Getting Different IPs With My Craigslist Proxy?

For those who are going to setup their own Craigslist Proxy, making sure your IPs are from different C class IP ranges is something you should pay special attention to. C class IP ranges aren’t talked about much, but by not making sure you are using IPs on your proxy server from different C class IP ranges you are opening the door to be blocked by Craiglsist.

Their are 4 main ranges for IPs, A B C and D. These ranges are used to identify the network and network ID. Every computer online has an IP which allows it to communicate with other computers online, essentially functioning as an online mailing address or phone number. Most people know that by going offline and then back online you are able to change your IP, but usually the new IP you are assigned is within the same range. This makes it possible for networks to identify or make connections between user activity to identify what your new IP is as even though you did change your IP, it hasn’t changed enough so that one could make assumptions or try and track patterns of activity between your new and old IP. It is more than possible that this is exactly what Craigslist uses as part of their system to filter out spam. Making sure your proxy server has IPs from different C class IP ranges helps to prevent this problem.

As mentioned above, using IPs in the same C class IP range may make it possible for Craigslist to detect your activity even though you could be using several different accounts (since your new IP isn’t varied enough from the old one to make you look like a completely different user). This very same concept of using different C class IP ranges applies to proxy servers and is something you should pay great attention to. Usually, IPs that are assigned to proxy servers are normally within the same C class range, this is something you should try to avoid. Anonymity is very important for anyone posting on Craigslist, so be sure to get a Craigslist Proxy with IPs in different C class IP ranges.