Find your .io domain name

Search for available .io domains and register yours with Squarespace. Learn more

Why choose .io for your domain?

A .io domain can be an excellent choice for entrepreneurs and business owners who want to establish a strong brand online. This extension has gained popularity among tech and SaaS startups in particular, as a reference to input/output in computer science. Additionally, these top-level domains are more commonly available than .com and .co, allowing you to find a unique and memorable web address for your business. By choosing a .io domain, you can convey a sense of cutting-edge professionalism while still keeping your website simple and easy-to-remember for your target audience.

Tools included with every .io domain

Privacy and Protection

Every eligible domain includes free WHOIS privacy to protect your personal information, plus two-factor authentication options and a free SSL/TLS certificate from Let’s Encrypt to secure your site.

Free SSL/TLS certificate

Squarespace domain users receive a free, automatically updated SSL/TLS certificate from Let\'s Encrypt so your visitors know your site is secure.

Premium DNS Security

Our DNS is powered by industry leading services, like Google CloudDNS, to provide secure and reliable connection and ensure your domain always stays online and authenticated.

More top-level domain options

Is your .io domain name taken? Squarespace offers hundreds of TLDs to continue your search:

.com

Learn more

.net

Use this popular .com alternative to claim a professional, trusted domain for your business.

Learn more

.shop

Make your storefront stand out with a domain designed for ecommerce.

Learn more