Last updated August 2026
Looking for premium .IO domains for sale? A premium .IO domain is a short, dictionary-grade or highly brandable name on the .io extension, the kind tech buyers pay for because it signals credibility and is easy to recall. BoldDomains lists premium .IO domains available to buy now, each with its price shown upfront and a secure escrow transfer. Browse the curated names below, search above, or see all .IO domains for sale.
Premium .IO Domain Names for Sale
Curated names on the tech-standard extension, each with its price upfront
Why Tech Buyers Pay for a Premium .IO
Originally the country code for the British Indian Ocean Territory, .io was adopted by the tech industry as its own. "I/O" means input/output in computing, which makes it a natural fit for software companies, APIs, and developer tools.
Adoption started with developers and startups who could not justify a six-figure .com. It has grown into something more: a premium .io now signals tech credibility in a way that other alternative extensions do not.
Plenty of well-known tech products run on .io, alongside countless developer tools and APIs. The extension has earned a level of legitimacy that .xyz, .tech, and others have not matched.
For a tech startup, a premium .io can beat a weak .com outright. A short, memorable .io often outperforms a longer or hyphenated .com on brand perception, and it costs a fraction of the equivalent premium .com.
The premium .io domains on this page are the best available names on the extension: short, clean, and brandable, the ones tech founders actually search for.
Developer Cred
.IO is recognized by developers as a legitimate tech extension. API products and dev tools fit here naturally.
Shorter Names Available
Quality short names are still findable on .io when the .com equivalents are taken or cost millions.
Startup Standard
Many successful startups launched on .io. It is an accepted norm across the startup ecosystem.
Better Value
Premium .io domains typically cost less than equivalent .com names while staying highly respected.
When a Premium .IO is the Right Choice
Perfect for: Developer tools, APIs, SaaS products, tech startups, open source projects, and anything aimed at technical audiences. If your users are developers or tech-savvy professionals, .io is a natural fit.
Works for: General B2B software, startups in any industry that want to signal modernity, and consumer tech products with a technical angle. Plenty of successful consumer products launched on .io.
Less ideal for: Traditional businesses, local services, or products aimed at non-technical, older demographics. A law firm or accounting practice might confuse clients with a .io address.
Consider carefully: Enterprise sales into very traditional industries. Tech-forward enterprises accept .io, but some older IT departments still lean toward .com. Know your buyer.
The rule of thumb: if you are building something technical that people will use or buy, a premium .io is respected and worth the price. If your audience might not know what I/O means in computing, weigh whether .io adds confusion.
What Premium .IO Domains Actually Sell For
Public sales data is the only honest place to start a negotiation. Plenty of deals close under non-disclosure, so the visible record understates the top of the market rather than overstating it.
Highest reported .io sales on record
| Domain | Reported price |
|---|---|
| Mint.io | $230,000 |
| Metaverse.io | $175,000 |
| Ledger.io | $120,000 |
| Magnus.io | $104,500 (2026) |
| Auction.io | $100,000 |
| Cloud.io | $45,000 |
No publicly reported .io sale has crossed seven figures in the past five years, which is the clearest difference between .io and .ai at the very top of the market. A premium .io buys you a short, clean tech brand, not a trophy asset.
Price tiers you will actually meet
Holding cost: roughly 1.89 million .io domains were registered worldwide as of June 2026. First-year registration runs from about $15 to $125 depending on registrar, and renewals average closer to $50 to $60 per year, so budget the renewal, not the promo price.
Last updated August 2026. Sale prices are publicly reported figures and are shown for comparison only, not as an appraisal of any listing on this page.
.IO Domains for Sale: The Extension at a Glance
Before you compare .IO domain names against a .com, these are the facts that decide the question: who runs the registry, how widely the extension is used, what it costs to hold, and how Google treats it.
| Attribute | Detail |
|---|---|
| Registry | Identity Digital. A country-code TLD assigned to the British Indian Ocean Territory, used generically worldwide. |
| Adoption | Roughly 1.89 million registrations, a default across startups, SaaS, and developer tools. |
| Eligibility | Open to anyone, first come first served, with no local presence requirement. |
| Registration price | About $35 to $60 a year at most registrars, higher than .com by design. |
| Aftermarket | Short dictionary-word names trade from the low thousands into six figures. Mint.io at $230,000 is the highest public sale. |
| SEO treatment | Google treats .io as a generic extension, so it ranks the same as a .com. |
Registry pricing varies by registrar and changes over time. Confirm the renewal price, not the first-year promo price, before you commit.
Buy the .IO when
- You sell to developers, founders, or technical buyers who read .io as a software product.
- You are building a SaaS platform, an API, or a developer tool.
- The matching .com is unavailable or priced far beyond the round you have raised.
- You want a short, clean, one-word brand instead of a longer hyphenated .com.
Hold out for the .com when
- Your buyers are mainstream consumers rather than technical users.
- Type-in traffic and universal recognition drive the business model.
- You are building a category brand you expect to outlive the current product.
- A competitor already holds the matching .com and actively uses it.
Why do startups pay more for a .io domain?
