For more information, please visit the following pages:

• Opera
• Opera Software ASA
• Presto

Latest user agents (if you are looking for complete list, download it here):

• Opera/9.52 (Windows NT 6.2; U; MRA 5.9 (build 4953);
• Opera/9.52 (X11; Linux x86_64;
• Opera/9.52.(Windows 95; yue-HK) Presto/2.9.160 Version/11.00
• Opera/9.52 (Windows NT 5.3; U; HE Presto/2.9.178 Version/10.00)
• Opera/9.52 (Windows NT 6.1; U; MS Presto/2.9.170 Version/12.00)
• Opera/9.52 (Windows NT 6.0; U; GD Presto/2.9.176 Version/12.00)
• Opera/9.52 (Windows NT 5.2; U; LA Presto/2.9.162 Version/11.00)
• Opera/9.52 (Windows NT 5.1; U; ID Presto/2.9.174 Version/11.00)
• Opera/9.52 (Windows NT 6.2; U; KW Presto/2.9.181 Version/12.00)
• Opera/9.52 (Windows NT 6.2; U; AN Presto/2.9.186 Version/12.00)
• Opera/9.52 (Windows NT 5.0; U; SE Presto/2.9.171 Version/11.00)
• Opera/9.52 (Windows NT 6.3; U; CS Presto/2.9.173 Version/11.00)
• Opera/9.52 (Windows NT 5.2; U; ES Presto/2.9.170 Version/12.00)
• Opera/9.52 (Windows NT 5.1; U; AB Presto/2.9.184 Version/11.00)
• Opera/9.52 (X11; Linux x86_64; U; AF Presto/2.9.179 Version/12.00)
• Opera/9.52 (Windows NT 6.2; U; SL Presto/2.9.163 Version/10.00)
• Opera/9.52 (Windows NT 6.2; U; FO Presto/2.9.168 Version/12.00)
• Opera/9.52 (Windows NT 6.0; U; ET Presto/2.9.163 Version/11.00)
• Opera/9.52 (Windows NT 5.2; U; MT Presto/2.9.180 Version/12.00)
• Opera/9.52 (Windows NT 5.3; U; MT Presto/2.9.187 Version/10.00)
• Opera/9.52 (Windows NT 6.2; U; LI Presto/2.9.181 Version/10.00)
• Opera/9.52 (Windows NT 5.3; U; FO Presto/2.9.170 Version/12.00)
• Opera/9.52 (Windows NT 6.2; U; CO Presto/2.9.180 Version/12.00)
• Opera/9.52 (Windows NT 5.2; U; SW Presto/2.9.166 Version/12.00)
• Opera/9.52 (Windows NT 6.0; U; SR Presto/2.9.163 Version/10.00)
• Opera/9.52 (Windows NT 6.1; U; SW Presto/2.9.167 Version/11.00)
• Mozilla/5.0 (Windows NT 5.1; U; ; rv:1.8.1) Gecko/20061208 Firefox/2.0.0 Opera 9.52
• Opera/9.52 (Macintosh; Intel Mac OS X; U; pt-BR)
• Opera/9.52 (Windows NT 5.2; U; ru
• Opera/9.52 (Windows NT 6.0; U; Opera/9.52 (X11; Linux x86_64; U); en)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.6 (build 03399); en)
• Opera/9.52 (X11; Linux i686; U; en)
• Opera/9.52 (Windows NT 5.2; U; MRA 6.0 (build 5966); ru)
• Opera/9.52 (Windows NT 5.0; U; en)
• Opera/9.52 (Macintosh; PPC Mac OS X; U; ja)
• Opera/9.52 (Macintosh; Intel Mac OS X; U; pt)
• Opera/9.52 (Windows NT 5.1; U; MRA 6.1 (build 6578); MRSPUTNIK OW 2, 3, 0, 288; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.7 (build 03757); MRSPUTNIK OW 2, 3, 0, 288; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.7 (build 03796); ru)
• Mozilla/5.0 (Windows NT 5.1; U; ru; rv:1.8.1) Gecko/20061208 Firefox/2.0.0 Opera 9.52
• Opera/9.52 (Windows NT 6.0; U; MRSPUTNIK OW 2, 3, 0, 228; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.6 (build 03399); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.3 (build 02560); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.6 (build 03402); MRSPUTNIK OW 2, 3, 0, 104; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.7 (build 03790); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.7 (build 03773); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.10 (build 5328); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.6 (build 03278); MRSPUTNIK OW 2, 3, 0, 228; ru)
