Hi Miriam, I would imagine it would depend on what you mean by "web sites", if you are talking about using the badge on forums I'm not sure if that would be possible since it is a flash coded badge and most forums don't allow the use of flash for their members signatures and such. But if you are talking about using it for your own personal web site it should be as easy as copy and paste the code where you would like to see the badge
If this info isn't of any help please give us more info so that someone can assist you better 😃