Any established web hosting provider can host even thousands of websites example, Hostgator is a popular web hosting company that hosts websites in lakhs i।e. more than 4 lakhs. Due to this reason only these hosting companies needs large number of web servers for storing the website. Thereafter all these web servers are connected to Internet and are kept in a physical center 'data center'. As these web servers needs to be fully operational all the time so data centers are made fully secure having 24/7 environment and given protection from fire, HVAC temperature control, virus detections, computer data backup, redundant power backup and complete disaster recovery capabilities.
Now after knowing what is web hosting it is also important to know the different types of web host which are summarized below:
Shared Hosting. As the name suggests, in shared hosting several websites share space on the common physical web servers. A physical web server can host thousands of websites at one time depending upon the web host. With so much pressure on web servers it tends to make one think that due to over burden perhaps the performance of web server gets affected. But that thinking is totally wrong as for this reason only web servers are equipped with high-end powerful computer so as to support large number of websites to some extent without any problem. However but it is even possible at time of over burden on web servers that the response is badly effected.
In order to get rid of this problem reputed and experienced host providers constantly keep on monitoring the performance of web servers and keeps on adding new web servers when and where required. As many websites share a same physical web server the cost is generally low with start from mere $5-$20 per month and they also have to accept slower server response time.
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