I'm not sure that insists on credit being given on, say, the credits page of your website, it refers to the source release. If you don't mention that you are u

I'm not sure that insists on credit being given on, say, the credits page of your website, it refers to the source release. If you don't mention that you are using X on the site then there is no requirement (as I interpret it) to say "X is made by". (Most people do link the X's website though, which I would call courteous attribution).