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/9.80 (Windows NT 6.1; WOW64; OperaPortable) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; Zetetic_20_3) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 5.2; WOW64; Edition United States Local) Presto/2.12.388 Version/12.16
• Opera/9.80 (X11; Linux zvav; U; pl) Presto/2.12.423 Version/12.16
• Opera/9.80 (Macintosh; Intel Mac OS X 10.14.1) Presto/2.12.388 Version/12.16 IABrowser3684447f965
• Opera/12.16 (Windows NT 5.1; U; NE Presto/2.9.165 Version/11.00)
• Opera/12.16 (Windows NT 6.0; U; BG Presto/2.9.171 Version/10.00)
• Opera/12.16 (X11; Linux x86_64; U; HR Presto/2.9.175 Version/11.00)
• Opera/12.16 (Windows NT 6.3; U; PL Presto/2.9.162 Version/12.00)
• Opera/12.16 (Windows NT 5.2; U; ZH Presto/2.9.165 Version/12.00)
• Opera/12.16 (Windows NT 6.0; U; AR Presto/2.9.189 Version/11.00)
• Opera/12.16 (Windows NT 6.1; U; EO Presto/2.9.184 Version/10.00)
• Opera/12.16 (Windows NT 6.2; U; MT Presto/2.9.181 Version/10.00)
• Opera/12.16 (Windows NT 6.0; U; ET Presto/2.9.165 Version/10.00)
• Opera/12.16 (Windows NT 5.2; U; HU Presto/2.9.183 Version/12.00)
• Opera/12.16 (Windows NT 6.1; U; LT Presto/2.9.176 Version/10.00)
• Opera/12.16 (Windows NT 6.3; U; LT Presto/2.9.160 Version/11.00)
• Opera/12.16 (Windows NT 6.0; U; GL Presto/2.9.189 Version/11.00)
• Opera/12.16 (Windows NT 6.1; U; BR Presto/2.9.163 Version/10.00)
• Opera/12.16 (Windows NT 5.1; U; BE Presto/2.9.179 Version/11.00)
• Opera/12.16 (Windows NT 5.3; U; YI Presto/2.9.176 Version/12.00)
• Opera/12.16 (Windows NT 6.3; U; HU Presto/2.9.172 Version/10.00)
• Opera/12.16 (Windows NT 6.0; U; SV Presto/2.9.162 Version/10.00)
• Opera/12.16 (Windows NT 5.1; U; NO Presto/2.9.173 Version/12.00)
• Opera/12.16 (Windows NT 6.0; U; MY Presto/2.9.187 Version/10.00)
• Opera/12.16 (Windows NT 5.1; U; RM Presto/2.9.168 Version/12.00)
• Opera/12.16 (Windows NT 6.0; U; HE Presto/2.9.186 Version/11.00)
• Opera/9.80 (X11; Linux zvav; U; ja) Presto/2.12.423 Version/12.16
• Opera/9.80 (X11; Linux i386) Presto/2.12.388 Version/12.16
• Opera/9.80 (X11; Linux zvav; U; cs) Presto/2.12.423 Version/12.16
• Opera/9.80 (Macintosh; Intel Mac OS X 10.10) Presto/2.12 Version/12.16
• Opera/9.80 (X11; Linux; rv:48.0; Opera Mini/58.0.2254/191.239; U; US) Presto/2.12.423 Version/12.16
• Opera/9.80 (Windows NT 6.2; WOW64; MRA 6.1 (build 6573)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 5.1; MRA 6.1 (build 6669)) Presto/2.12.388 Version/12.16
• Opera/9.80 (X11; Linux; rv:62.0; Opera Mini/58.0.2254/191.239; U; US) Presto/2.12.423 Version/12.16
• Opera/9.80 (Linux; rv:48.0; Opera Mini/58.0.2254/191.239; U; US) Presto/2.12.423 Version/12.16
• Opera/9.80 (Linux; rv:48.0; Opera Mini/58.0.2254/191.239; U; en) Presto/2.12.423 Version/12.16
• Opera/9.80 (X11; Linux i686; Ubuntu/14.10) Presto/2.12 Version/12.16
• Opera/9.80 (X11; Linux zvav; U; tr) Presto/2.12.423 Version/12.16
• Opera/9.80 (X11; Linux zvav; U; gsw) Presto/2.12.423 Version/12.16
• Opera/9.80 (Linux; rv:48.0; Opera Mini/24.0.2254/62.178; U; en) Presto/2.12.423 Version/12.16
• Opera/9.80 (X11; Linux x86_64; U; Linux Mint; en) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 5.1; Edition Yx 01) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 6.1; Edition Yx 01) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 6.3); U) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.2; WOW64; Edition Campaign 19) Presto/2.12.388 Version/12.16
