Two easy solutions: http-referer and find the source package

How to control http-referer in your browser:

# apt install xul-ext-refcontrol

And select the default you want. Either block or use base url if you want to be more discreet ;)

How to find the source package of a binary package

$ apt showsrc <binary-package-name>

I posted this because the solutions offered in planet debian were very convoluted