I wonder: if the team of web site caretakers gets together several times a year, looks at the web pages, sometimes decides to change it, sometimes not -- is it

I wonder: if the team of web site caretakers gets together several times a year, looks at the web pages, sometimes decides to change it, sometimes not -- is it legal enough to put the current copyright? Or, coming from the other side: one could put forward an argument that the contents of a page is regenerated every time anyway (definitely regenerated at the client, and often regenerated on the server as well). I wonder if this argument holds water, I am not a lawyer in any way.