What are web hosting datacenters?

Most major web hosting providers have their own private data centers, in which all of their web servers are stored. Datacenters are specially designed to accommodate the environmental needs of a web server. The temperature, humidity, dust content, lighting, cleanliness, and security of the data center is meticulously upheld by on-site staff that is responsible for keeping all of the web servers in perfect condition. The floors are air-cooled, all rooms are equipped with state-of-the-art fire extinguishing systems, and there is a 24-hour maintenance staff on duty 7 days out of every week.