CallerIP 

CallerIP monitors connections to your system, identifies harmful backdoors used for hacker attacks. The country location is identified for each IP, worldwide WHOIS lookups show domain and network contact info, including abuse reporting information.
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DomainInspect 

Advanced domain name checker designed to do WHOIS lookups and link popularity checks of more than 100 TLDs. Domain names can be inputted manually, imported from file, or generated automatically by using keywords.
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