Could you give me the easiest way to make a note of websites that i have visited in a list or maybe a database using python? [closed]

I need the widget that I'm trying to code to get a sense of the current website that I'm on and then compare the current website with a database of URLs that I have written so that it automatically keeps a track of how much time I have spent in those websites that are in the database.

essentially the algorithm has to do this-

read the URL of the current website--------->compare the current website with the list of pre-added URLs in a separate database-----------> check if the same URL exists---------->if exists then calculate the time of opening as well as the closing of that specific website, if not then don't bother------->the end.

The catch is I have to do the whole thing on python. So if anyone could give me pointers to it, I would greatly appreciate it.