Logic Intuition and detail analysis and summary of SEO case diagnosis

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SEO is not math, most places have no accuracy. SEO is close to the art of the door, many times rely on a vague sense of intuition and experience, and logic and detail is also very important.

Give two recent web site diagnostic cases.

A friend's website, inexplicably disappeared in the search engine. Previously included in the normal, I do not know when to start, the page is less and fewer until completely disappeared.

I looked at the website, is a simple personal site. Logic tells me, commercial web site cheating is often not the probability of K, personal site cheating is very small, there is no interest-driven, it is not worth doing. Web site is not included, in addition to be k, or robots.txt files prohibit crawling, or server settings prohibit spiders crawl.

From the perspective of the phenomenon, my intuition is that there is a problem with the robots. But opened the document looked at the file, it is really not see what the problem is very simple to allow all search engines to crawl. A more than one slash in the file, a slash, the sky, so I stared at the eyes carefully, do not see what the problem.

Then the details have to work. I used the online Robots file verification tool to check, three tools have two tools to show the top of the file a puzzling question mark, as the English computer does not have Chinese fonts to open the Chinese web site when the question mark. Open the file directly in the browser, or the other side of the file to me, with the editing software open, can not see this question mark.

After a simple conversation, it was found that the friend was using the Windows Vista operating system. I've heard of Windows Vista system 8630.html "> Sometimes there is a problem coding when working with text. Don't know why. However, the result is that the file encoding may be problematic, search engine crawl after the error understanding, the results do not crawl Web pages.

I put the file back in my computer and passed it on to each other. The other side does not open not to edit, directly upload web space, a few days later, crawl began normal.

Another problem is the English website. In google.com search keywords, ranking zooey on the first page to four or five between the jumps. But ranked stable in google.cn. Because it is the English station, so in the google.cn rankings meaningless.