I imagine they have banks for computers doing the spidering of websites. Does the number matter? It will basically view your site, read the content, index it, cache it, rank it, follow the links and move on.
I don't really understand your question, but Google Spider, also called Google Bot, visits all sites in its index regularly to check if there is any new content. It does so by crawling links on the Internet, which can also lead to new sites being indexed. The bot uses many ip addresses for this purpose.
They basically "crawl" your webpages so that they can index it on their search engine. The more spiders the better =]
Google has the world's largest database of indexed websites and it acquires site information through its spider GoogleBot. GoogleBot's mission is to create a snap-shot of the World Wide Web and store it across Google's network of data centers around the world. When you reference information from Google, the results you see reflect Google's most recent snap-shot of the web. Parts of that snap-shot might be hours or even weeks old but overall the index is updating itself every minute of every day, 24/7. The fastest way to see exactly what Google views as the most recent version of your site is to click on the “Cached†link generally below the main link-reference Google displays for your site.
Well Google got its spider or bot named Googlebot, It basically views your site, index it, cache it, rank it, follow the links and move on.
Google spider or Bot is nothing but a software. It follows the links on the internet, encounters the data, index it & spew it out when a search is taking place for the specific data.
Hi Google spider, google crawler, google robot all are the same. This is a automatic program which run automatically over the web and save all the things which found new on the web. Hope you understand!
i would images Google have pretty much a whole hosting house powering there server which are dedicated to crawling the web and chances are that each server would have a lest 1 crawler so you'd be looking at 10's of thousands of "spiders" crawling the web all at once.