[jingwen]

You know when we search something on search engine,we can see it show "cached",i want to know from it,shall we said that,it show the last time spider go to this page?
And our site have so many pages,how to make spider can crawled much more pages each time.

[BALLERMODE]

Your subject is "cached, what is it?" Cached refers to when the search engine stores a copy of the page on their server.

I don't understand your 2nd question about the spiders, though...sorry.

[jingwen]

I'm sorry,you know my english is poor.
I mean when i check the cached of my site,i found only the homepage and one catalog be crawled by google spider,some of my catalog are still stayed at june 20 or more early,so i think it is not in gear，right?

[bluemindset]

In computer science, a cache (, like "cash" ) is a collection of data duplicating original values stored elsewhere or computed earlier, where the original data is expensive to fetch (owing to longer access time) or to compute.

In Search Engines, it is how they look like when Google see them as they crawl it.