Sample User-Agent Log

The following listing is philosophe.com's user-agent log (from April '99), reformatted
into a simple alphabetical and hierarchical sorting and with all multiple entries removed.
As you can see, even for such a small site as this, there are a bewildering variety
of browsers and browser references recorded. You can imagine the increased range
of browsers that might hit a publicized and advertised commerce site.

Microsoft Internet Explorer
Mozilla/2.0 (compatible; MSIE 3.0; AOL 4.0; Windows 3.1)
Mozilla/2.0 (compatible; MSIE 3.0; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.0; AOL 3.0; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.0; AK; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.01; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.01; AOL 4.0; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.01; Windows NT)
Mozilla/2.0 (compatible; MSIE 3.01; AK; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.02; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.02; AK; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.02; Update a; AK; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.02; Update a; AOL 4.0; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.02; AOL 4.0; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.02; AK; AOL 4.0; Windows 95)
Mozilla/2.0 (compatible; MSIE 3.02; Update a; Windows 95)
Mozilla/2.0 (compatible; T-H-U-N-D-E-R-S-T-O-N-E)
Mozilla/2.0 (compatible; EZResult -- Internet Search Engine)
Mozilla/2.02 [fr] (Macintosh; I; PPC)
Mozilla/2.02 (X11; I; HP-UX A.09.05 9000/715)
Mozilla/2.02 (WinNT; I)
Mozilla/2.02 (Win95; U)
Mozilla/3.Mozilla/2.01 (Win95; I)
Mozilla/3.0 (Win16; I)
Mozilla/3.0 (compatible; Win95)
Mozilla/3.0 (Win95; I; 16bit)
Mozilla/3.0 (Win95; I)
Mozilla/3.0 (Win95; U)
Mozilla/3.0Gold (Win95; I)
Mozilla/3.0 WebTV/1.2 (compatible; MSIE 2.0)
Mozilla/3.0C-KPMG  (Win95; U)
Mozilla/3.01 (compatible;)
Mozilla/3.01 (Win16; I)
Mozilla/3.01 (Win95; I)
Mozilla/3.01 (Win95; U)
Mozilla/3.01C-PBWG  (Win95; U)
Mozilla/3.01C-KIT  (Win95; U)
Mozilla/3.01 (WinNT; I)
Mozilla/3.01SC-SGI (X11; I; IRIX64 6.2 IP28)
Mozilla/3.01Gold [fr] (Win16; I)
Mozilla/3.01Gold (Win95; I)
Mozilla/3.01Gold (Win95; U)
Mozilla/3.01Gold (WinNT; I)
Mozilla/3.01GoldC-C-THA1_1  (WinNT; I)  
Mozilla/3.01 [fr] (Macintosh; I; 68K)
Mozilla/3.02 (WinNT; I)
Mozilla/3.04 (Win95; I)
Mozilla/3.04Gold (Win95; I)
Mozilla/4.x (Win95)
Mozilla/4.0 (compatible; MSIE 4.0; Windows 95)
Mozilla/4.0 (compatible; MSIE 4.0; Windows 95; CLEAR Net-CD2)
Mozilla/4.0 (compatible; MSIE 4.0; MSN 2.5; Windows 95)
Mozilla/4.0 (compatible; MSIE 4.01; AOL 3.0; Windows 95)
Mozilla/4.0 (compatible; MSIE 4.01; AOL 4.0; Windows 95)
Mozilla/4.0 (compatible; MSIE 4.01; AOL 4.0; Windows 95; digitalie40)
