A .io domain is a top-level domain originally assigned to the British Indian Ocean Territory. Today, it’s widely used by startups, developers, and technology companies, and is commonly associated with software, apps, and digital products.

To buy a .io domain, start by searching for your preferred domain name. If it’s available, you can select it, complete the domain registration process, and secure it for your use. Once registered, you can connect it to your website, app, or online project.

.io domains typically cost more than standard extensions like .com, with higher registration and renewal fees depending on the provider. Pricing varies based on availability and demand, so it’s best to check current rates when searching.

.io stands for the British Indian Ocean Territory, the country that manages the domain. It’s also commonly associated with “input/output” in computing, which has contributed to its popularity among tech companies and developers.

.io domains often have higher registration and renewal costs due to registry pricing and strong demand from startups and tech companies. Unlike more common extensions, pricing structures and demand can drive costs higher over time.

Startups often choose .io domains because they’re short, brandable, and widely recognized in the tech space. The extension has become closely associated with software products, SaaS platforms, and developer tools, making it a natural fit for modern, product-focused brands.

A .com domain is more widely recognized and has broader general appeal, while a .io domain is often preferred by startups and tech-focused brands. Many businesses choose to register both to secure their brand and use each strategically.