Analysis Site 301 redirect in the end have no effect?

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Site 301 Redirect technology is mainly the Web page to change the address of the search engine friendly best way, as long as it is not temporarily move the situation, are recommended to use 301来 to do the transfer site. There are many articles on the Internet to introduce 301 redirect technology, This can be found in Baidu and Google. Today, mainly to introduce you, 301 redirect technology in the application of SEO.

As we all know, the site's main domain name default is not with the WWW domain name, with the WWW domain name is a special level two domain name exists. Generally with the WWW domain name is in line with the Web site specifications, we do when the site is to take the WWW domain name as the main domain name, for the construction of the chain, but also to this domain-oriented. In Google Webmaster tools, webmaster can choose the site's main domain name, under normal circumstances we are designated with the WWW domain name as the main domain name, so that all of Google crawling is based on this domain name, included in the URL is to do this domain name index to the database. Baidu temporarily does not provide such webmaster tools, so Baidu will be the two domain name of the first Web site included, the index of some of the Web site with www, and some do not have the WWW, which caused us in the Baidu query included, site:domain.com and site: www.domain.com Return of the results are not the same, generally the former return of the number of included more. And will also cause the two domain name in Baidu weight is not the same, snapshots are not the same situation. The author of a website has encountered such a situation, domain.com snapshots every day, and the weight is also high; www. The domain.com snapshot is one week slow and the weight is low. Prior to the construction of the chain is always with the WWW domain name, basically no use of the domain name without www, causing such problems may be due to server IP replacement. To solve this problem, 301 redirect technology is used to redirect domain names without www to domain names with www. After adjusting, about 2 months time, with a snapshot of the WWW domain name normal, and site:domain.com, the return of the results are all have the WWW domain name URL, the original index without the WWW domain name URL has been deleted from the Baidu database. If you also have this problem, you can use the 301 redirect technology to solve. Baidu Response 301 Redirect Cycle is relatively long, general 3 months or so, in this period must continue to update the site, and carry out the chain construction.

Use 301 REDIRECT technology can unify the weight of the website, avoid the weight of the website is dispersed; Therefore, it is best to use the 301 redirect technology at the beginning of the construction station, and redirect the domain name without www to the WWW domain name, so that Baidu will only index the Web site with www domain name. Some webmasters may not be able to resolve the domain name without www, in fact, this is not very good, easy to cause traffic loss, because some visitors like the direct input without WWW domain name. If not resolved, it will cause this part of the flow loss. The above is only a personal experience, for reference only.

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