TBF from the ~luigi part of the url you can tell that it's probably one of those "web sites" allotted to each user on a university server or something similar,

TBF from the ~luigi part of the url you can tell that it's probably one of those "web sites" allotted to each user on a university server or something similar, eg. go to http://info.iet.unipi.it/~luigi/ http://info.iet.unipi.it/~luigi/ for his homepage.