Akamai is probably trying to identify unique sessions or clients, and showing stats based on that.
Statcounter is tracking browser usage roughly by percentage of requests. They do some corrections, for instance they try to account for Chrome's prefetching.
More people (or more computers) might use IE as their default browser, but if Chrome is responsible for more activity (requests), what's the more popular browser?
> Chrome is responsible for more activity (requests)
Does anyone know if the prefetching/prerendering Chrome does is a significant portion of web traffic? Because that could easily skew request-based analytics.
Headers wouldn't work, because a prefetch often turns into a page view.
Edit: their methodology is public. They use the aforementioned API, and headers for the two other browsers that prerender (Firefox and Safari, who rarely prerender because pages must explicitly configure it). Pages pre-rendered and discarded would add 1.3% to Chrome page views if they weren't discounted. Here is the StatCounter FAQ: http://gs.statcounter.com/faq#prerendering
Ha, and just like in Stats counter's daily stats
http://gs.statcounter.com/#browser-ww-daily-20120531-2012062...
You can see that on weekends IE drops off to everyone else's gain. People are still being force to use IE at work, but their choice in many cases is something. Interesting to see.
It says that IE makes up 25% of cellular browsers. I have to seriously doubt that.
1. I don't know anyone who owns any Windows Phone up through Phone 7.
2. I don't know anyone who knows how to use a 3g / 4g hotspot who would be dumb enough to still use IE.
From the FAQ http://www.akamai.com/html/io/io_faq.html: the data comes from a sample of 600 million requests (out of two trillion (?)) to mostly US sites who are Akamai customers.
When you compare the Akamai stats to Statcounter's "North America" stats, the resemblance is a lot closer. It's possible that Akamai's traffic has a heavy North American weighting.
Statcounter is tracking browser usage roughly by percentage of requests. They do some corrections, for instance they try to account for Chrome's prefetching.
More people (or more computers) might use IE as their default browser, but if Chrome is responsible for more activity (requests), what's the more popular browser?