Publish your GIS resources, such as a maps, tools, or geodatabases, and make them available to a wider audience as GIS web services on ArcGIS for Server.
Build or customize your own web apps to work with your GIS services. Esri offers ready-to-use apps, configurable apps, and APIs that you can use with your GIS services.
Configure architecture, security, users, groups, services, and more using ArcGIS Server Manager. Script common and advanced tasks using the ArcGIS REST API.
You can deploy ArcGIS for Server on-premises or in the cloud. Esri provides pre-loaded virtual machine images on two popular cloud platforms.
If you want Esri to manage your cloud deployment for you, see Esri Managed Cloud Services .