Class C Ip Checker | Best SEO Tools

Class C Ip Checker

Enter up to 40 Domains (Each Domain must be on separate line)



About Class C Ip Checker

Use this free tool to check Class C IP address of a list of websites. Knowing Class C IP Address is a big factor in Link building.  Google penalizes websites that cross link to each other from within the same class C ip address. These links are often filtered out of the ranking algorithms.

Duplicate Class C IP address in a list of websites means, these can be either hosted affiliate and internet marketing sites or potential reciprocal link exchange partners. Avoid cross-link from any domains that you own or any domains that share the same Class C Block of IPs.

What is Class C IP?

To reach a specific website, you need a domain name. And every domain name has at least one IP address associated with it. An IP address is a string of decimal numbers, each pair separated by a full stop (dot). An IP consist of 4 parts.

For example look at the IP address: 123.145.196.1 Consider this like AAA.BBB.CCC.xxx - the first part (123) is called A-class, the second part (145) B-class and the third part (196) C-class.

Many smaller host only mange one single or very few C-classes. So if you host all your sites the same place, it is difficult to get different C-classes.

How do I find out if my sites share the same Class C IP?

Simply enter your list of domain names (up to 20 domains) in the large text box and begin your test.