What is a .co domain?

A .co domain is a top-level domain (TLD) that’s globally recognized and often used as a modern domain alternative to .com. It’s short, professional and closely linked to the word “company.”

What does the .co extension refer to?

The dot co originally represented Colombia but is now a global generic top-level domain (gTLD) for businesses and startups. It’s used widely for a clean, memorable web address with international appeal.

What is a .co domain used for?

A .co extension is commonly used by startups, tech firms, personal brands and global businesses. It’s ideal for anyone creating a standout site with a forward-thinking, international focus, making it a popular choice for some of the best .co domains.

Is the .co TLD considered a country-code or a generic top-level domain?

While the .co TLD is technically a country-code domain for Colombia, Google treats it as a generic top-level domain. This co top level domain is globally recognized and perfect for any international business website.

Who can register or buy a .co domain extension?

Anyone from individuals, businesses or brands can register a co domain. There are no restrictions on this Colombia domain. It’s a great choice for startups, creators and companies looking for a flexible domain extension to represent their online identity.

Should I choose .co or .com: what’s the difference?

Choose .com for broad familiarity and universal recognition. Go with .co if your ideal domain name is taken or you want greater availability and a more modern, memorable brand. Both are trusted TLDs for the internet.

Do .co domains affect SEO or rankings?

No. Google ranks .co websites the same way it ranks .com or .net, giving them equal SEO potential when paired with quality content and strong optimization.

How much does a .co extension cost?

A .co domain extension at Bluehost, typically costs around $29–38/year, depending on promotional pricing. Always check the latest price before you purchase co domain. Compared to standard TLDs like .net or .org, it offers greater availability and strong brand appeal.

For how many years can I buy .co domain?

You can register co domain name with Bluehost for up to five years in one transaction, ensuring long-term protection for your website and brand identity. Check .co availability to secure your ideal domain name for the future.

Where can I register .co domain name quickly?

You can register .co name quickly through Bluehost. Simply search for your preferred name using the Bluehost domain search tool, select the available option and complete the secure checkout process to finalize your registration.

How do I buy .co domain for my new business website?

You can buy co domain directly through Bluehost. Enter your desired domain in the Bluehost domain search tool, choose the available option, add it to your cart and complete the registration to secure your business name online.

How can I renew my co domain registration?

You can easily proceed with your renewal via your Bluehost dashboard. Use the search bar for buying co domain, then complete the renewal or enable auto-renew to keep your .co websites.

How do I transfer a .co domain to Bluehost?

The transfer process is simple: unlock your domain at your current registrar, get the authorization code and start the domain transfer through Bluehost. Use the search bar to find your domain name and proceed step-by-step. Transfers are completed within 5-7 working days.

Which major companies use a .co domain?

Many major companies use a .co domain for branding, short links and creating sleek online identities. For example, Twitter, Google, Amazon, Apple and more have all adopted .co domains.

BUY .SI DOMAIN NAME

Buy .si for the super intelligence era with Bluehost

Register .si domain with Bluehost and create a memorable online identity for your Super Intelligence brand or tech project.

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What is the .si domain price?

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£18.84 Your next great name starts here

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£18.84 Same price. No renewal surprise.

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Pricing in USD. Hosting and other services sold separately.

Why choose a .si domain?

An established extension. A new chapter for ambitious brands.

315,000+

Total .si domains registered

46,000+

New registrations in September

~19K

Average daily registrations

3 years

Maximum registration period

1992

The year .si was introduced

2–63

Characters in your domain name

Registration figures: Register.si snapshot, October 6, 2026. Counts change daily. Domain history.

What makes a .si domain a smart choice?

A familiar country code. Shorthand for superintelligence.

An established domain. A new meaning.

.si is Slovenia’s country-code domain, in service since 1992. Today, its initials offer a short, memorable way to signal super intelligence.

Protect the brand you’ve built

Already have a .com or a .ai? Secure the matching .si and point it to your existing website. Keep your name ready for what comes next.

Launch your next big idea

Building an AI or tech business? Give your venture a name that reflects your ambition, from your first idea to your first customer.

Create opportunities for your clients

Agencies and consultants can secure names for client brands, new products, and AI-focused campaigns—all in one account.

dot si website showing graphs with increased views and traffic

What comes with every .si domain?

Everything you need to manage your name and make your next move.

Easy setup and management

Manage your name, connect your website, and keep your domain details in one place.

Auto-renewal management

Turn on auto-renewal and keep your payment details current to help your domain stay yours.

