How can I create a program which records how much internet data is used by each website visited?

I don't believe this is even possible but it's worth asking,

I would like help to create a piece of software that when executed, will display a detailed list of each website URL that was visited during each and every browsing session and how much internet data was used from each individual website that was accessed. I don't want a daily total, I want individual times and URL's and the amount of data used. I use a pocket wifi so the program will need to execute automatically from the computer when it detects a wifi connection. I don't have a router or anything like that.

It should look something like this...

22/03/2015 2:56pm URL: http://ift.tt/1xF2Xbo // used: 35 MB

I don't know if you can display the URL or if it must be the IP address but as long a s I can identify each location or the source from which the internet is being used. So I should be able to see something like above but maybe instead of an URL if that's not possible, a IP address like 208.65.153.251 and it might say that 1.5 GB was used from this address. I can then enter it in to my browser and discover what website is, for example that IP address belongs to YouTube so this means I now know that I used 1.5 GB of internet data on Youtube.

I'm not sure as to whether cmd would be used for this or what???

Please help,

M