IaaS, Infrastructure as a Service, is a cloud computing model that provides virtualized computing resources — servers, storage, and networking — over the internet, on a pay-as-you-go basis. Instead of buying and maintaining physical hardware, a business rents exactly the infrastructure it needs.
Well-Known IaaS Providers
- Amazon Web Services (AWS) — the largest and most established IaaS provider
- Microsoft Azure — deeply integrated with Microsoft's broader ecosystem
- Google Cloud Platform — a strong option, with tight integration into other Google tools
- DigitalOcean — a simpler, more approachable option aimed at smaller projects
IaaS vs. Other Cloud Models
- IaaS — raw infrastructure; you configure everything yourself, operating systems included
- PaaS (Platform as a Service) — adds a managed runtime environment on top of the infrastructure
- SaaS (Software as a Service) — a fully finished, ready-to-use application, no configuration needed
Where This Fits for a WordPress Owner
Most WordPress sites run comfortably on traditional shared or managed hosting, and never need to touch IaaS directly. It becomes genuinely relevant for large-scale custom applications, or for businesses wanting complete, granular control over their own infrastructure — usually the domain of a dedicated technical team.
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