From Tech to Territory: Uses of .io Domains

Alex Palmiere
March 28, 2025
minute read
io domain - what are io domains used for
Discover what are io domains used for in tech and gaming, their rise, and geopolitical context with our comprehensive guide.

what are io domains used for? The .io domain extension is primarily used by tech startups, gaming companies, and developers due to its association with "input/output" in computer science, marking it as a symbol of tech innovation and modernity. Initially the country code top-level domain (ccTLD) for the British Indian Ocean Territory, it has gained widespread popularity among various tech industries for branding and availability reasons.

With the digital world expanding rapidly, how you choose to present your brand online can make a huge difference. In a sea of domain options, .io stands out, offering a modern touch especially for tech-driven brands. Whether it’s for a fresh tech startup breaking into the scene or a gaming platform looking to connect players across the globe, the .io domain marks tech advancement and forward-thinking attitudes.

I'm Alexander Palmiere, and as a digital strategy expert and founder of Refresh, I specialize in helping businesses steer the complex online landscape with targeted solutions related to domain strategies. In this guide, let's explore all about what are io domains used for and how they can benefit your tech business.

Detailed infographic on what are io domains used for, including information on tech startups usage, gaming applications, and the British Indian Ocean Territory origin - what are io domains used for infographic infographic-line-5-steps-neat_beige

What are io domains used for vocabulary:

What are .io Domains Used For?

Tech Industry Applications

In the tech world, .io domains have become synonymous with innovation and technical prowess. This is particularly true for SaaS startups, open-source projects, and APIs. The "input/output" reference in computing aligns perfectly with these fields, symbolizing the flow of data and interaction between systems.

SaaS startups often choose .io domains to convey a sense of modernity and tech-savvy. For instance, many software companies use .io to highlight their focus on delivering software solutions over the internet, showcasing their cutting-edge approach.

Open-source projects also thrive under the .io domain. The domain's tech affiliation helps these projects gain credibility and visibility within the developer community. It signals a commitment to transparency and innovation, two core values of the open-source movement.

APIs, or Application Programming Interfaces, benefit from the .io domain as well. APIs are all about facilitating communication between different software applications, making the input/output symbolism particularly relevant. By using a .io domain, API providers can emphasize their role in enabling seamless data exchange and integration.

Gaming and Entertainment

The gaming industry has acceptd the .io domain with open arms, particularly for browser-based games and those with multiplayer components. The rise of .io games, such as Agar.io and Slither.io, exemplifies this trend.

.io games are known for their simple graphics and addictive gameplay, often played directly in web browsers. These games offer a quick and accessible gaming experience, attracting millions of players worldwide. The .io domain has become a hallmark of these games, signifying easy access and engaging multiplayer action.

The success of games like Agar.io and Slither.io has spurred the creation of many more multiplayer browser games under the .io domain. This trend has created a unique niche within the gaming industry, where players can instantly connect and compete with others globally.

By choosing a .io domain, game developers can tap into this established community and attract players who are already familiar with the genre. It also allows for creative naming opportunities, making the game titles memorable and easy to share.

Stat: .io games received around 192 million visits in 2017 - what are io domains used for infographic 4_facts_emoji_blue

The versatility and tech-centric appeal of .io domains make them a popular choice across various industries, particularly in tech and gaming. From SaaS solutions to addictive multiplayer games, the .io domain continues to be a symbol of innovation and connectivity.

The Rise of .io Domains in Tech

In the tech landscape, .io domains have carved out a niche, becoming a go-to choice for many innovative companies. Some of the standout websites using this domain include Opensea.io, Etherscan.io, and Greenhouse.io.

Opensea.io is a leading platform in the NFT (Non-Fungible Token) space. By using a .io domain, it aligns itself with the tech-savvy audience interested in blockchain and digital assets. The domain choice underscores its commitment to modern technology and innovation.

Etherscan.io serves as a blockchain explorer for Ethereum, providing users with a comprehensive view of blockchain data. The .io domain here reflects its role as a technical tool for developers and crypto enthusiasts, emphasizing its input/output function in processing blockchain transactions.

