Authorised mirror, or...?

I just spotted an odd referrer in the logs of my domain, philmfreax.com

http://ncptool.com/mal/MO/philm/philfranks.html

Who is ncptool.com:

https://whois.domaintools.com/ncptool.com

http://ncptool.com/ seems to mirror the whole of ibiblio.org

We at ibiblio do not have any relationship with the owners of that domain.

Thanks for your response.