Definition
Cloud hosting is a method of running your website or application on a network of virtual servers rather than a single physical machine. Instead of your site depending on one box in a data centre, cloud hosting distributes your resources across multiple servers managed by a provider like AWS, Google Cloud, or DigitalOcean. If one server has a problem, another takes over. Resources like processing power, memory, and storage can be increased or decreased on demand, so you only pay for what you use.
Why It Matters
Traditional hosting ties you to a fixed amount of resources on a single machine. If you outgrow it, you need to migrate to a bigger server — a process that often involves downtime and technical effort. Cloud hosting removes that ceiling. You can scale up during busy periods and scale down when demand drops, which makes costs more predictable and prevents you from paying for capacity you do not need. The distributed nature of cloud hosting also improves reliability. A hardware failure that would take down a traditional server is handled automatically in the cloud, with traffic rerouted to healthy infrastructure.
Example
A seasonal retail business experiences ten times their normal traffic during the November sales period. On traditional hosting, they would need to pay for a large server year-round to handle the peak, or risk their site crashing during the busiest sales days. With cloud hosting, they run on modest resources for most of the year and scale up automatically when traffic increases. After the sales period ends, resources scale back down and costs return to normal.