Greenhouse.io is a platform focused on recruiting and talent acquisition. By choosing a .io domain, Greenhouse positions itself as a tech-forward company, appealing to businesses looking to streamline their hiring processes with modern software solutions.

These examples highlight how .io domains are not just a trend but a strategic choice for tech companies aiming to improve their brand identity and connect with a tech-savvy audience.

Why Tech Startups Prefer .io

Tech startups often gravitate towards .io domains for several compelling reasons:

  • Tech Affiliation: The .io domain is closely associated with the tech industry, making it a natural fit for startups looking to establish credibility and connect with the tech community.

  • Branding and Domain Hacks: Startups leverage .io domains for creative branding. The domain can be used in clever ways to form memorable URLs, known as domain hacks. This helps in creating a distinctive brand identity.

  • Availability: With .com domains becoming scarce, .io offers greater availability. Startups can secure shorter, more relevant domains without compromising on their brand vision.

  • Input/Output Reference: The I/O in .io resonates with the tech community, symbolizing the flow of data and interaction. This makes it particularly appealing to companies focused on software, APIs, and digital platforms.

Tech startups choose .io domains to signal innovation and align themselves with a forward-thinking community. As a result, the domain has become a hallmark of modernity and technical expertise in the digital world.

The Geopolitical Context of .io Domains

Historical Background

The .io domain has an intriguing history tied to the British Indian Ocean Territory (BIOT). Originally introduced in 1997, it was designated as the country code top-level domain (ccTLD) for this region. The Internet Assigned Numbers Authority (IANA) delegated the management of .io to British entrepreneur Paul Kane, who operated it under the Internet Computer Bureau (ICB) until 2017. During this time, it was used alongside other ccTLDs like .ac for Ascension Island and .sh for St Helena.

In 2017, the domain registry changed hands when Afilias, a domain name registry services provider, acquired the Internet Computer Bureau for a hefty $70.17 million. This acquisition marked a significant shift in the management and commercialization of .io domains, further embedding them into the tech ecosystem.

However, the .io domain's origin is not without controversy. The UK government has stated that it receives no revenue from .io domain sales, contradicting previous claims by Kane that profits were distributed to the BIOT authorities. This discrepancy highlights the complex financial and administrative backdrop of the .io domain.

Potential Changes in Domain Status

The geopolitical status of the Chagos Archipelago, where the British Indian Ocean Territory is located, adds another layer of complexity to the future of .io domains. In 2021, the United Nations' International Tribunal for the Law of the Sea ruled that the UK has no sovereignty over the Chagos Archipelago. Instead, sovereignty belongs to Mauritius, a ruling the UK disputes.

This ruling raises questions about the future of the .io domain. If Mauritius gains full control over the territory, the ISO-3166 country code for the British Indian Ocean Territory may be extinguished, potentially affecting the status of the .io domain. Such a change could mirror the challenges faced by UK businesses unable to renew their .eu domain names post-Brexit.

As of October 2024, the UK announced plans to hand over sovereignty of the Chagos Islands to Mauritius, pending a finalized treaty. This move could lead to significant changes in the administration and recognition of the .io domain on the global stage. The tech community and businesses using .io domains are watching these developments, as they could have far-reaching implications for domain ownership and usage.

Pros and Cons of Using .io Domains

Advantages

Tech Affiliation and Recognition

The .io domain has become synonymous with the tech industry. Its connection to "input/output" resonates well with tech companies, making it a popular choice for startups and tech-savvy businesses. This association improves brand recognition and aligns your company with innovation and modern technology.

Greater Availability

Compared to traditional domain extensions like .com, .io domains offer greater availability. With only 0.6% of all domains worldwide using .io, there's a higher chance of securing a short and memorable domain name for your brand. This is crucial for startups looking to establish a strong online presence without compromising on their preferred name.

Creative Branding Opportunities

The .io extension allows for creative branding opportunities. Companies can create clever wordplays or shorten their URLs, making them more memorable. For instance, a portfolio site could use portfol.io, adding a creative twist that improves brand identity.

