / 5.0 (Macintosh; U; Intel Mac OS the X-10_6_8; EN-US) AppleWebKit / 534.50 (KHTML, like Gecko) Version / 5.1 Safari / 534.50
Safari 5.1 - Windows
Mozilla / 5.0 (Windows; U; Windows NT 6.1; EN -us) AppleWebKit / 534.50 (KHTML, like Gecko) Version / 5.1 Safari / 534.50
4) Opera (European friends browser can run on Windows, Mac and Linux operating system platforms three)
Opera 11.11 - the MAC
the User-Agent: Opera /9.80 (Macintosh; Intel Mac OS 10.6.8 the X-; U; EN) Presto / 2.8.131 Version / 11.11
Opera 11.11 - Windows
the User-Agent: Opera / 9.80 (Windows NT 6.1; U; EN) Presto / 2.8.131 Version / 11.11
. 5) IEs
IEs. 11
the Mozilla / 5.0 (the Windows NT 10.0; the WOW64; Trident / 7.0; RV: 11.0) like the Gecko
IEs 9.0
the Mozilla / 5.0 (compatible; MSIE 9.0; the Windows NT 6.1; Trident / 5.0;
IEs 8.0
The Mozilla / 4.0 (compatible; MSIE 8.0; the Windows NT 6.0; Trident / 4.0)
IEs 7.0
the Mozilla / 4.0 (compatible; MSIE 7.0; the Windows NT 6.0)
IEs 6.0
the Mozilla / 4.0 (compatible; MSIE 6.0; the Windows NT 5.1)
WinXP + IE8 :
the Mozilla / 4.0 (compatible; MSIE 8.0; the Windows NT 5.1; Trident / 4.0; GTB7.0)
WinXP + IE7:
the Mozilla / 4.0 (compatible; MSIE 7.0; the Windows NT 5.1)
WinXP + IE6:
the Mozilla / 4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
6) Maxthon
Maxthon (Maxthon)
the User-Agent: Mozilla / 4.0 (compatible; MSIE 7.0; Windows NT 5.1; Maxthon 2.0)
7) Sogou
Sogou browser 1.x
Mozilla / 4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident / 4.0; SE 2.X MetaSr 1.0; SE 2.X MetaSr 1.0; .NET CLR 2.0.50727; SE 2.X MetaSr 1.0)
8) 360
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; 360SE)
9) QQ浏览器
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; TencentTraveler 4.0)