Create simple opensource tool

hello, I am searching for an opensource tool, no matter what kind of tool This tool must fit on [login to view URL] The meaning of the project is that we want to place a backlink on [login to view URL] for our linkbuilding First we need to create an open source thing and than place it on [login to view URL] Teh best is something with telephonenumber, it must the easiest thing but must on that webpage\ An example is this [login to view URL] hope can help me gr marcel