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Register a .io domain

Get a .io — the de facto ending for tech. Originally the country code for the British Indian Ocean Territory, .io became the unofficial home of developer tools, SaaS, and modern tech startups. If you build for technical users, .io signals you're one of them.

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$40.40/yr Currently renews at $40.40/year. Minimum 1-year registration: $40.40 before tax. Privacy free

Who picks .io?

Developer tools and APIs
B2B SaaS for technical buyers
Early-stage tech startups

What it signals

Modern, technical, "we know what we're doing." Used by GitHub, Sentry, Linear, and a thousand other tools your developers already trust.

Pros

Strong "we're a tech company" signal.
Way more short, memorable names still available than .com.
Tech crowd reads .io as a credible alternative to .com.
Common pattern in product naming (e.g., something.io).

Watch-outs

Premium price (~$50/yr) — much more than .com.
Less recognized by non-tech consumers.
Country-code TLDs have historically had outage risk (rare, but worth noting).

Examples of .io domains in the wild

github.io sentry.io linear.io pitch.io splice.io pingdom.io

.io at renewal — us vs the big registrars

The first-year promo isn’t the number that matters — the renewal price is, because that’s what you pay every year after. Competitor renewal figures sampled 2026-09-30.

Registrar	Renewal / yr
Modusdom current rate	$40.40
Porkbun	$51.80 2026-09-30 · Source
Namecheap	$75.98 2026-09-30 · Source

Registration and renewal rates can differ. Competitor rates shown here are dated observations or explicitly labeled estimates; verify the current quote and fees with each provider. See the full renewal-price index or the detailed registrar comparison.

Common questions about .io domains

How much does a .io domain cost?

Standard registration is currently $40.40 per year. The minimum registration term is 1 year(s), totaling $40.40 before any applicable tax. Premium names can have separate pricing.

What is the renewal price for a .io domain?

The current standard renewal rate is $40.40 per year. Review the renewal term and total in your account; rates can change.

Do I get free WHOIS privacy on a .io domain?

Yes — free WHOIS privacy is included on every .io domain, hiding your name, address, email and phone from the public WHOIS record at no extra cost.

Can I transfer an existing .io domain to Modusdom?

Transfer eligibility, authorization requirements, timing and any term extension depend on the ending and registry. Check the transfer quote before ordering. Keep existing DNS and email records in place during the move.

Is a .io domain right for my business?

Modern, technical, "we know what we're doing." Used by GitHub, Sentry, Linear, and a thousand other tools your developers already trust. It is a strong fit for: Developer tools and APIs; B2B SaaS for technical buyers; Early-stage tech startups.