We use varnish for caching and check the useragent for requests. If the cache has a copy of an article that is a few hours old it will just give that version t

We use varnish for caching and check the useragent for requests. If the cache has a copy of an article that is a few hours old it will just give that version to Googlebot while if it thinks a human is requesting the page then it will go to the backend and fetch the latest version. https://www.varnish-cache.org/lists/pipermail/varnish-misc/2011-March/005731.html https://www.varnish-cache.org/lists/pipermail/varnish-misc/2...