In my project I need the Google cache age to be added as important information. I tried to search sources for the Google cache age, that is, the number of days since Google last re-indexed the page listed.
Where can I get the Google cache age?
Use the URL
https://webcache.googleusercontent.com/search?q=cache:<your url without "http://">
Example:
https://webcache.googleusercontent.com/search?q=cache:stackoverflow.com
It contains a header like this:
This is Google's cache of https://stackoverflow.com/. It is a snapshot of the page as it appeared on 21 Aug 2012 11:33:38 GMT. The current page could have changed in the meantime. Learn more
Tip: To quickly find your search term on this page, press Ctrl+F or ⌘+F (Mac) and use the find bar.