一、JS判断搜索引擎来路跳转代码：
1.根据来源进行判断
var regexp = /.(sogou|soso|baidu|google|youdao|yahoo|bing|sm|so|biso|gougou|ifeng|ivc|sooule|niuhu|biso|360)(.[a-z0-9-]+){1,2}//ig;
var where = document.referrer;
if (!regexp.test(where)) {
? ? //一、直接跳转
? ? //window.location.href=’http://www.baidu.com’
? ? //二、根据设备决定是否跳转（以下是手机才跳转）
? ? var system = {
? ? ? ? win: false,
? ? ? ? mac: false,
? ? ? ? xll: false
? ? };
? ? var p = navigator.platform;
? ? system.win = p.indexOf(“Win”) == 0;
? ? system.mac = p.indexOf(“Mac”) == 0;
? ? system.x11 = (p == “X11”) || (p.indexOf(“Linux”) == 0);
? ? if (system.win || system.mac || system.xll) {} else {
? ? // 5秒之后再执行跳转
? ? ? ? setTimeout(‘window.location=”http://baidu.com/”‘, 5000)
? ? }
}
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二、PHP判断搜索引擎来路跳转代码：
$useragent = addslashes(strtolower($_SERVER[‘HTTP_USER_AGENT’]));
if (strpos($useragent, ‘googlebot’) !== false) {
? ? $bot = ‘Google’;
} elseif (strpos($useragent, ‘mediapartners-google’) !== false) {
? ? $bot = ‘Google Adsense’;
} elseif (strpos($useragent, ‘baiduspider’) !== false) {
? ? $bot = ‘Baidu’;
} elseif (strpos($useragent, ‘sogou spider’) !== false) {
? ? $bot = ‘Sogou’;
} elseif (strpos($useragent, ‘sogou web’) !== false) {
? ? $bot = ‘Sogou web’;
} elseif (strpos($useragent, ‘sosospider’) !== false) {
? ? $bot = ‘SOSO’;
} elseif (strpos($useragent, ‘360spider’) !== false) {
? ? $bot = ‘360Spider’;
} elseif (strpos($useragent, ‘yahoo’) !== false) {
? ? $bot = ‘Yahoo’;
} elseif (strpos($useragent, ‘msn’) !== false) {
? ? $bot = ‘MSN’;
} elseif (strpos($useragent, ‘msnbot’) !== false) {
? ? $bot = ‘msnbot’;
} elseif (strpos($useragent, ‘sohu’) !== false) {
? ? $bot = ‘Sohu’;
} elseif (strpos($useragent, ‘yodaoBot’) !== false) {
? ? $bot = ‘Yodao’;
} elseif (strpos($useragent, ‘twiceler’) !== false) {
? ? $bot = ‘Twiceler’;
} elseif (strpos($useragent, ‘ia_archiver’) !== false) {
? ? $bot = ‘Alexa_’;
} elseif (strpos($useragent, ‘iaarchiver’) !== false) {
? ? $bot = ‘Alexa’;
} elseif (strpos($useragent, ‘slurp’) !== false) {
? ? $bot = ‘雅虎’;
} elseif (strpos($useragent, ‘yisouspider’) !== false) {
? ? $bot = ‘神马’;
} elseif (strpos($useragent, ‘bot’) !== false) {
? ? $bot = ‘其它蜘蛛’;
}
if (isset($bot)) {
? ? //是蜘蛛，写出日志
? ? ?$fp = @fopen(‘bot.txt’,’a’);
? ? ?fwrite($fp,date(‘Y-m-d H:i:s’).” ”.$_SERVER[“REMOTE_ADDR”].” ”.$bot.
? ? ? ? ? “ ”.’http://’.$_SERVER[‘SERVER_NAME’].
? ? ? ? ? $_SERVER[“REQUEST_URI”].”
”);
”);
? ? ?fclose($fp);
} else {
? ? //不是蜘蛛，直接跳转
? ? header(‘Location: http://www.baidu.com/’);
}
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三、PHP判断搜索引擎来路跳转代码：
if( $_SERVER[‘HTTP_REFERER’] == “” ) //判断规则
{
header(“HTTP/1.1 404 Not Found”); //返回404状态码
header(“Status: 404 Not Found”); //返回404状态码
exit;
}
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