Why does wordpress gets cached frequently by google.

Hello People,

I had been asked this question at an interview but wasn't able to answer. I asked some of my seo freindz but the answer I got was not concrete. So I am here asking for help.

Hope you will help me out.

Thanks in advance.

Its not a matter of WordPress getting crawled frequently.

Any page or blog updated regularly with fresh content calls in the Fresh Bot which craws and indexes the new content.

Of course, links to the page are needed to make way for the spiders.

You mean to say fresh content is also responsible you frequently crawling of website

Google also has Freshbot - it looks for websites which typically have constantly changing content, and re-indexes them every day or two. If you see any Google search results with a date beside them, that is when Freshbot last visited them. Sometimes Freshbot will unintentionally find other sites...

More at http://answers.google.com/answers/threadview/id/159539.html

Yes I agree I have client his website is article base he daily updates his website with fresh content I have seen his website re index within one or three days.
So, point is if we update our website frequently then our website is reindex frequently in google.

Yes, provided that, as pro_seo has already mentioned, you have the links to warrant frequent recrawling.

By their nature, blogs tend to see their homepage crawled frequently, since any new posts appear on the homepage, thus the homepage is the most frequently changed of all.

For more traditional sites, the homepage tends not to change nearly so often, and as a result gets re-crawled less. However, if the non-blog site still gets regular changes and additions within the site, chances are it'll be crawled just as much, you just won't be aware of it from simply looking at the "Google last visited your homepage on ..." date in GWT.

another reason might be if the crawler indexes pages linking to the new posts(social bookmarking links)