Mozilla/4.0 (compatible; MSIE 4.01; AOL 4.0; Windows 98)
Mozilla/4.0 (compatible; MSIE 4.01; Windows 95)
Mozilla/4.0 (compatible; MSIE 4.01; Windows 98)
Mozilla/4.0 (compatible; MSIE 4.01; Windows NT)
Mozilla/4.0 (compatible; MSIE 4.01; Windows 95; Gateway2000)
Mozilla/4.0 (compatible; MSIE 4.01; Windows 95; In2Home)
Mozilla/4.0 (compatible; MSIE 4.01; Windows 95; freeserve_IE4)
Mozilla/4.0 (compatible; MSIE 4.01; MSN 2.5; MSN 2.5; Windows 95)
Mozilla/4.0 (compatible; MSIE 4.01; MSN 2.6; Windows 95)
Mozilla/4.0 (compatible; MSIE 4.0; MSN 2.6; Windows 95; Gateway2000)
Mozilla/4.0 (compatible; MSIE 4.01; MSN 2.5; Windows 98)
Mozilla/4.0 (compatible; MSIE 4.01; Windows NT; ; ITLS Boston)
Mozilla/4.0 (compatible; MSIE 5.0; MSN 2.6; Windows 98)
Mozilla/4.0 (compatible; MSIE 4.01; MSN 2.5; Windows 95)
Mozilla/4.0 (compatible; MSIE 4.0; MSN 2.5; MSN 2.5; Windows 95)
Mozilla/4.0 (compatible; MSIE 4.01; MSN 2.5; MSN 2.5; AOL 4.0; Windows 98)
Mozilla/4.0 (compatible; MSIE 4.01; AOL 3.0; Windows 98)
Mozilla/4.0 (compatible; MSIE 4.01; AOL 4.0; Windows 95; Toshiba Corporation)
Mozilla/4.0 (compatible; MSIE 4.01; AOL 4.0; Windows 98; c_athome)
Mozilla/4.0 (compatible; MSIE 4.01; Windows 98; SimulBrowse 3.0)
Mozilla/4.0 (compatible; MSIE 4.01; MSN 2.5; AOL 4.0; Windows 98)
Mozilla/4.0 (compatible; MSIE 4.5; Mac_PowerPC)
Mozilla/4.0 (compatible; MSIE 5.0; Windows 98)
Mozilla/4.0 (compatible; MSIE 5.0; AOL 4.0; Windows 95; c_athome)
Mozilla/4.0 (compatible; MSIE 5.0; AOL 4.0; Windows 95; c_athome; DigExt)
Mozilla/4.0 (compatible; MSIE 5.0; Windows 98; DigExt)
Mozilla/4.0 (compatible; MSIE 5.0; Windows 95)
Mozilla/4.0 (compatible; MSIE 5.0; Windows 98; CNETHomeBuild03171999)
Mozilla/4.0 (compatible; MSIE 5.0; Windows 95; DigExt; UKPORTAL)
Mozilla/4.0 (compatible; MSIE 5.0; Windows 95; DigExt)
Mozilla/4.0 (compatible; MSIE 5.0; Windows 95; Infinity Online 
Mozilla/4.0 (compatible; MSIE 5.0; Windows NT)
Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; SPEED)
Mozilla/4.0 (compatible; MSIE 5.0; MSN 2.5; AOL 4.0; Windows 98; Compaq; AT&T WNS2.5 IE4.01)
Mozilla/4.0 (compatible; MSIE 5.0b2; Windows NT; ITGE-BLD1013.9)
Mozilla/4.01 [en] (Win95; U)
Mozilla/4.01 [en] (Win95; I)
Mozilla/4.01 [en] (WinNT; U)
Mozilla/4.02 [en] (Win95; I)
Mozilla/4.03 [en] (Win95; I)
Mozilla/4.03 [fr] (Win16; I)
Mozilla/4.03 [fr] (Win95; I)
Mozilla/4.03 [fr] (Win95; U)
Mozilla/4.03 [en] (WinNT; I)
Mozilla/4.03 [nl] (Win95; I)
Mozilla/4.03 [en] (Win95; U)
Mozilla/4.03 [en] (Win95; I ;Nav)
Mozilla/4.04 [en] (Win95; I; 16bit)
Mozilla/4.04 [en] (Win95; U)
Mozilla/4.04 [en] (Win95; I)
Mozilla/4.04 [en] (Win95; I ;Nav)
Mozilla/4.04 [en] (WinNT; I ;Nav)
Mozilla/4.04 [en] (WinNT; U)
Mozilla/4.04 [en] (WinNT; I)
