有没有熟悉seo的朋友帮忙看看？我的网站貌似被降权了

Dear site owner or webmaster of http://www.91meitao.com/,
We received a request from a site owner to reconsider http://www.91meitao.com/ for compliance with Google's Webmaster Guidelines.
We reviewed your site and found no manual actions by the webspam team that might affect your site's ranking in Google. There's no need to file a reconsideration request for your site, because any ranking issues you may be experiencing are not related to a manual action taken by the webspam team.
Of course, there may be other issues with your site that affect your site's ranking. Google's computers determine the order of our search results using a series of formulas known as algorithms. We make hundreds of changes to our search algorithms each year, and we employ more than 200 different signals when ranking pages. As our algorithms change and as the web (including your site) changes, some fluctuation in ranking can happen as we make updates to present the best results to our users.
If you've experienced a change in ranking which you suspect may be more than a simple algorithm change, there are other things you may want to investigate as possible causes, such as a major change to your site's content, content management system, or server architecture. For example, a site may not rank well if your server stops serving pages to Googlebot, or if you've changed the URLs for a large portion of your site's pages. This article has a list of other potential reasons your site may not be doing well in search.
If you're still unable to resolve your issue, please see our Webmaster Help Forum for support.
Sincerely,
Google Search Quality Team

以前在google搜索我网站的"美淘网"，首页稳定排在第六位，但是这两个礼拜突然首页消失了，只有内页还能看到排名。

感觉是被降权了，有了解seo的朋友吗？帮忙看看谢谢了

收到谷歌的回复，感觉只是套话。。