Often I get questions about how you can tell if a Google Analytics implementation is successful. People don't want to wait at least 4 to in some cases 24 hours before they see some data... or not. That's why I will tell you how I check this seconds after the codes are placed.
How does the tracking work
Google Analytics uses pixel tracking technology to send data to the Google servers. That means that the GATC (Google Analytics Tracking Script) will put a little image on the page that is being tracked. The URL of this image looks like this: