How to move a Web site between servers without affecting rankings

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If, for a variety of reasons, such as downtime is too frequent, server overload and speed is very slow, in short, you are not satisfied with the network hosting service provider currently in use, or found a can provide more features of the service provider, and want to move the site from one server to another server up, This is not a difficult task, but in the relocation process should keep in mind the following points:
Contact the new service provider-not too hasty
naturally you are not going to want to be in your site during the downtime of the search engine spiders coincidentally will come to visit your site. The best way to avoid this is, of course, not to go down. If you can ensure that the relocation between the servers is correct, the downtime problem should be avoided.
Before considering cancelling the original service provider, be sure to find a new vendor. After deciding to use the new vendor's services, you can contact them to open an account and make sure that all files are uploaded to their servers correctly. After this step is completed, and then carefully check whether there are any problems, do all this work, and must be in ensuring that the Web site on the new server to run without hindrance to contact your original supplier, told you will be "soon" after the termination of their cooperation. Remember not to let them close your account now, because you also need to change your domain name server, otherwise customers will not be able to access your site.

Contact the domain name Registrar-change the Domain name server (DNS)
upload the entire Web site files to the new vendor's server, and then notify the original vendor "soon" to terminate their cooperation. After all this work is done, the next thing you need to do is contact your domain registrar and make the corresponding changes to the domain name resolution (DNS) server. The steps are to change the domain name server used previously by the domain name registrar to a new domain name server provided by the new network hosting service provider. Once the change is complete, the change will work in the next 24 hours to 48 hours, no later than 72 hours, and the customer will be able to access your site as before.
You know, the Internet is based on domain name resolution server (DNS) to be shipped. The domain name server is responsible for converting the domain name into a digital IP address that the computer can understand. For example, if a user wants to visit your site www.yourdomain.com, then the domain name server will convert www.yourdomain.com to IP address such as "210.110.75.138", so that you can find the content of your website Web server. The number of domain name servers is increasing with the rapid development of Internet.

The new Web site runs well and then closes the old account number
Now, if the search engine's robot program, like Google's Googlebot or Yahoo's slurp to visit your site, whether from the old IP address or the new IP address, they will not find aAny strange, so still will be the same as ever to retrieve your site.
Now you can understand why I recommend that you open your account first and make sure that all files are safely and accurately migrated to the new server. -because this avoids unnecessary downtime on your Web site.

After one weeks after the site is moved to a new server, if the operation is in good condition and there are no sequelae, then you can contact the original service provider to request the shutdown of your account on their server.

Additional considerations:
In today's fast-growing internet age, replacing web hosting services is as easy as changing clothes. As long as you follow the above steps to operate, absolutely no problem. But let's be clear: when choosing a new web hosting provider, don't just think about whose service prices are cheaper. In addition to the lowest price, there are many other factors to consider, such as practicality, reliability, stability, and whether there is efficient and rapid customer support, whether there are experienced technicians and so on, are important factors to consider. There is also the possibility of a free service call, which can save you a large number of telephone charges.
Another important factor to consider is the issue of emergency backup power. In January 98, the largest ever ice-storm attack in the Montreal region and most other parts of the province of north-west Canada has caused blackouts in some parts of the province for up to 6 weeks. In these areas, only those network providers equipped with diesel engines as back-up generators have not suffered any impact or loss from the disaster, and their clients are naturally safe in the disaster.