Register your .io domain
Register your .io domain at Theory7
- Active immediately after registration
- Free DNS management and DNSSEC
- Support team ready to help
Why choose Theory7?
Built for developers
Tech extensions are the standard in the developer community. Show immediately that you represent a technical company or project.
Startup-ready
From MVP to scale-up: tech domains are associated with innovation and growth companies. Perfect for your next SaaS product.
Modern image
A tech extension communicates that you're ahead of the curve. Ideal for companies in software, AI, cloud, and digital services.
Internationally recognized
Tech domains are known worldwide in the tech sector. No country-bound associations, purely focused on innovation.
Reliable registration
Register through Theory7 with free WHOIS privacy, SSL certificate, and automatic DNS configuration. Live within minutes.
Safe & protected
Includes free SSL, DDoS protection, and daily backups when combined with Theory7 hosting.
Start with your own domain name
Instantly check whether your desired domain name is still available
Frequently asked questions
Yes, a .io domain is available to everyone, regardless of location or industry. There are no specific requirements or restrictions on registration. Check the availability of your desired name through our domain name checker and register right away.
At Theory7, your .io domain is usually registered and active within minutes. After registration you can immediately start setting up DNS records, connecting to hosting, or configuring email. Check our current domain name prices for an overview of the costs.
Absolutely. Many tech companies and startups worldwide use .io domains. While a country-code extension is the standard for local businesses, .io is ideal if you're targeting an international audience or want to position yourself as an innovative tech company. You can of course register both extensions for maximum protection of your brand name.
Yes, you can easily move your existing website to a new .io domain. Theory7 helps you with the technical migration and ensures a smooth transition. Check out our complete range of domain name services or contact our support team for personal advice about your domain move.
Register your .io domain at Theory7.
According to Verisign, more than 350 million domain names are registered worldwide. SIDN reports more than 6 million .nl domain names registered.
A .io domain is the ultimate choice for tech startups, SaaS companies, and innovative entrepreneurs who want to strengthen their digital presence. At Theory7 you register your .io domain quickly, securely, and with professional support. The .io extension has become one of the most recognizable domain names in the technology sector and stands worldwide as a synonym for innovation, technology, and digital progress.
What is a .io domain?
The .io domain was originally assigned as the country-code top-level domain (ccTLD) for the British Indian Ocean Territory and is managed by the Internet Computer Bureau. Although it is technically a country-code extension, .io has developed its own identity that reaches far beyond its geographic origin. The abbreviation "I/O" stands for "input/output" in computing, which is how the extension was naturally adopted by the tech industry.
Since the rise of startup culture around 2010, .io has grown explosively in popularity. Thousands of technology companies, from small startups to established names, deliberately choose a .io domain to emphasize their innovative character. With millions of registered domain names, .io is now among the most popular extensions in the world, especially within the tech and software sector.
Benefits of a .io domain
- Immediate tech association - A .io domain immediately communicates that your company is active in the technology sector, creating instant credibility with your audience.
- Better availability - Where popular .com names have long been taken, .io still offers plenty of choice among short, memorable domain names that fit your brand perfectly.
- Worldwide recognition - The .io extension is recognized and respected internationally, without being tied to a specific country or region.
- Startup culture and innovation - Well-known companies such as GitHub (formerly github.io), Notion, and numerous Y Combinator startups chose .io, giving the extension a premium image.
- Short and powerful - With just two letters, .io is one of the shortest extensions, ideal for creating concise and easy-to-remember web addresses.
- Flexible use - Although popular in tech, .io is suitable for any industry that wants to present itself as modern and forward-thinking.
.io compared to other domain extensions
| Feature | .io | .com | .tech | .dev |
|---|---|---|---|---|
| Primary audience | Tech startups, SaaS | General, worldwide | Technology companies | Developers, software |
| Recognition | Very high in tech | Universal | High in tech | High among developers |
| Name availability | Good | Very limited | Good | Reasonable |
| HTTPS required | No | No | No | Yes (HSTS) |
| Registry operator | Internet Computer Bureau | Verisign | Radix | Google Registry |
| Suitable for e-commerce | Yes | Yes | Limited | Limited |
| SEO value | Good (international) | Excellent | Good | Good |
Register .io at Theory7
At Theory7 you register your .io domain with full support and additional services that complete your online presence. Our registration process is simple, fast, and transparent.
- Instant registration - Your .io domain is active and ready to use within minutes.
- Includes DNS management - Full DNS management through our user-friendly control panel, so you can adjust every setting yourself.
- Connect to web hosting - Combine your .io domain directly with one of our reliable hosting packages for optimal performance.
- Professional business email address - Make a professional impression with an email address on your own .io domain, easy to set up through our platform.
- Free SSL certificate - Secure your website with HTTPS, essential for trust and SEO ranking.
- Powerful VPS solutions - For tech projects that need more resources, we offer scalable VPS servers that work seamlessly with your .io domain.
- Support that's there for you - Our support team is ready to help so you always get a quick answer to your questions.
.io domain for SEO and online visibility
A common question is whether a .io domain ranks well in search engines. The answer is a resounding yes. Google treats .io as a generic top-level domain (gTLD), which means it offers the same SEO opportunities as a .com domain. Your .io website can therefore rank excellently in search results, both locally and internationally.
In fact, a .io domain can offer SEO advantages because it's shorter and more memorable than a long .com alternative. A concise, relevant domain name contributes to a higher click-through rate in search results. Combine your .io domain name with quality content and solid technical SEO, and you have a strong foundation for online visibility.
Frequently asked questions about .io domains
Can anyone register a .io domain?
Yes, a .io domain is available to everyone, regardless of location or industry. There are no specific requirements or restrictions on registration. Check the availability of your desired name through our domain name checker and register right away.
How long does it take to register a .io domain?
At Theory7, your .io domain is usually registered and active within minutes. After registration you can immediately start setting up DNS records, connecting to hosting, or configuring email. Check our current domain name prices for an overview of the costs.
Is a .io domain suitable for a company outside the tech hub countries?
Absolutely. Many tech companies and startups worldwide use .io domains. While a country-code extension is the standard for local businesses, .io is ideal if you're targeting an international audience or want to position yourself as an innovative tech company. You can of course register both extensions for maximum protection of your brand name.
Can I move my existing website to a .io domain?
Yes, you can easily move your existing website to a new .io domain. Theory7 helps you with the technical migration and ensures a smooth transition. Check out our complete range of domain name services or contact our support team for personal advice about your domain move.
Sources and references
- SIDN - sidn.nl
- ICANN - icann.org
- Verisign - verisign.com
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