joined:May 29, 2013
I've decided to optimize a page of my website for certain keywords and I expected to see changes after the page have been cached but I was somewhat baffled by the fact that for certain queries Google prefers to display the old copy of the page whereas other queries come up with the new one.
The way I figured that out is it displayed content in the snippet which no longer was present on the page. The title was always new regardless of whether the snippet of the body of the page was the new or old one.
I understand I might miss out on how search engine works, so I would really love to have some in-depth scientific work on the subject.