为什么有的网站百度收录了几千篇文章，而经过一段时间快照会返回，让收录也只剩下首页？难道是被百度给惩罚了吗？还是有几它的原因呢？下面我们来分析一下：

Why do some sites Baidu contains thousands of articles, and over time will return a snapshot for your home are left? Could it be Baidu to punish it? A couple of its causes? Let's analyze:
　　大家都知道百度跟新一般在10-15天，在这次的大更新中，肯定是有人欢喜有人愁，欢喜的人是因为自己网站在这次百度的大更新中，有了新的突破，有人愁那肯定是因为自己在这次的更新中有的网站收录毫无动静，还有更郁闷的站长，网站的收录没有增加，反而减少很多收录，更严重的只剩下首页了，为什么会有这些原因呢？第一页SEO就这一问题分析如下：

We all know that Baidu is generally 10-15 days with a new, major update in this, certainly some people are happy others are sad, happy people because their site Baidu in the big update, with new breakthroughs, Some people worry because they will definitely be in this update, some sites included on no movement, there are even more depressed webmaster, your site does not increase but reduce a lot of your more serious left home, why there will be those reasons? SEO first page on this issue as follows:
　　第一：为什么我的网站会在百度大更新中收录创下奇迹。
　　我自己制作的一个网站从建站到现在才1个多月百度收录近4000篇，很多站长肯定很羡慕吧？很多网站建站可能有好几年了，但是老是收录才几百篇，有的只有10几篇，那么你有没有发现其中的问题
呢？下面介绍下我建站到现在所做的工作。
　　1、网站内容定时更新，最好每天更新，保持一周内至少3天更新。
　　2、首页标题定位了不要再改动(这条非常关键要不然会出现快照回滚的现象)
　　3、注意文章关键字、描述还有文章关键词密度一般在2%-8%之间为最佳。
　　4、每天更换3-6个高质量的友情链接(什么是高质量的链接，前文已经说过了，感兴趣可以搜索查看)。
　　5、网站的友情链接不要超过50个(这是非常关键的如果太多的友情链接会被百度直接降权甚至被“拔毛”)。

First: Why my website will update your record Baidu great miracle.
I made a website from Jianzhan to just over one month now contains nearly 4000 Baidu, many owners must be very envious of you? Many sites Jianzhan may have for several years, but it always contains hundreds of articles, some only 10 a few, then you have found the problem
What? Here I am the Jianzhan to the present work.
1, regularly updated web content, preferably updated daily to keep updated at least 3 days a week.
2, page positioning not to change the title (this is critical or else there will be a snapshot rollback phenomenon)
3, note the article keywords describing the article keyword density are generally between 2% -8% for the best.
4, daily replacement of 3-6 high-quality links (links to what is high quality, previously have said, interested can search to view).
5, the site links do not more than 50 (which is very critical, if too many links will be right down Baidu directly or by "plucking").

　　第二：为什么有的网站会在百度更新中没有增加收录甚至降低收录
　　1、网站首页标题大动干戈、乱改动(这是非常重要的如果你乱改标题一个月之内超过5次，那么你被百度K的概率是99.99%)
　　2、网站内容在一夜之间忽然增加了N多内容，多数是通过网站采集，俗称垃圾站。
　　3、网站的友情链接出现严重问题，比如你链接到被百度惩罚的网站
    4、网站含有恶意代码，被用户举报，导致网站收录被百度删除。
    5、同网站服务器上有网站被百度惩罚，连累了你的网站。
    如果你的网站收录不是很好，看看是不是存在上述中的某一条，如果存在，尽快修改，如果你有更多的心得与大家分享，欢迎交流。

Second: Why do some sites did not increase in Baidu update your even reduce your
1, the site home page the title go to war, chaos change (this is very important to chaos if you change the title more than 5 times within one month, then you are Baidu is the probability of 99.99% K)
2, content sudden increase in the overnight more than N content, mostly through the site acquisition, commonly known as garbage station.
3, the site links serious problems, such as you link to the website to be punished Baidu
    4, the site contains malicious code reported by the user, resulting in your website to be Baidu deleted.
    5, the same site on the server site is Baidu penalty brought the your site.
    If your site contains not very good, see if there's a 1 above, if there is, as soon as possible modification, if you have more experiences to share, please share.