Limitation Rated 3 out of 5 stars

I was experimenting with having the Google Analytics tracking code (the earlier non-asynchronous version) as external javascript and made a slight error in how it was arranged. The resulting code did not work, as indicated by Analytics results and by Firebug but GA? indicated that all was OK. It seems it does not mind if the second half of the tracking code is missing. I would have liked to have been able to rely on it to indicate whether or not the tracking code was actually working.