I've been pondering over this one for quite a while now, and after doing some research, nothing appeared to come up. So, my questions is, when you use a website builder like webs, weebly, or other similar sites, do you reserve rights to your website? My guess is a no, as it's mostly the act of the website, but I can also see a yes, as it is your artistic creation.
While not iron-clad, the rule of thumb is that to the author goes the copyright. Having written the code, a programmer owns the code's copyrights by default, or some company they've sold such rights to. Having produced the content, you or your sources own the copyrights to the content.