• Opera/9.52 (Windows NT 5.1; U; MRSPUTNIK OW 2, 3, 0, 289; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.3 (build 02557); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.5 (build 02812); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.5 (build 02842); MRSPUTNIK OW 2, 3, 0, 228; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.7 (build 03790); MRSPUTNIK OW 2, 3, 0, 213; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.6 (build 03278); ru)
• Opera/9.52 (Windows NT 5.1; U; ; MRSPUTNIK OW 2, 2, 0, 94; ru)
• Opera/9.52 (Windows NT 6.0; U; MRA 5.3 (build 02552); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.4 (build 02652); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.4 (build 02647); ru)
• Opera/9.52 (Windows NT 5.1; U; MRSPUTNIK OW 2, 3, 0, 218; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.7 (build 03797); ru)
• Opera/9.52 (Windows NT 6.0; U; MRA 5.3 (build 02564); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.6 (build 03278); MRSPUTNIK OW 2, 2, 0, 94; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.5 (build 02842); ru)
• Opera/9.52 (Windows NT 5.0; U; ru)
• Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; ru) Opera 9.52
• Opera/9.52 (Windows NT 6.1; U; MRSPUTNIK OW 2, 3, 0, 289; MRA 5.5 (build 02842); ru)
• Opera/9.52 (X11; Linux x86_64; U; ru)
• Opera/9.52 (Windows NT 5.1; U; en) Lightning/5.4
• Opera/9.52 (X11; Linux x86_64; U)
• Opera/9.52 (Windows NT 6.0; U; fr)
• Opera/9.52 (X11; Linux ppc; U; de)
• Opera/9.52 (Windows NT 6.0; U; ru)
• Opera/9.52 (Macintosh; Intel Mac OS X; U; en)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.6 (build 03270); tr)
• Opera/9.52 (Windows NT 6.0; U; MRA 6.0 (build 6015); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.6 (build 03385); MRSPUTNIK OW 2, 3, 0, 104; ru)
• Opera/9.52 (Windows NT 5.0; U; MRA 5.4 (build 02647); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.7 (build 03649); MRSPUTNIK OW 2, 3, 0, 216; ru)
• Opera/9.52 (Windows NT 6.0; U; de)
• Opera/9.52 (Windows NT 6.1; U; MRA 5.9 (build 4953); ru)
• Opera/9.52 (Windows NT 6.1; U; ; MRSPUTNIK OW; MRA 5.8 (build 4157); ru)
• Opera/9.52 (Windows ME; U; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.6 (build 03402); MRSPUTNIK OW 2, 3, 0, 238; ru)
• Opera/9.52 (Windows NT 6.2; U; MRA 5.9 (build 4953); ru)
• Opera/9.52 (Windows NT 6.2; U; ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.6 (build 03399); MRSPUTNIK OW 2, 3, 0, 288; ru)
• Opera/9.52 (Windows NT 6.0; U; MRA 5.5 (build 02842); ru)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.4 (build 02614); ru)
• Opera/9.52 (Windows NT 6.1; U; MRA 6.0 (build 6015); ru)
• Opera/9.52 (Windows NT 6.2; U; MRA 5.10 (build 5288); ru)
• Opera/9.52 (Windows NT 6.2; U; MRA 5.3 (build 02560); ru)
• Opera/9.52 (Windows NT 5.1; U; hu)
• Opera/9.52 (Macintosh; PPC Mac OS X; U; fr)
• Mozilla/5.0 (Windows NT 5.1; U; de; rv:1.8.1) Gecko/20061208 Firefox/2.0.0 Opera 9.52
• Opera/9.52 (Windows NT 5.1; U; MRA 6.0 (build 6015); ru)
• Opera/9.52 (Windows NT 5.1; U; en)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.5 (build 02828); MRSPUTNIK OW; ru)
• Opera/9.52 (Windows NT 6.1; U; MRA 5.7 (build 03653); MRSPUTNIK OW 2, 3, 0, 216; ru)
• Opera/9.52 (Windows NT 5.1; U; es-LA)
• Opera/9.52 (Windows NT 5.1; U; MRA 5.7 (build 03638); MRSPUTNIK OW 2, 3, 0, 213; ru)