Bluehost DNS management

Add records, connect services, and point your .si to the website you already have.

Domain lock and security

Help protect your domain from unauthorized transfers and manage its security settings.

24/7 expert support

Get help from real people by phone or chat, whenever you need a hand.

One-click hosting integration

Connect your domain to Bluehost hosting and WordPress, then bring your idea to life.

Why choose Bluehost for your .si domain?

Easy domain management: Manage all your domains from a single dashboard. Update DNS records, edit contact details, set up domain forwarding and connect your domain to websites, email or third-party services anytime.

Flexible DNS control: Access and manage DNS records including A, CNAME, MX and TXT records with full control over your domain configuration.

Seamless connections: Easily connect your domain to hosting, email services or external platforms whenever you’re ready to build your website.

Domain Lock: Protect your domain from unauthorized transfers or changes by enabling domain lock directly from your account.

Domain Expiration Protection: Prevent accidental domain loss with automatic safeguards that strengthen your domain ownership protection even if you miss a renewal.

Domain Privacy Protection: Keep your personal contact information out of public WHOIS records with proxy information and maintain professional credibility.

Simple setup: Register your domain in just a few steps and start managing it instantly from your Bluehost dashboard.

Renewal control: Choose between manual or auto-renewal options and manage your domain lifecycle with ease.

Easy updates: Modify nameservers, update WHOIS details or transfer your domain anytime without complex processes.

Wide range of TLDs: Choose from popular and niche extensions to match your brand or business.

Domain transfer services: Easily bring your domain to Bluehost or move it when needed.

Scalable add-ons: Add email hosting, security features or website services as your needs grow.

24/7 availability: Our team of experts is available around the clock via phone & chat to help with domain management, security and setup.

Expert guidance: Whether you’re updating DNS or transferring a domain, our team is here to support you at every step.

Choose a .SI

AI is now SI
Is your brand?

Protect the name you’ve built. Make room for the idea that’s next. Your .si starts at $24.99 a year.

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Explore .si domain alternatives

Give every part of your business a place online. Find the extension that fits your next idea.

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For the next wave of technology.

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.io

For builders, tools, and startups.

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.com

For a familiar business address.

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.online

For a world of possibilities.

Explore .online

.si domain FAQs

What is a .si domain?

.si is the country-code domain for Slovenia, introduced in 1992 and operated by ARNES through Register.si. Its initials are also being used as shorthand for “super intelligence,” giving AI and technology brands another way to express their identity.

Can I register .si if I’m not in Slovenia?

Yes. Individuals and businesses around the world can register a .si domain. You don’t need to live in Slovenia or have a local business address. Registrations are subject to availability and registry rules.

How much does a .si domain cost at Bluehost?

A .si domain costs $24.99 per year, with the same $24.99 annual renewal price. Hosting, business email, and other services are purchased separately. Check your order summary for the final total.

Should I use .ai or .si for my business?

Choose the extension that best fits your brand and audience. .ai has a strong association with artificial intelligence; .si offers a short name that can express super intelligence. If both names fit your plans, you can register both and direct visitors to one website.

Is WHOIS privacy available for .si?

WHOIS privacy is not included with .si registration. You must provide accurate registrant information. The registry limits publication of personal data under its data-protection policies; this is separate from a registrar’s optional privacy service. Read the registry’s data policy.

Can I use .si alongside my .com?

Yes. Keep your existing website and point your .si name to it using domain forwarding or the appropriate domain settings. You can also use .si for a separate product, campaign, or new business.

How long can a .si domain name be?

Your name must be 2–63 characters long. Letters, numbers, and hyphens are allowed; a hyphen cannot be the first or last character. Two hyphens in the third and fourth positions are reserved for internationalized domain names. View the .si registration rules.

Does a .si domain include a website or hosting?

Your domain is your address on the web. Hosting, a website builder, and business email are separate services you can add through Bluehost. You can also connect your domain to an existing website.

Does .si stand for Super Intelligence?

.si officially represents Slovenia in the domain name system. However, “SI” is increasingly being used as shorthand for Super Intelligence, creating new interest among technology and AI brands.

How do I register a .si domain?

To register a .si domain, search for your preferred domain name with Bluehost or use our AI domain name generator. If it is available, select it, enter the required details and complete checkout.

BUY .SI DOMAIN NAME

Buy .si for the super intelligence era with Bluehost

What is the .si domain price?

Why choose a .si domain?