服务器对于网站的重要性不言而喻，更好服务器势必会对网站的排名产生一定的影响。
The importance of servers for websites is self-evident, and a better server will inevitably have a certain impact on website rankings.
1、网站备份
1. Website backup
网站备份即数据库备份，更型槽模具 一次性止血带 保定水处理设备 一次性止血带 保定空压机 北京真空泵换新的服务器之前站长首先要将旧的服务器上的所有数据都下载到本地，如果不知道怎么下载，可以请空间商帮忙。
Website backup is also known as database backup. Before replacing a new server, the webmaster must first download all data from the old server locally. If you don't know how to download, you can ask the space provider for help.
2、修改DNS服务器缓存时间
2. Modify DNS server cache time
这里会涉及到一个关于“生存时间”的概念，英文缩写为TTL，指的是每一个域名解析记录在DNS服务器中的存留时间。站长在为网站更换新的服务器时要把DNS的TTL值尽量设置的低一些，可以加速域名解析生效时间，便于搜索引擎尽早知道网站已经更换了服务器。否则，蜘蛛很可能抓取不到网站。
The concept of "survival time", abbreviated as TTL, refers to the retention time of each Domain Name System record in the DNS server. The webmaster should set the DNS TTL value as low as possible when replacing a new server for the website, which can speed up the effective time of Domain Name System, so that the search engine can know that the website has replaced the server as soon as possible. Otherwise, the spider may not be able to crawl the website.
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