Cached Google Pages

[Giles]

I was just wondering if pages that Google 'Cache' ever actually go away. Do they update or something or what...?

[Commander Thor]

The cache updates every time the Google crawler visits the site. That could be every week, or several times a day, depending on the site's traffic.
If the crawler cannot load the site, the cache remains the same.
If data is removed from a page and the crawler can visit the site, that data won't appear any more in the cache.
But if a site is taken down, or an address is removed (domain.com/x is removed, but domain.com/z remains) the cache remains.

The same rules apply to the Bing cache, the Yahoo! cache, the Ask cache, and so on.

[Giles]

Hmm... Well I'm asking because when I search my YouTube username some of my posts on here come up. I've taken the link and image out of my signature but it still comes up when I search; so will that go away eventually?

[Commander Thor]

It should, yes. Next time the crawler archives/caches those pages.

[Ender]

unless it's archived.. right?

[Giles]

Ok, I think I understand now. Let's just pray that it's gone in a few days.