we know, check ip address is easy with ping command. However, how to check the domain in one IP address? It’s easy too. There are many sites providing service to check how many domain in the ip which we indicate.

1. Check the Domain’s IP address
in Command Prompt, you can use ping command to check the IP address.

ex. ping www.iplaytech.net

2. IP reverse domain check

by using the online tools which listed below, we can check how many domain exist in one IP. 

http://www.domaintools.com/reverse-ip/
http://www.myipneighbors.com/
http://www.yougetsignal.com/tools/web-sites-on-web-server/
http://whois.webhosting.info/

 
Why do we need to know about this ?
We can see our IP neighbors in order to avoid some trouble. ex. some neighbors’ sites are illegle. then your ip address is forbidden to access.