Example Analysis Web site replacement server impact on search engines

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Site replacement server is the site often need to encounter the inevitable problems, there are many possible reasons, such as server hard disk damage, server attacks, server instability, single-line server caused by some users can not access and so on. However, the replacement of the server if the improper operation is very easy to be punished by search engines.

Company server due to the network, the original is a single line of the server, directly led to some of the Unicom line users can not access, and finally decided to replace the server. Originally want to change the IP to avoid being down the right, so as to prevent the ranking back off, but the disaster or inevitable occurred. After switching IP:

Web site Snapshot Update error

The site snapshot is updated, but the Web site for the old server is updated.

Second, Baidu included regression

January 2, the replacement of the server, from the above data we can see that the site is included in the trend of regression, today included 1, most likely has been Baidu examination.

Third, the site keyword ranking off the light

As shown in the picture, the site's main keywords have fallen to 100, the original site of the main keyword, although not high, but also all within 100.

Adverse impact causes analysis:

Replacing a server requires a domain name to be resolved to a new IP, Baidu may have its own server cache DNS, when the site after the replacement of IP, although the domain name has been correctly pointed to the new IP address, but Baidu cache the domain name pointing to the old IP, resulting in Baidu spiders or to crawl the old server, However, because the old server has stopped the SQL process of the site, only IIS normal, when the spider crawling site, can crawl the home page is as shown in the error home page.

Site Replacement Server recommendations:

General search engine spider to Domain name IP address DNS cache time is 1-7 days, so we replace the Web server, the best way is to seamless switch. Domain IP resolution to the new server, our old server still need to maintain normal operation, until the search engine can normally include new server article content. This article source: Http://www.xiuzhan.net reprint Reservation