Cloud hosting uses a network of virtual servers that tap into an underlying network of physical web servers. Unlike traditional hosting, where your site might live on a single server, with cloud hosting your resources can be spread across multiple servers. This offers flexibility to scale resources up or down as needed, ensuring better handling of traffic surges and overall reliability.

Cloud hosting providers implement robust security measures including data encryption, firewall, intrusion detection systems, and multi-factor authentication. Most providers operate with a shared responsibility model, meaning they manage the security of the cloud itself, while clients are responsible for securing their data within the cloud. Regular security audits and compliance certifications are also part of their service.

Yes, many cloud hosting services offer tools and support to migrate your existing website. They can help transfer your data, assets, and applications to the new cloud environment. Some providers offer this as a managed service, while others provide guidelines to facilitate a smooth transition.

One of the benefits of cloud hosting is the reduction of downtime, even during scaling or maintenance. The distributed nature of cloud hosting allows for live migrations of virtual machines, meaning resources can be added or taken away without affecting uptime. Maintenance can often be performed without any impact on service availability due to the redundant infrastructure.