What did I do before the site was K

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Each stationmaster most grieved thing, is oneself day and night manages the website one night by the Baidu K a clean, I do the station for the first time in several months has been Baidu K my station, the friends all said the rubbish station is easy to be k, also did not know that I do the station is not too rubbish reason.

The station was made two months ago, is a download station, the site was K before the ranking and traffic has been good, so has been stable for about half a month, during which the income of 200 yuan per day, and then are tasting the harvest the next morning to find their own site is not included, Suddenly realized that their website was K,

And then I'm going to go back to the reason for being K, on the blog to observe the path of the Baidu Spider, home also did not find anything unusual, in the end what is the reason for their own recall, I do every detail to let you analyze, title title modification, in order to optimize the keyword, during the change of title.

The increase in keyword density adds the same number of keywords in order to improve the ranking of keywords. External links with the same keyword used too much, the number of links to 30, I think should not be too much, with their own website downloaded software, answered the question in Baidu, but not many times a day, not more than 5

I changed the background of the Web page, just changed the color. Alliance ads from the original Baidu to the official website

Is this really the cause of Baidu K station? In addition to these I can not think of any other details of the problem, Baidu K station has its full reason? Also please pass the Webmaster Friends pointing small 12th (since http://www.fengxing588.cn).