Want to see what information you are giving other web sites? This is a good, safe, site to do this. It shows the browser, internet address, type of connection (Possibly with the exception of a VPN connection) , country of origin. Name of ISP, the location and ip addreses of DNS servers being used, whether you are using TOR or anonymisers. Useful for trouble shooting encrypted connections, which might be leaking information you dont want released.
About this site
Whoer.net - find out your IP address location: detect IP location, ISP, country, city