My understanding of SEO

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The xxx.com site only locates 4 keywords. (keywords) However: Description I wrote a big push. First day. I submit to Baidu. Submit two times an hour. Every 4 hours, title in 32-40 or so, and then put their own PR high station link, in Sina and other places to post, comments, and to Baidu know to answer other people's questions. And with links, waiting for Baidu Spider come over, new station 2 days Baidu Search, And the keyword in Baidu ranked first. I'll try to write a few notes on the title of the page, page title and keywords appear more and more good, and I compete for the station keyword density is about 9, and I will try to set for about 9.6, the general SEO said the keyword density of 2-8 is good. But I want to do an experiment. I'll see how the positioning will be around 9-10. A page between the three pictures. All the other words, do the above. I wrote a lot of description. At least 50-80 bytes. A lot of people say that. Baidu now attaches importance to: description, but I also want to do an experiment. Position the description byte to 50-80.

           experiments show that I'm doing the right thing, but I don't know if it's luck, These are done. I started to do outside even, I first to Baidu blog, Sina blog, and news blog and so the weight of high places to register, write with links to the article. and then to comment on other people's posts. Every 2 hours to Baidu to know to answer other people's questions. Add links to resources. Baidu included, I search keywords. My site ranked on the first page of Baidu. and 3 keywords are on the first page. This is my new station. 5 days to bring the effect, now the flow of almost 80-200 per day, and then I help friends do SEO, his station built a lot of days, Baidu is not included. Now let's analyze his website. Keywords (wrote a lot of keywords) description (keyword description But wrote a few words), the homepage content is not much. One flash accounted for half, I helped him to write the article in my way. But still not included., 5 days before the income, which proves what.? is CN's domain name really changed rubbish, or keywords (wrote a lot of keywords) description (keyword description But wrote a few words). The question of this.?