服務器對于網站的重要性不言而喻，更好服務器勢必會對網站的排名產生一定的影響。
The importance of servers for websites is self-evident, and a better server will inevitably have a certain impact on website rankings.
1、網站備份
1. Website backup
網站備份即數據庫備份，更型槽模具 一次性止血帶 保定水處理設備 一次性止血帶 保定空壓機 北京真空泵換新的服務器之前站長首先要將舊的服務器上的所有數據都下載到本地，如果不知道怎么下載，可以請空間商幫忙。
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服務器緩存時間
2. Modify DNS server cache time
這里會涉及到一個關于“生存時間”的概念，英文縮寫為TTL，指的是每一個域名解析記錄在DNS服務器中的存留時間。站長在為網站更換新的服務器時要把DNS的TTL值盡量設置的低一些，可以加速域名解析生效時間，便于搜索引擎盡早知道網站已經更換了服務器。否則，蜘蛛很可能抓取不到網站。
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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