.io

The .IO Domain Complete Guide

.io is the definitive address for service-based businesses. It clearly communicates capability and professionalism to potential clients.

1,406,559
Registered Domains
Download list of .io domains →
1997
Year Created
$30-60
Annual Cost
Identity Digital
Registry

History of .IO

Originally assigned to the British Indian Ocean Territory (BIOT), .io has transcended its geography to become the de facto standard for tech startups, engineers, and gaming (input/output).

Why Choose .IO

Tech Industry Standard

The most recognized domain for SaaS, APIs, and developer tools.

Smart Wordplay

Perfect for short, punchy domain hacks (scenar.io, aud.io).

Registration Requirements

Open to anyone worldwide. No local presence in BIOT is required.

Pricing and Renewal

More expensive than .com, reflecting its premium status in the tech world.

Frequently Asked Questions

SaaS startups, open-source projects, and tech conglomerates use .io to signal technical competence.

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