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IP Blacklist Check Script - This is a simple PHP script to lookup for blacklisted IP against multiple DNSBLs at once.
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| <?php // Simple PHP script to lookup for blacklisted IP against multiple DNSBLs at once. ?> | |
| <html> | |
| <head> | |
| <title>DNSBL Lookup Tool - IP Blacklist Check Script</title> | |
| </head> | |
| <body> | |
| <h2>IP Blacklist Check Script</h2> | |
| <form action="" method="get"> | |
| <input type="text" value="" name="ip"/> | |
| <input type="submit" value="LOOKUP"/> | |
| </form> | |
| <?php | |
| /** | |
| * The IP-address to be looked up. | |
| * @param string $ip | |
| */ | |
| function dnsbllookup($ip) | |
| { | |
| // Add your preferred list of DNSBL's | |
| $dnsbl_lookup = [ | |
| "dnsbl-1.uceprotect.net", | |
| "dnsbl-2.uceprotect.net", | |
| "dnsbl-3.uceprotect.net", | |
| "dnsbl.dronebl.org", | |
| "dnsbl.sorbs.net", | |
| "zen.spamhaus.org", | |
| "bl.spamcop.net", | |
| "list.dsbl.org", | |
| "sbl.spamhaus.org", | |
| "xbl.spamhaus.org" | |
| ]; | |
| $listed = ""; | |
| if ($ip) { | |
| $reverse_ip = implode(".", array_reverse(explode(".", $ip))); | |
| foreach ($dnsbl_lookup as $host) { | |
| if (checkdnsrr($reverse_ip . "." . $host . ".", "A")) { | |
| $listed .= $reverse_ip . '.' . $host . ' <font color="red">Listed</font><br />'; | |
| } | |
| } | |
| } | |
| if (empty($listed)) { | |
| echo '"A" record was not found'; | |
| } else { | |
| echo $listed; | |
| } | |
| } | |
| if (isset($_GET['ip']) && $_GET['ip'] != null) { | |
| $ip = $_GET['ip']; | |
| if (filter_var($ip, FILTER_VALIDATE_IP)) { | |
| echo dnsbllookup($ip); | |
| } else { | |
| echo "Please enter a valid IP"; | |
| } | |
| } | |
| ?> | |
| </body> | |
| </html> |
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