What is a Crazy IP?
A Crazy IP is an IP address that’s in the pure numerical format rather than the regular ‘dotted
quad’ format. For instance, BBC News’ IP address is 212.58.226.30 in the
dotted-quad notation. Based on this, its Crazy IP address is 3560628766.
What use is a Crazy IP?
Crazy IPs can often be used in place of a regular IP address. You can ‘ping’ them, FTP to
them, and (if your browser doesn’t block them) browse to them. (Note - these no longer seem to
work in Internet Explorer.)
Because of this ability to mask the server address, some dodgy spam and porn sites use this as a way of
hiding the real domain serving a URL.
How can I find out the Crazy IP of my server?
Just enter the name or IP address of the server in the field below and press ‘Encode’
How can I find out the real IP address from a Crazy IP address?
Just enter the Crazy IP address in the field below and press ‘Decode’
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