&http://www.aliyun.com/zixun/aggregation/37954.html ">NBSP; This problem can be analyzed from both inside and outside.
The adverse factors outside the station include unrelated friends chain, yellow gambling game lottery, such as low quality import links, volatile (suddenly increase suddenly reduce) the import link status;
The station can be divided into structure, link, content three block, the structure of the search engine like flat clear site structure, the level of the directory is too deep, the relevant call of the site is not conducive to crawling the search engine data; links, error links, repeat page is not conducive to SEO performance, too little within the chain, too concentrated is not conducive to the transfer of Content, the search engine is the most objectionable is two points, one is repeated content, including the station too much duplication of content or a large number of collection content, the second is not the long-term content of the site.
To sum up, the search engine aversion is actually the site is not conducive to its crawling, unfavorable to it to obtain valuable content, unfavorable to it to identify the site which is a high-quality page of factors, for it, such a site to waste its computing resources, but can not bring valuable content to search users.
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