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Hi I'm creating a game and I would like to be able to tell if a user is using a proxy. If they are than it basically puts a flag on their account. I can make it do the flag and all but I'm not exactly sure how to tell if a user is using a proxy. I've seen you can use headers but I'm not exactly sure which to look for and how you would check if a user "has" a header (besides the normal http_referrer and what not). Any help is greatly appreciated. Edit if ( $_SERVER['HTTP_X_FORWARDED_FOR'] || $_SERVER['HTTP_X_FORWARDED'] || $_SERVER['HTTP_FORWARDED_FOR'] || $_SERVER['HTTP_CLIENT_IP'] || $_SERVER['HTTP_VIA'] || in_array($_SERVER['REMOTE_PORT'], array(8080,80,6588,8000,3128,553,554)) || @fsockopen($_SERVER['REMOTE_ADDR'], 80, $errno, $errstr, 30)) { exit('Proxy detected'); } So this code mostly works, when the user is a proxy it quickly exits. But when they aren't it takes forever to load (about 10 seconds). Is there anyway to use this script but make it work faster? EDIT 2 Changed the timeout on fsockopen from 30 to 1 and it works much quicker and is still working. Thanks for the suggestions everyone :)

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