Enter any suspicious IP address that you wanted to check into the form field and press the "LOOKUP" button
<html>
<head>
<title>DNSBL Lookup Tool - IP Blacklist Check Script</title>
</head>
<body>
<form action="" method="get">
<input type="text" value="" name="ip" />
<input type="submit" value="LOOKUP" />
</form>
<?php
/***************************************************************************************
This is a simple PHP script to lookup for blacklisted IP against multiple DNSBLs at once.
You are free to use the script, modify it, and/or redistribute the files as you wish.
Homepage: http://dnsbllookup.com
****************************************************************************************/
function dnsbllookup($ip){
$dnsbl_lookup=array("dnsbl-1.uceprotect.net","dnsbl-2.uceprotect.net","dnsbl-3.uceprotect.net","dnsbl.dronebl.org","dnsbl.sorbs.net","zen.spamhaus.org"); // Add your preferred list of DNSBL's
if($ip){
$reverse_ip = implode(".", array_reverse(explode(".", $ip)));
foreach($dnsbl_lookup as $host){
if(checkdnsrr($reverse_ip.".".$host.".", "A")){
$listed .= $reverse_ip.'.'.$host.' <font color="red">Listed</font><br />';
}
}
}
if($listed){
return $listed;
}else{
return '"A" record was not found';
}
}
$ip=$_GET['ip'];
if(isset($_GET['ip']) && $_GET['ip']!=null){
if(filter_var($ip,FILTER_VALIDATE_IP)){
echo dnsbllookup($ip);
}else{
echo "Please enter a valid IP";
}
}
?>
</body>
</html>
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