服務器對于網(wǎng)站的重要性不言而喻

服務器對于網(wǎng)站的重要性不言而喻，更好服務器勢必會對網(wǎng)站的排名產(chǎn)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(wǎng)站備份
1. Website backup
網(wǎng)站備份即數(shù)據(jù)庫備份，更型槽模具 一次性止血帶 保定水處理設(shè)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(shù)據(jù)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(guān)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(wǎng)站更換新的服務器時要把DNS的TTL值盡量設(shè)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(wǎng)站已經(jīng)更換了服務器。否則，蜘蛛很可能抓取不到網(wǎng)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.