Have you ever looked at a site and wonder what webserver it is running (IIS/Apache/other)? This information is contained in the the webserver headings and are not really readable unless you specifically request them.
With the HTTP Headers tool available on Netwook-Tools.com, you can read these headers. Simply type in the web address, select the HTTP Headers option and click submit. Information on the webserver they are using will appear below.
This tool may not have much use outside of system admin use, but sometimes it is just fun to look at.
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