It's a piece of cake.
Open up command prompt. Then type tracert (space) Google press enter. It will say tracing route to www.1.google.com (that's what it said on my computer).
You will start to see all the hops. Will show the the hops numbered at the left 1 will be your router; then the DNS, then to another router and on. The final hop will be Google (provided it gets that far). below that it will will say trace complete.
My trace took 14 hops, your could be more, or less.
My homepage is still the one established by Firefox. It's a Google page, but it has a Firefox link on it as well. I found that it had quit on me and I couldn't get it to come up. The bottom of the browser was trying to go to some "en.us.google. whatever mumbo jumbo. Well, I stopped the page and just typed www dot google.com and it came up. So I think its the FireFox Google start page not coming up.