We have covered the Google Caffeine index update at exhaustion here. So I won't summarize all the times people thought it was live and all the times we saw issues with what appeared to be Caffeine. If you like, scan through our archives.
An updated WebmasterWorld thread has many convince webmasters and SEOs saying Caffeine is live in the majority of Google's data centers. Senior member, whitenight said:
For the UNOFFICIAL record, I'm calling Caffeine UNOFFICIALLY launched.
** It's on 80% of all DCs. The remaining 20% have been getting Caff datasets flickering for the past 24-48 hours. The "old" SERPs and Algo are now the minority.
** At the time, I couldn't be bothered to post and then argue with the masses, but the INFRASTRUCTURE (NOT datasets) has been fully live and operational for ALL DCs for about a week and half now.
since testing the INFRASTRUCTURE is far more complicated than observing datasets, you'll forgive me if i don't give any practical examples... other than pointing out i've given past examples of how ANYONE can do this on their own in the earliest Caff threads.
Got all that? But another senior member, walkman, said that although it may be on 80% of the data centers, maybe the 20% of those data centers that it is not on get's more traffic? I don't think it works that way... But he said:
I agree that it's on almost all but strangely I have checked on google.com, www2 and www3 with several googledance tools and in my own area and I don't see it there. Maybe those 20% of DCs without the caffeine are getting more traffic?
It has been a really long time since Google or Matt did a post on Matt's blog or Google's blog about the status. Maybe it is a good time to just check in and say, here is where we are and where we see we are going in the next 3 to 6 months? Or maybe SEOs and webmasters should stop obsessing over it?
Forum discussion at WebmasterWorld.