Search Engine Spiders (Google crawler or bot)
2 - The Crawl is used by Google to index many or all of the interior pages of your website as weel as find new pages to index.
3 - After your pages have been crawled the new versions of those pages are saved in Google’s cache.
4 - The cache is used for find the last crawler travelled date with is can estimate how often the spider visits your site.
5 - Google bot visits your sites very often (Daily), if the site PR5 or more. The lower ranked sites will visit at longer intervals.
6 - You want the spider to visit your site as often as possible to pick your new page or any changes to your old ones. You can easily do this by getting more high quality inbound links and add it to your home page.
7 - Do the changes to your home page. It help attract googlebot.
8 - Google has another spider with the notation “Media partners”. This spider is used in conjunction with their adsence content-matching advertising program and it has nothing to do with search engine rankings.
