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问题:

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?

回答1:

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.

回答2:

You'll need to scrape the resulting page, but you can view the most recent cache page using this URL:

http://webcache.googleusercontent.com/search?q=cache:www.something.com/path

Google information is put in the first div in the body tag.

回答3:

you can Use CachedPages website

Cached pages are usually saved and stored by large companies with powerful web servers. Since such servers are usually very fast, a cached page can often be accessed faster than the live page itself:

Google usually keeps a recent copy of the page (1 to 15 days old).
Coral also keeps a recent copy, although it's usually not as recent as Google.
Through Archive.org, you can access several copies of a web page saved throughout the years.

回答4:

its too simple, you can just type "cache:" before the URL of the page. for example if you want to check the last webcache of this page simply type on URL bar cache:http://stackoverflow.com/questions/4560400/how-can-i-get-the-google-cache-age-of-any-url-or-web-page

this will show you the last webcache of the page.see here:

But remember, the caching of a webpage will only show if the page is already indexed on search engine(Google). for this you need to check the meta robot tag of that page.