Hosting providers often ask you to choose between a Linux or Windows server before you can sign up, and the choice can look more significant than it usually is. For most websites, one option has a clear practical advantage; for a smaller number, the choice is determined by a specific technical requirement.
What the operating system choice actually controls
The operating system is the software that manages a server's hardware and runs the programs needed to serve your website. It determines which server-side technologies are available to you — for example, which programming languages and databases the server can run natively, and which control panel software you can use, as covered in cPanel vs. Plesk: What a Control Panel Actually Does.
For the vast majority of website owners, this is a background detail rather than something you interact with directly day to day.
Why Linux is the default for most sites
Linux hosting is the standard choice for most websites for a few practical reasons:
- It is free for hosting providers to license, which is usually reflected in lower prices for you.
- It is fully compatible with widely used platforms, including WordPress, which powers a large share of websites.
- It has a long track record in web hosting specifically, so most hosting tools and documentation assume a Linux environment.
Unless something about your website specifically calls for Windows, Linux hosting will run it without any practical disadvantage.
The specific cases where Windows hosting is genuinely required
Windows hosting exists to support technologies built on Microsoft's platform. You are likely to need it only if your website or application specifically requires:
- ASP.NET, Microsoft's web application framework.
- Microsoft SQL Server as the database.
- Specific Microsoft-built content management systems.
If none of these apply to your project, there is no technical reason to choose Windows hosting over Linux.
Cost and licensing implications
Because Windows requires a commercial licence, Windows hosting plans are typically priced higher than equivalent Linux plans from the same provider. This cost is only worth paying if your site genuinely depends on Windows-specific technology — otherwise it is an ongoing expense with no corresponding benefit. When comparing prices between providers, make sure you are comparing plans on the same operating system, along with the other checks in Comparing Apples to Apples: Currency, Billing Cycles, and Total Cost.
How this decision interacts with your CMS choice
If you already know which content management system or platform you plan to use, that often settles the operating system question for you. Most popular content management systems, including WordPress, are built to run on Linux. Choosing your platform first, then confirming which operating system it requires, is usually a more direct route to the right answer than starting from the operating system itself.
*This article was drafted with the help of AI. It was fact-checked and edited by a real person.