On-premise vs cloud hosting
On-premise vs cloud hosting is a choice between two ways of running software. On-premise, it runs on infrastructure the organization owns or controls, in its own data centers or with a hosting provider it manages. Cloud hosting hands the infrastructure (and depending on the offering the operation of the software itself) to a provider that bills it as a service.
Definition and how it works
Between the two sit many variants (dedicated private cloud, vendor-managed offerings, public cloud run by the internal team). What moves between these models is not the server. It is responsibility. Who applies security patches, who monitors overnight, who restores a backup, who pays when traffic triples?
In the cloud, the provider takes on part of those tasks and the contract says which ones. The principle is known as the shared responsibility model. The provider secures what it operates, while the customer remains responsible for its data, its access and its configuration.
Related terms: Cloud content management · Content management system · Headless CMS · Open source vs proprietary CMS
Resources that cover this term
- Enterprise CMS: Definition, Key Features and Benefits
- Headless CMS personalization: How to deliver truly adaptive experiences
- Headless Java CMS: In depth guide for developers
- How Integrators Can Design the Ultimate Content Author Experience in a CMS? (Integrators Tips Pt.1)
- How to connect Salesforce to your CMS: challenges & issues
- Open Source CMS: What is it and do I need it?
The differences in detail
The choice is not limited to two options. The table splits responsibilities between the organization and its provider for the main models. Contracts vary, so the table shows the usual split, not a rule. The cloud content management entry details SaaS and managed offerings. Hosting is also independent of content management system architecture. A headless CMS or a traditional one can be hosted on-premise or in the cloud.
| Model | Infrastructure | Software updates | What the organization keeps |
|---|---|---|---|
| On-premise | The organization | The organization or its integrator | Everything, including physical security and disaster recovery |
| Public cloud run in-house (IaaS) | The cloud provider | The organization | Operating system, software, backups, configuration |
| Dedicated instance run by the vendor (a private cloud operated by a third party) | The provider | The vendor, on a schedule agreed with the organization | Custom code, content, access |
| SaaS | The provider | The provider | Content, access, configuration |
The table mixes two vocabularies. In the cloud computing definition published by NIST (SP 800-145, September 2011), IaaS, PaaS and SaaS describe how much of the stack the provider runs, whereas private, community and public describe who may use the infrastructure, and hybrid combines several of them. A cloud offer sits in both lists at once.
On-premise vs cloud hosting in practice
A useful comparison puts both options through the same list. Where is data hosted, including backups and ancillary services? Which subcontractors are involved, under which jurisdiction? What availability commitments, backed by which penalties? Who triggers and tests disaster recovery? How do you get content, data and configuration back at the end of the contract, in what format, within what time?
Cost is compared over several years, counting what on-premise can hide: operations staff time, hardware renewal, system licenses, on-call duty.
Frequently asked questions
Does moving to the cloud remove the need for an operations team?
No, it changes its scope. Depending on the model, the provider handles hardware, the operating system and sometimes software updates. The organization remains responsible for its content, user accounts, configuration and integrations with the rest of its IT landscape. Those tasks still need named owners. The contract should name them, on the customer side as well as the provider side.
Is on-premise hosting more secure than the cloud?
A cloud provider may have security resources a single organization lacks, but it also concentrates risk. On-premise gives full control, which only has value if the team applies patches on time and tests its backups. In on-premise vs cloud hosting, the right comparison looks at contractual commitments, the provider’s verifiable certifications and the actual capacity of the internal team.