Is .io good for a tech startup?

Updated October 2026 · How we answer

Short answerYes, .io is popular among tech startups, especially in software and blockchain. It signals innovation, but it's not ideal for all audiences.

Why .io became a startup favorite

.io originally stood for the British Indian Ocean Territory, but it was rebranded by the tech community as an abbreviation for 'input/output.' Many developer tools, SaaS companies, and crypto projects use .io because it feels modern and technical.

Startups like .io because it's short, easy to type, and often has more available names than .com. It also helps signal that you're in the tech space, which can attract investors and early adopters.

Potential downsides

Outside the tech bubble, .io can confuse non-technical users. Some may mistake it for a country domain or not recognize it as a valid website ending. If your customers are mainstream, a .com might be safer.

Also, .io domains are more expensive than .com. Renewals typically cost $30–$60 per year, and premium names can be much higher. There have also been concerns about the long-term stability of the .io registry, though it remains operational.

When to choose .io

If your target audience is developers, tech enthusiasts, or investors, .io can be a strong choice. It's also good if your desired .com is taken and you want a short, memorable alternative.

For a broader consumer audience, consider .com first. You can always use .io for a side project or API documentation.

  • Great for SaaS, developer tools, and blockchain startups
  • More available names than .com
  • Higher renewal costs ($30–$60/year)
  • May confuse non-technical users
  • Consider .com if you target mainstream consumers

Common mistakes

  • Assuming .io is only for companies in the British Indian Ocean Territory—it's open to all.
  • Thinking .io guarantees startup success or investor interest.
  • Ignoring the higher renewal cost and long-term registry stability.