Quote Originally Posted by SteveHadson View Post
Well, as per my knowledge caching is depends on indexing. first crawler index your website urls in their database, then cache the content of your web page. whenever you modify any content on the web page, crawler again cache that web page because that web page has been already been indexed.
Well no Google 1st crawl our data (that software being called crawler or spiders) and than keep that data in their index or database