$isMobile = false;
$isBot = false;
$op = strtolower($_SERVER['HTTP_X_OPERAMINI_PHONE']);
$ua = strtolower($_SERVER['HTTP_USER_AGENT']);
$ac = strtolower($_SERVER['HTTP_ACCEPT']);
$ip = $_SERVER['REMOTE_ADDR'];
$isMobile = strpos($ac, 'application/vnd.wap.xhtml+xml') !== false
|| $op != ''
|| strpos($ua, 'sony') !== false
|| strpos($ua, 'symbian') !== false
|| strpos($ua, 'nokia') !== false
|| strpos($ua, 'samsung') !== false
|| strpos($ua, 'mobile') !== false
|| strpos($ua, 'windows ce') !== false
|| strpos($ua, 'epoc') !== false
|| strpos($ua, 'opera mini') !== false
|| strpos($ua, 'nitro') !== false
|| strpos($ua, 'j2me') !== false
|| strpos($ua, 'midp-') !== false
|| strpos($ua, 'cldc-') !== false
|| strpos($ua, 'netfront') !== false
|| strpos($ua, 'mot') !== false
|| strpos($ua, 'up.browser') !== false
|| strpos($ua, 'up.link') !== false
|| strpos($ua, 'audiovox') !== false
|| strpos($ua, 'blackberry') !== false
|| strpos($ua, 'ericsson,') !== false
|| strpos($ua, 'panasonic') !== false
|| strpos($ua, 'philips') !== false
|| strpos($ua, 'sanyo') !== false
|| strpos($ua, 'sharp') !== false
|| strpos($ua, 'sie-') !== false
|| strpos($ua, 'portalmmm') !== false
|| strpos($ua, 'blazer') !== false
|| strpos($ua, 'avantgo') !== false
|| strpos($ua, 'danger') !== false
|| strpos($ua, 'palm') !== false
|| strpos($ua, 'series60') !== false
|| strpos($ua, 'palmsource') !== false
|| strpos($ua, 'pocketpc') !== false
|| strpos($ua, 'smartphone') !== false
|| strpos($ua, 'rover') !== false
|| strpos($ua, 'ipaq') !== false
|| strpos($ua, 'au-mic,') !== false
|| strpos($ua, 'alcatel') !== false
|| strpos($ua, 'ericy') !== false
|| strpos($ua, 'up.link') !== false
|| strpos($ua, 'vodafone/') !== false
|| strpos($ua, 'wap1.') !== false
|| strpos($ua, 'wap2.') !== false
|| strpos($ua, 'ipad') !== false
|| strpos($ua, 'android') != false;
$isBot = $ip == '66.249.65.39'
|| strpos($ua, 'googlebot') !== false
|| strpos($ua, 'mediapartners') !== false
|| strpos($ua, 'yahooysmcm') !== false
|| strpos($ua, 'baiduspider') !== false
|| strpos($ua, 'msnbot') !== false
|| strpos($ua, 'slurp') !== false
|| strpos($ua, 'ask') !== false
|| strpos($ua, 'teoma') !== false
|| strpos($ua, 'spider') !== false
|| strpos($ua, 'heritrix') !== false
|| strpos($ua, 'attentio') !== false
|| strpos($ua, 'twiceler') !== false
|| strpos($ua, 'irlbot') !== false
|| strpos($ua, 'fast crawler') !== false
|| strpos($ua, 'fastmobilecrawl') !== false
|| strpos($ua, 'jumpbot') !== false
|| strpos($ua, 'googlebot-mobile') !== false
|| strpos($ua, 'yahooseeker') !== false
|| strpos($ua, 'motionbot') !== false
|| strpos($ua, 'mediobot') !== false
|| strpos($ua, 'chtml generic') !== false
|| strpos($ua, 'nokia6230i/. fast crawler') !== false;
if($isMobile){
header('Location: http://www.ciozone.com/mobile/');
exit();
}
?>
Search Engine Evolution: From Archie to Bing
Search Engine Evolution: From Archie to Bing
Saturday, 13 June 2009
Page 8 of 11
Yahoo
Unlike eventual Web portal competitors like Lycos and Infoseek, Yahoo didn't start out as a tool to search the Internet as a whole, but rather a directory of Web sites compiled by founders David Filo and Jerry Yang. For its search engine technology, Yahoo turned to Inktomi, which was also supplying AOL, Excite and Microsoft, among others, with their search backbone. In June 2000, Yahoo switched to Google, using their search technology until 2004, when Yahoo rolled out its own engine--built from the acquisition of Inktomi in 2002 and Overture in 2003.
Currently, Yahoo is revamping its approach to search--increasing structured data and providing more context for users' queries--as it remains a distant second (third, if it falls behind Bing) to Google in the search game.
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