SEO actual combat sharing: 302 will cause the site suffered from Baidu down right

The 302 status code is one of the HTTP common status codes, and 302 is a temporary redirect meaning that a Web page is temporarily moved to another page. In practical applications, it should be divided into two types: an internal temporary redirect, a page from domain A to another page in domain A, a temporary external redirect from a page in domain A to a page in domain B. Browsers always follow their definitions when interpreting 302 redirects (both internal and external). However, most of the current search engines (including Google and Yahoo!) Use it only as an internal 302 redirect. Thus, for an internal 302 redirect, the search engine does not cache the results of the redirection, and the domain A continues to be listed in the SERP. This is consistent with the definition. External 302 redirects are a bit more complex. Google's Matt cuffs claims that over 99% of the time, Google will list the results of the target results, that is, domain B rather than domain A. This is a departure from the standard, and Google did so to mitigate the "302 hijacking" attack. "302 Hijacking (hijacking)" refers to the use of a page on domain A to reference a domain B with high quality updates. In this way, based on the updated content from domain B "stolen", this page will have a better ranking.

External temporary redirects are generally used in the station ads, so the overall number will not be high, and the internal temporary jump, involving content pages, the overall data will generally be very high. Because the Web site program caused the same content repeatedly called the problem, resulting in a large number of Web site duplication of content, the use of 302 jump to solve the problem of duplication. Led to search engine spiders crawl when there are a large number of 302 status code.

　　

Tragedy occurred the next day, resulting in the number of Web site keywords from 180 to 93. Aware of the problem, the next day in time to remove the 302 turn, the third day, the number of keywords on the site from 93 to 190.

　　

From this can come to a conclusion: the site of a large number of 302 turn will cause the site to suffer from Baidu down the right, so in the station to choose the time to turn to use 301.

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