Google backfile observation in progress

"Google cache rollback refers to the situation where the Google search results display content from a website that is much older. (The most obvious example is when a website's former title was 'XXX', and it has since been changed to 'YYY'. Google also updates its records to 'YYY'. However, one day, when you search for the site, the title reverts back to 'XXX').

Guo Jian believes that Google cache rollback does not necessarily indicate punishment or demotion. It could perhaps be due to some reasons within Google's server.

Currently, he is observing the Google cache rollback, and the impact of such rollbacks on rankings, as well as possible future reactions."