• Opera/9.80 (X11; Linux i686; Edition Linux Mint) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; MRA 8.1 (build 6337)) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 6.0; Edition Campaign 21) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 5.1; WOW64) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 5.1; MRA 6.3 (build 8043)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; MRA 8.1 (build 6345)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; Win64; x64; YB/3.5.1) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 5.1; Edition Indonesian Local) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; Edition United Kingdom Local) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; MRA 8.2 (build 6901)) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 6.2; WOW64); U) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; Edition Indonesian Local) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 5.1; WOW64; MRA 8.2 (build 6901)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 5.1; MRA 6.2 (build 7528)) Presto/2.12 Version/12.16
• Opera/9.80 (Macintosh; Intel Mac OS X 10.8) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; Edition DriverPack) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 5.1; MRA 6.0 (build 6089)) Presto/2.12 Version/12.16
• Opera/9.80 (Macintosh; Intel Mac OS X 10.5.8) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; MRA 6.2 (build 7314)) Presto/2.12 Version/12.16
• Opera/9.80 (Windows NT 6.0; WOW64) Presto/2.12 Version/12.16
• Opera/9.80 (X11; Linux zvav; U; ro) Presto/2.12.423 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; MRA 8.0 (build 6015)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; MRA 6.1 (build 6669)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; MRA 6.0 (build 6042)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; MRA 6.1 (build 6661)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; CD6163B7-CB56-222B-A403-A0DC7894DBF1; MRA 8.0 (build 6019)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.2; MRA 6.2 (build 7314)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; MRA 5.5 (build 02812)) Presto/2.12.388 Version/12.16
• Opera/9.80 (X11; FreeBSD 9.2-BETA2 amd64) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; U; ru) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; MRA 6.0 (build 5997)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; MRA 6.0 (build 5667)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 5.1; MRA 8.1 (build 6338)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 5.1; ; MRSPUTNIK OW 2, 3, 0, 216) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.0; WOW64; Edition Yx) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.0; MRSPUTNIK OW 2, 3, 0, 238) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; Yandex Browser; MRA 5.7 (build 03789)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.2; WOW64; MRA 6.1 (build 6673)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.2; MRA 6.1 (build 6561)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.0; MRA 6.0 (build 6060)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.0; MRA 5.4 (build 02652)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; MRSPUTNIK OW 2, 3, 0, 289) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 5.2; MRA 6.2 (build 7188)) Presto/2.12.388 Version/12.16
• Opera/9.80 (X11; FreeBSD 9.2-RELEASE i386) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 5.1; MRA 5.7 (build 03757)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.2; WOW64; MRA 8.0 (build 5988)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.2; WOW64; MRA 6.3 (build 8003)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; WOW64; MRA 6.0 (build 6044)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; MRA 5.10 (build 5336)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.1; MRA 5.10 (build 5217)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.0; MRA 8.1 (build 6337)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.0; MRA 6.2 (build 7528)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 6.0; MRA 6.0 (build 6083)) Presto/2.12.388 Version/12.16
• Opera/9.80 (Windows NT 5.2; MRA 6.2 (build 7194)) Presto/2.12.388 Version/12.16