Citrix Hypervisor Software Description
Citrix Hypervisor (formerly known as XenServer) is a cloud-based solution that you can use for desktop and cloud virtualization of infrastructures. It simplifies management and boosts operational efficiency across physical and virtual infrastructures through a unified solution suite. The Hypervisor platform provides a solid foundation to accelerate application innovation and eliminate cloud lock-in with a single, open source-based architecture. Citrix Hypervisor is built with Paravirtualization support for efficient VM management on a host machine.
It integrates the latest innovations in hypervisor and container technology and enables data center efficiency, application agility, and enterprise scalability for a wide range of workloads. You can use this as an alternative to Xen and Vmware. As open-source code, it enables you to deploy it on its own or in combination with Citrix XenServer or Vmware vSphere. All in all, Zscaler Web Security is a great tool that you can consider among its alternatives.