Thanks! It's not lightweight -- the average script include I have right now is around 280k. I'm going to be able to reduce it in the next few months to around 150k, I believe. Once downloaded, the processing of it itself is not too intensive.
I do about 10 million impressions a day, and the request to the server is a pretty consistent ~200ms, along with an async load that won't affect overall page load.
Have you tested this on some cheap, low-end, Chinese phones with the default browser?
> You consider 280k script lightweight? Wow.
They do not. :P