Short answer: .io domains cost $30–40/year because the registry charges wholesalers far more than .com's ~$10/year wholesale — and tech demand lets them get away with it. The cheapest tracked .io registration is $14.98 with renewals at $38.95 (October 2026 pricing data), versus .com at $4.98/$10.28. You're paying a tech-brand tax on a tiny island's country code. Whether it's worth it depends on what you're building — and there's one risk to .io that almost nobody talks about.
What .io actually is
.io is the country-code domain (ccTLD) for the British Indian Ocean Territory — a handful of islands in the Indian Ocean with no permanent civilian population. The Internet Assigned Numbers Authority (IANA) delegated it to British entrepreneur Paul Kane in 1997, who operated it for private profit under the trade name "Internet Computer Bureau" from 1997 until 2017. The first .io domain ever registered was levi.io, taken by Levi Strauss & Co. in 1998.
In April 2017, Kane sold the Internet Computer Bureau holding company to registry operator Afilias for $70 million in cash. Afilias was itself sold to Donuts in December 2020, which was acquired by private equity firm Ethos Capital a month later in January 2021. So today's .io is ultimately a private-equity-owned asset — which partly explains the pricing discipline.
Why the price is high: three reasons
1. The wholesale floor is high. Every TLD has a registry wholesale price that sets the minimum any registrar can charge. For .com it sits around $10–11/year. For .io, the wholesale cost passed to registrars is roughly triple that — registrars simply cannot sell .io at .com prices without losing money. The $30–40 retail range is wholesale plus normal retail margin, not gouging.
2. "IO" means input/output. The two letters happen to be the universal abbreviation for input/output in computing. That accident turned a tiny territory's domain into the default badge of tech startups — and when your customers are funded startups with low price sensitivity, there's no competitive pressure to cut prices. Demand is inelastic: a YC startup doesn't pick its domain on a $25 price difference.
3. Google treats it as generic. Unlike most country codes, Google classifies .io as a generic top-level domain, so .io sites rank globally rather than being geotargeted to the Indian Ocean. That single policy decision — made because of .io's tech usage — removed the biggest practical drawback of building on a ccTLD and cemented its premium status.
The risk nobody mentions: the sovereignty question
Here's the uncomfortable part. In 2021, the UN's International Tribunal for the Law of the Sea ruled that the United Kingdom has no sovereignty over the Chagos Archipelago — the islands the British Indian Ocean Territory comprises — and that sovereignty belongs to Mauritius. The UK disputes the ruling and doesn't recognize it, but the legal processes continue.
Why does this matter for your domain? Country-code domains exist because of ISO country codes. If the British Indian Ocean Territory were ever formally extinguished as an entity, the "IO" country code — and theoretically the .io domain — could face an uncertain future. This is a tail risk, not an imminent event: the UK shows no sign of relinquishing control, and ICANN transitions for retired ccTLDs historically span years with grandfathering. But if you're building a company you hope lasts decades on a .io, you should know the foundation has a legal asterisk that .com doesn't.
Practical takeaway: for most startups, this risk is negligible against a 5–10 year horizon. For a brand you intend to hold for 30 years, factor it in — or own the .com as a hedge.
Is .io still worth it in 2026?
Honest assessment:
Worth it when: you're a dev tool, SaaS, or tech startup where the audience reads ".io" as a credibility signal; the .com version of your name is taken or costs five figures on the aftermarket; you want a short, memorable domain and the .io is available at standard price.
Not worth it when: you're price-sensitive (a .co does the same job for a third of the renewal cost); your audience is non-technical (mainstream users still default to typing .com); you need the domain to work for decades without legal footnotes; the specific .io you want is registry-premium priced.
5 cheaper alternatives that do the same job
All prices from October 2026 tracked pricing (cheapest registration / renewal):
| Extension | Registration | Renewal | The case for it |
|---|---|---|---|
| .co | $3.98 | $24.90 | The closest .io substitute — short, startup-credible, far cheaper to hold |
| .dev | $7.98 | $13.98 | Google's extension, built for developers, honest pricing |
| .app | $7.98 | $14.98 | Same Google pedigree, works for any software product |
| .tech | $1.99 | $45.99 | Dirt-cheap entry — but check the renewal column (see the renewal trap) |
| .com | $4.98 | $10.28 | Still the cheapest long-term home for any brand; always check here first |
The pattern: .io's $38.95 renewal is 3–4× the renewal cost of every alternative except .tech (whose own renewal spike is worse). Over five years, a .io costs roughly $170 versus ~$46 for a .com. That's the real price of the tech badge — make sure your brand earns it back.