Because .io reads as technical and modern to the exact audience an early startup sells to: developers, founders, and investors. The suffix signals a software product, and short .io words are scarce, so the aftermarket prices them like premium real estate. For a developer tool or an API, that recognition is often worth more than the equivalent .com.
Is a .io domain good for SEO?
Yes. Google treats .io as a generic top-level domain, so it ranks the same as a .com with no penalty attached to the extension. Rankings come from content, links, and site quality. The only indirect cost is losing type-in traffic to whoever owns the matching .com, which is why many teams eventually buy both.
Is the .io domain going away?
No. The extension remains open for registration, renewal, and transfer, and Identity Digital continues to operate it normally. The question comes from the sovereignty change affecting the British Indian Ocean Territory, but country-code extensions have survived similar transitions before with long retirement timelines measured in years, not months. Nothing about the current registry operation blocks a purchase today.
How to Buy a .IO Domain
There are two routes and which one applies depends entirely on whether the name is still unregistered. Almost every short .io word is already taken, so in practice most buyers end up on the second route.
If the name is unregistered
Register it at any accredited registrar for roughly 35 to 60 dollars a year. Check availability first, then register for the maximum term you are comfortable with. This is the cheap path and it is only available on names nobody wanted, which is why the good ones are never here.
If the name is already owned
Buy it on the aftermarket. On a marketplace listing the price is published and the platform handles the transfer, so you pay and the name moves. Buying privately from the registrant means agreeing a price yourself and settling through domain escrow so nobody wires money to a stranger.
Where can I buy .IO domains?
From a registrar if the name is still free, or from a domain marketplace if it is already registered. Marketplaces list owned names at a published price with the transfer handled for you. Registrars only sell what nobody has claimed, which for a short .io word is almost never the case.
Why are .io domains popular?
Because the two letters read as input output to a technical audience, and a wave of well known developer tools and SaaS products adopted it early. That association now does the work: a .io tells a developer what kind of company you are before they read a word of your copy. Scarcity of short names keeps prices firm.
.AI vs .IO: which extension should you buy?
Pick .ai if the product itself is the model or the intelligence, and .io if it is developer infrastructure, an API, or a technical platform. Both are treated as generic top-level domains by Google, so neither carries an SEO advantage. The real difference is cost: .ai now carries an 80 dollar wholesale rate with a two year minimum at registration, while .io runs roughly 35 to 60 dollars a year. Our full breakdown is in .io vs .ai domains, and if you are weighing either against a .com, see .ai vs .com domains.
Are there .IO domains still available?
Yes, but availability splits sharply by length. Longer and compound .io names can still be registered new. Anything short, pronounceable, or a real dictionary word is long gone and only reachable on the aftermarket. That is the gap a curated marketplace fills, and it is why the names below carry aftermarket rather than registration prices.
Premium .IO Domain Questions
What is a premium .IO domain?
A premium .IO domain is a short, brandable, or dictionary-word name on the .io extension that holds resale value beyond a standard registration. These names are already registered and sold on the aftermarket because they are memorable, easy to type, and signal tech credibility, so buyers pay a one-time premium to own them.
How much do premium .IO domains cost?
A standard .IO registration runs roughly $35 to $60 per year. Premium .IO domains on the aftermarket sell from a few hundred to several thousand dollars, priced by length, brandability, and demand. The shorter and more brandable the name, the higher the price. For a fuller breakdown, see how much a domain name costs. Every premium .IO domain on BoldDomains shows its exact price upfront.
Where can I buy premium .IO domains?
You buy premium .IO domains from a marketplace like BoldDomains, where short, already-registered .IO names are listed for sale with the price shown on each listing. The marketplace handles secure escrow and transfer, so you get a name that would otherwise be taken without negotiating a private deal. Browse the full .IO collection to compare.
Are premium .IO domains worth it?
Yes, for tech startups and developer products a premium .IO is often worth it. A short, memorable .io frequently outperforms a long or hyphenated .com on brand recall, and it usually costs far less than an equivalent premium .com. Still weighing extensions? Compare .io vs .com and .io vs .ai before you decide. The value comes from owning a clean, credible name your audience trusts.
What makes a .IO domain premium?
Length, brandability, and demand make a .IO domain premium. The best premium .IO names are short, often one word or under eight letters, easy to spell and say, free of hyphens or numbers, and relevant to tech or SaaS. Scarcity does the rest: once a great short name is taken, the aftermarket is the only way to get it.
Can I lease a premium .IO domain instead of buying it?
Yes. Many premium .IO domains on BoldDomains can be leased to own, so you put a deposit down and pay the rest in monthly installments while using the name right away. The domain transfers to you once the balance is paid off. Each listing shows whether a payment plan is available.
Keep Exploring
All .IO Domains for Sale
The full .io collection, from short and brandable to startup-ready.
Domains for Developers
Names built for dev tools, APIs, and technical products.
SaaS Domains
Brandable names for software-as-a-service companies.
Startup Domains
Short, memorable names for your next venture.
Short Domains
The shortest, most valuable names across extensions.
Lease to Own Domains
Secure a premium name now and pay it off monthly.
Secure Your Premium .IO Domain
A premium .io combines tech credibility with brandability. Browse the selection and find a name that signals you belong in tech.