Proxy Checks to Prevent Credit Card Fraud

Post your questions about IP address geolocation here.
New Member
Posts: 1
Joined: Fri Jul 17, 2015 11:01 am

Proxy Checks to Prevent Credit Card Fraud

Post by ccoscina » Fri Jul 17, 2015 11:10 am

We have been having alot of fraudulent credit card orders going into our database lately. These orders are always placed by people using proxy servers to hide their real IP address. I know that it will be difficult to ever figure out their actual IP address, but many online tools have been able to determine that they are probably using a proxy.

However, manually checking these IP addresses takes up alot of time, especially since we're doing hundreds of orders a day (not a ton, I know, but we're a small company), so we don't have the time to check every IP address that goes through the system to see if it's behind a proxy.

I'm hoping I can figure out a way to write some code that automatically checks if the user is probably using a proxy, and then automatically sends us an email if that's the case. We're using .NET, but I also have experience with many languages/frameworks and can think outside the box to get this done. Basically, I just want to write some code to automate checks similar to the ones performed at:

If anyone give any suggestions about how I could pull this off, please let me know. Obtaining the IP addresses of our customers is the easy part - we have the data - I just need to figure out how to do these proxy checks on my end.

User avatar
Forum Administrator
Posts: 2464
Joined: Tue Mar 02, 2010 5:41 pm
Location: | ::1

Re: Proxy Checks to Prevent Credit Card Fraud

Post by Chrispcritters » Fri Jul 17, 2015 9:47 pm

We're working to provide such a service. In the mean time you may want to look into MaxMind's MinFraud service @
Founder & CEO of
You can follow me on Twitter and Facebook for some behind the scenes info.


Who is online

Users browsing this forum: No registered users and 1 guest