Mozilla/4.04 [fr] (Win95; I ;Nav)
Mozilla/4.04 [en]C-3M/NCStd404  (WinNT; I)
Mozilla/4.04 [en] (X11; U; SunOS 5.6 sun4u) via NetCache version 3.1.2d-Solaris
Mozilla/4.04 [en]C-AIT  (Win95; I)
Mozilla/4.05 [en] (Win16; U)
Mozilla/4.05 [en] (Win95; I)
Mozilla/4.05 [en] (Win95; I ;Nav)
Mozilla/4.05 [en] (Win95; U ;Nav)
Mozilla/4.05 [fr]C-NECCK  (Win95; I)
Mozilla/4.05 [en] (WinNT; I)
Mozilla/4.05 [fr] (WinNT; I)
Mozilla/4.05 [en]C-CCK-MCD   (WinNT; I)
Mozilla/4.05 (Macintosh; I; 68K)
Mozilla/4.05 (Macintosh; I; PPC, Nav)
Mozilla/4.05 (Macintosh; I; PPC)
Mozilla/4.05 [en] (Win95; U)
Mozilla/4.05 [en]C-mc405a  (WinNT; U)
Mozilla/4.05 [en]C-AtHome0404  (Win95; U)
Mozilla/4.06 [en]C-gatewaynet  (Win98; I)
Mozilla/4.06 [en] (Win95; U ;Nav)
Mozilla/4.06 [en]C-FISC-01  (WinNT; U)
Mozilla/4.06 [en] (Win95; I)
Mozilla/4.06 [en] (Win95; U)
Mozilla/4.06 [en] (WinNT; I)
Mozilla/4.06 [en] (Win98; I ;Nav)
Mozilla/4.06 [en]C-BS19981019  (WinNT; I)
Mozilla/4.06 [en] (WinNT; I ;Nav)
Mozilla/4.06 [en] (Win16; I ;Nav)
Mozilla/4.06 [en] (Win98; I)  via proxy gateway  IBM-ICS/4.1
Mozilla/4.07 [en] (Win95; U ;Nav)
Mozilla/4.07 [en] (Win98; I)
Mozilla/4.07 [en] (WinNT; I ;Nav)
Mozilla/4.07 [en] (WinNT; U ;Nav)
Mozilla/4.07 [en] (Win95; I ;Nav)
Mozilla/4.08 [en] (Win98; I)
Mozilla/4.08 [en] (Win95; I ;Nav)
Mozilla/4.08 [en] (WinNT; I)
Mozilla/4.08 [en] (WinNT; I ;Nav)
Mozilla/4.08 [en] (Win95; U ;Nav)
Mozilla/4.08 [en] (Win98; I ;Nav)
Mozilla/4.08 (Macintosh; I; PPC, Nav)
Mozilla/4.08 [en] (X11; I; AIX 4.1)
Mozilla/4.5 [en] (Win95; I)
Mozilla/4.5 [en] (Win95; U)
Mozilla/4.5 [en] (Win98; I)
Mozilla/4.5 [en] (Win98; U)
Mozilla/4.5 [en] (WinNT; I)
Mozilla/4.5 [en] (WinNT; U)
Mozilla/4.5 [fr] (Win95; I)
Mozilla/4.5 [en]C-CCK-MCD {Sony}  (Win98; U)
Mozilla/4.5 [en]C-CCK-MCD 1.0  (Win95; U)
Mozilla/4.5 [en]C-CCK-MCD   (Win98; U)
Mozilla/4.5 [en] (X11; U; SunOS 5.6 sun4m)
Mozilla/4.5 [en]C-CCK-MCD   (Win98; U)
Mozilla/4.5 [en]C-CCK-MCD {TLC;RETAIL}  (Win98; U)
Mozilla/4.51 [en] (Win98; I)
Mozilla/4.51 [en] (Win98; U)
Mozilla/4.51 [en] (WinNT; I)
Mozilla/4.51 [en]C-monwin/012  (Win95; I)
Mozilla/4.51 [en] (X11; U; SunOS 5.6 sun4u)
Mozilla/4.51 [en] (WinNT; U)
Mozilla/4.51 (Macintosh; U; PPC)
Mozilla/4.51 [en] (Win95; I)
Mozilla/4.51 [en] (Win95; U)
Mozilla/5.0 (compatible; MSIE 5.0; Windows NT/95/98))
---- non-browser agents ----
ArchitextSpider
Googlebot/1.0 (googlebot@googlebot.com http://googlebot.com/)
Gulliver/1.2
libwww/2.17
libwww-perl/5.36
libwww-perl/5.42
LinkWalker
Lycos-Proxy
LWP::Simple/5.41
Scooter/2.0 G.R.A.B. V1.1.0
Slurp/2.0 (slurp@inktomi.com; http://www.inktomi.com/slurp.html)
via Harvest Cache version 1.4pl3
via NetCache version 3.1.2cP1-Solaris
via proxy gateway  CERN-HTTPD/3.0 
WebCompass 2.0