DNSBL Lookup DNSBL Lookup Blog

PHP script to lookup for blacklisted IP against multiple DNSBLs.

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DNSBL Lookup

To lookup for blacklisted IP addresses against 60 most active DNSBLs that currently on the internet.

How to Use?

Enter any suspicious IP address that you wanted to check into the form field and press the "LOOKUP" button

An animated loading bar will appear

Be patient, as the lookup may take up to a minute to complete

The status is shown as "Listed" if the IP address appear on any DNS blacklist or "Not Listed" if it isn't blacklisted... read more

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