hasn’t had the patience to study anything about SEO and Internet marketing. I got up early this morning and saw one of my websites rank out, so I began to check my website. Later found that their website is no problem, and recently did not go to a lot of more sites, from the beginning of the site did not cheat! Check the keyword density, and found that keyword density 7.8, although slightly higher, but not exceeded! Also began to check the external links, and found that there is no discrepancy. And only the home page disappeared, originally included less, and other pages are still in, and then come to the results, that is not my site itself.