Want to know an URL's IP? or what is the hosting provider of that URL? or else you wanna know what is the local time of the server which serves that URL?
Than you can simply learn all these informations and much more about one click, not really more.. You can't use HTTPS protocol but most web sites have already HTTP protocol provided and nearly all of them are located on same server..
This tools also tells that if website transferred or making a forwarding in realtime.