The server is the foundation of the website, and the smooth operation of the website is inseparable from the server. However, many webmasters will encounter the situation of changing the server. Sometimes the space expires, or the existing traffic and space cannot meet the needs and the server needs to be replaced. However, changing the server will affect the website to some extent. So, what are the impacts of changing the server of a website?
The spider will cache the IP address pointed to by the domain name
In order for the spider to access quickly and save the server response time, it will cache each domain name Carry out a cache data. If we change the IP address, the search engine spider is still using the cached IP address to access, and finds that the website cannot be accessed. At this time, dead links will appear, which will lead to website keyword rankings, website weight, and website Credibility decreased!
Modify the cache time of the server
Set NDS to a very short time. TTL controls the cache time of the NDS server and also sets it to a very short time. All IPS and search engines view NDS information at any time. Instead of using the IP address from the NDS server cache. This operation is to allow search engines to know as soon as possible that the website has changed servers, so as to prevent search engines from being unable to crawl the new server. 
Resulting in a period of inability to access the website
Changing the server of the website will inevitably result in a period of inability to access the website normally. At this time, not only users cannot access, but also search engine spiders Unable to access, this will bring back 404 to the spider. If the number of spiders coming is less, it will lead to a decrease in website inclusion.
Resolve the new server IP address
After the website data is uploaded to the new server, test whether all files can run normally on the new server. The website can be accessed normally, the database is not lost, and the background data can be opened normally. After ensuring that everything is normal, change the domain name server and resolve the website domain name to the new server IP address. At the same time, the website board on the old server is blocked and runs
The server is unstable
If the server is replaced There is instability and the website cannot be opened for a long time, which will have a negative impact on the user experience of the search engine, and the server access speed is slow, which will also hinder the crawling and crawling of the search engine.
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