Enter up to 40 Domains (Each Domain must be on separate line)
How to use the Class C Ip Checker
- 1
Paste the domains, one per line.
- 2
Click submit.
- 3
Compare the Class C column - identical values mean the sites share a network.
About the Class C Ip Checker
The Class C IP Checker resolves a list of domains and shows the first three octets of each IP (the "Class C" block). Sites in the same block are usually on the same hosting network.
SEOs use it to see whether a set of linking sites is spread across independent hosts or all sits on one server, which can look like a link network.
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Frequently asked questions
What is a Class C range?
The first three numbers of an IPv4 address, e.g. 192.0.2.x. Addresses in the same range are usually in the same data centre.
Is sharing a Class C bad?
Not by itself - shared hosting puts thousands of unrelated sites on one range. It only matters if you are building or evaluating links.
How many domains can I check?
Enter one per line; keep it to a reasonable list so the check finishes quickly.