Why Are .io Domains So Expensive? (And Are They Worth It in 2026?)

A .com domain from Namecheap costs around $12 per year. The same name on a .io extension runs $30–60 depending on your registrar. Some .io domains cost $90+ annually for premium registrations.

Founders ask this constantly: why? And is it worth it?

Both questions have clear answers.

Why .io Domains Cost More: The Actual Reason

The .io extension is technically the country code TLD (ccTLD) for the British Indian Ocean Territory. Like .co (Colombia) and .ai (Anguilla), it was repurposed by the tech community for its double meaning — "IO" is a common abbreviation for "input/output" in computer science.

Because .io operates as a ccTLD, its pricing structure is different from generic TLDs like .com (which ICANN governs with standardized pricing). The registry that controls .io — currently operated by the Internet Computer Bureau — sets its own wholesale prices, which are significantly higher than .com's.

In short: there's no competitive pressure on .io pricing at the registry level. The registry charges what it charges, registrars mark up on top of it, and founders pay the result.

The numbers as of 2026 (approximate by registrar):

Is a .io Domain Worth the Premium?

It depends entirely on what you're building.

Yes, .io is worth it if:

• You're building a developer tool, SaaS product, or technical B2B platform
• Your target users are software engineers or technical founders
• You want to signal "I'm a tech company" without saying it
• The equivalent .com is taken or costs significantly more on the aftermarket
• You're fundraising and pitching to technical investors

In the startup world, .io has become the de facto "technical startup" signal. Companies like Linear (linear.app), Notion (notion.so), Vercel (vercel.com, but acquired), and hundreds of YC companies launch on .io first. Your users will not think twice about it.

No, .io may not be worth it if:

• You're building a consumer brand targeting non-technical users (stick with .com)
• You're in a local services business where domain credibility means .com
• The .com of your name is available and affordable
• You're bootstrapped and $40/year versus $12/year matters

The practical test: search 10 recent YC companies in your space. What TLD are they on? If most are on .io or .com with no .ai competitor available, .io is fine. If the pattern in your space is .com, don't fight the convention.

The .io Situation in 2024–2026: What Changed

In 2024, the United Kingdom agreed to cede the Chagos Islands (British Indian Ocean Territory) to Mauritius. This raised a question: if the territory ceases to exist, does the .io TLD go away?

The short answer from ICANN and domain industry experts: probably not in the near term, and almost certainly not abruptly. The .io registry has operated independently of the territory's political status for years, and the transition if it happens would be managed over years, not months.

The medium-term risk is real but manageable: if you're building a 10+ year company, consider having a .com fallback secured. If you're building a startup on a 3–5 year horizon and you need the .io signal for your market, the risk is currently low enough to proceed.

Cheapest Places to Register a .io Domain (2026)

If you've decided .io is right for your startup, these registrars consistently offer the lowest prices:

1. Porkbun — typically $27–32/year, clean interface, good WHOIS privacy
2. Cloudflare Registrar — $29/year, at-cost pricing (no markup), requires Cloudflare account
3. Namecheap — $32/year, reliable, good for managing multiple domains

Avoid GoDaddy and Google Domains for .io specifically — they price .io significantly higher than competitors.

How to Check If Your .io Name Is Available

Don't check registrars one at a time. Namefiniti checks .com, .io, and .ai availability simultaneously as it generates name suggestions — so you see which names are actually available across all three before you get attached to one.

See how the domain checking works: namefiniti.com/how-it-works