IP address training materials cover lookups, geolocation, traceroute, ping, and more.

Whois History Services

Comparing Whois History & IP Address Lookup Services

Whois History and IP address lookups are indispensable tools for investigators. With it, you can look back in time, pierce through privacy protection and assess who’s in control via name servers and other domains hosted on the same address. Whois History is normally a premium service and it’s sometimes available with other lookup tools like […]

IP Address record attributes - nesting dolls

IP Address Lookups: The Clues are Inside the Attributes

Finding out who’s in control of an IP address isn’t always as straight forward as you may think. Sometimes there’s more than one ISP mentioned in the record and that makes a difference when you need to know who’s in charge. The process of sifting through an IP address record is like taking apart a […]


Headers: The risk of spoofing IP Addresses

It happens to all of us. You’re asked to look at a website and you don’t have access to your anonymizer. Maybe the undercover laptop is at work. Maybe your proxy is down or running slow as molasses. So, what do you do? In today’s post, we’ll explore the role of HTTP Headers and how […]


IP Addresses: What every investigator needs to know

IP addresses are the foundation of Internet investigations. Resolving them is a bread-and-butter skill.   What’s an IP address? An IP address is like a telephone number. It contains a grouping of numbers that translate to a specific region, an Internet Service Provider (ISP), and ultimately their customer.  Anything connected to the Internet has an IP […]