1) Goto the link below and find the IP Address of the website you want to gather information about. You may do this by writing its name in the Get IP box
(This step was optional just to tell you that it can be done this way also):-P
2)Goto run->type CMD
IN CMD type
ping Target _Website_Name . For Eg- ping google.com
ping target_website/computer_ip_address . For Eg:- 22.214.171.124
Now you will see several ping requests coming
Ping Google Server
1) If TTL <64 then the server is Linux based
2) If TTL>64 but <128 then the server is Windows bsaed
3) TTL>128 Mac and others.
From the above screenshot, it is clear that the servers of google are linux based.
Note:- In some Cases you may not get ping replies ( Eg. you try it on your friend’s PC ). Now This can have two reasons, The server is down ie.. The machine is not connected to internet. Else the most common reason, The Firewall is protecting that PC and is not allowing your request to access that system.