Just to let all of you know that today I see a strange thing happening with one of my website. I found that 2 days back my home page was cached on 18th March, 2010 and today I found that it is cached on 11th march, 2010. Can anyone let me know why it is happening? Regards,
Google switches to older data sets because they are trying to roll out caffeine. This has happened to me 5 times over the past 3 weeks along with a loss in indexed pages.
This is a so called "Shuffle" means your site data is currently being trasferred across Google DCs. Most of time this thing happen, that site ranking always change but cannot tell if is' go up or down. Keep watching because this thing is not happen to every sites.