can make the user’s browsing interest. There is 12-1 noon when most users can rest will relax, so some Internet, this time to update once the effect is good. The last is Internet users at 7-8 o’clock this time is the most intensive, whether it is online chat or play games or visit the website, many home users love the Internet during this period of time, so the owners should according to the user’s session to updated in advance, and not a day only updated once. After all, I’ve seen a few articles, users see two times to three times, then the wonderful article will lose the interest of the users to read. For spiders, owners should not only on the basis of the spider crawling time, but the time that the spider habits of their updated content to crawl web site, the legend of the spider is such a thing. So this little update details often let many webmaster ignored, resulting in the use of content is not one of the reasons to improve the user experience.