Search Engine Recognition

Google treats .io domains as generic top-level domains (gTLDs), meaning they are not restricted by geography. This classification ensures that .io websites can perform well in global search results, similar to more traditional extensions like .com. This is a significant advantage for businesses targeting international audiences.

Disadvantages

Higher Price

One downside to choosing a .io domain is the cost. They are generally more expensive than other domain extensions like .com or .net. For example, prices for .io domains can be as high as $60 per year. This can be a deterrent for startups with limited budgets.

Higher cost of .io domains due to tech industry demand - what are io domains used for infographic 4_facts_emoji_nature

Lower Trust and Memorability Scores

While .io domains are gaining popularity, they are still not as widely recognized or trusted as .com domains. According to research, .io has a trust rating of around 3.0 and a memorability score of 28%. This can impact how potential customers perceive your business, especially those unfamiliar with tech industry trends.

Geopolitical Controversy

The geopolitical context of the .io domain adds a layer of complexity. The ongoing sovereignty issues over the Chagos Archipelago, where the British Indian Ocean Territory is located, could affect the future status of the domain. If control shifts to Mauritius, as recent UN rulings suggest, it may lead to changes in the administration or even the availability of .io domains.

In summary, while .io domains offer significant advantages for tech companies and startups, they come with certain challenges. Businesses must weigh these pros and cons carefully when considering whether to adopt a .io domain for their online presence.

Frequently Asked Questions about .io Domains

What are the requirements for registering a .io domain?

Registering a .io domain is straightforward and accessible. There are no specific requirements or restrictions. Individuals, businesses, and organizations can all register a .io domain without needing to prove any connection to the British Indian Ocean Territory. This open policy makes it easy for anyone interested in securing a .io domain to establish their online presence.

How much does it cost to register a .io domain?

The cost of a .io domain varies depending on the registrar and any additional services you might need. On average, the registration fee can reach up to $60 per year. Some registrars, like Hostinger, offer these domains at a lower rate, around $39.99 per year. It's important to compare prices and services across different registrars to find the best deal for your needs.

Can I transfer my .io domain to another registrar?

Yes, you can transfer your .io domain to another registrar if needed. The transfer process typically involves a few key steps:

  1. Open up the Domain: Make sure your domain is not locked for transfer. This can usually be done through your current registrar's control panel.

  2. Obtain an Authorization Code: Also known as an EPP code, this is a unique code you’ll need to authorize the transfer. Request this from your current registrar.

  3. Initiate the Transfer: Start the transfer process with your new registrar. They will guide you through their specific procedures.

  4. Confirm the Transfer: Both your current and new registrars may require you to confirm the transfer. Keep an eye on your email for any instructions.

Some registrars may charge a fee for transferring your domain. Always check their policies to avoid unexpected costs.

Conclusion

As we wrap up our exploration of .io domains, it's clear that they offer a unique blend of tech-savvy appeal and creative potential. For tech startups and innovative businesses, using a .io domain can be a powerful way to stand out in the digital landscape. But the benefits of .io domains go beyond just tech companies; they offer a versatile and modern branding option for any business looking to improve its online presence.

At Refresh, we understand the intricacies of digital marketing and the importance of a strong online identity. Our expertise in Webflow website development, SEO, and branding makes us an ideal partner for businesses aiming to leverage the power of .io domains. We specialize in helping small to medium-sized businesses build a compelling digital presence that resonates with their audience.

Whether you're a startup seeking to capitalize on the tech connotation of .io, or an established business looking to refresh your digital strategy, we're here to support you. Our team is dedicated to providing comprehensive services that include expert Webflow support, ensuring your website is both beautiful and functional.

Choosing the right domain is just one piece of the digital marketing puzzle. With our help, you can steer the complexities of online branding and create a lasting impact. Let's work together to accept the power of .io and drive your business forward.

Contact us at Refresh to learn more about how we can assist you in achieving your digital marketing goals.

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