The internet is changing, and domain names are changing with it.
For decades, extensions such as .com, .net and .org have been fundamental to the traditional web, known as Web2 domains. These extensions are part of the Domain Name System (DNS), which is globally managed by the Internet Corporation for Assigned Names and Numbers (ICANN) and connects human-readable domain names to websites and online services.
But blockchain technology has introduced a different approach to online naming, called Web3 domains.
Although they can look similar to conventional domains, Web3 domains operate differently and can offer functionality that goes beyond simply directing people to a website.
First, what is blockchain?
To understand Web3 domains, it helps to understand the technology behind them.
Blockchain emerged alongside the development of Bitcoin in 2008 to 2009, providing a way to record transactions on a shared digital ledger without relying on a single central authority. Information is recorded across a distributed network and secured using cryptography.
While Bitcoin was the first major application of blockchain technology, the technology quickly expanded beyond digital currency. Platforms such as Ethereum introduced smart contracts, programmable agreements that can automatically execute actions on a blockchain.
This opened the door to decentralised applications, digital assets and, eventually, blockchain-based naming systems.
So where do ‘normal’ domains fit in?
The concept of Web3 domains developed around the idea that names could be recorded and controlled through blockchain networks rather than relying entirely on traditional DNS infrastructure.
What is a Web3 domain?
A Web3 domain is a blockchain-based name that can be used as a digital identity or address within Web3 ecosystems.
One of its key applications is making blockchain addresses easier to use. Cryptocurrency wallet addresses can be long and difficult to remember, whereas a human-readable Web3 domain could offer a simpler alternative.
Depending on the naming system, Web3 domains can also connect with decentralised applications, digital identities, blockchain assets and decentralised websites.
This means a Web3 domain can potentially do more than simply tell a browser where to find a website.
How are Web3 domains different from traditional TLDs?
The biggest difference is how ownership and functionality are managed.
Traditional domain extensions, known as top-level domains (TLDs), are part of the current conventional DNS. Extensions such as .com, .net and .au operate through established registries, registrars and internet governance frameworks such as ICANN.
When you register a traditional domain, you acquire the right to use that particular name for a specified period, subject to the rules of the relevant registry.
Web3 domains can instead use blockchain records and smart contracts to establish ownership and control. Depending on the system, the domain may be associated with a cryptocurrency wallet and represented as a blockchain asset.
Traditional domains
A conventional domain generally:
- Uses traditional DNS infrastructure
- Is registered through a registrar
- Has a defined registration and renewal period
- Directs users to websites and online services
- Operates under the policies of its registry
Web3 domains
A Web3 domain may:
- Use blockchain-based naming technology
- Be controlled through a cryptocurrency wallet
- Provide a human-readable blockchain address
- Connect with decentralised applications
- Function as a digital identity
- Represent a transferable blockchain asset
Not every Web3 domain works in exactly the same way. Different naming systems have different technologies, rules and supported applications.
A Web3 domain isn’t simply another .com
It can be tempting to view a Web3 extension as simply another TLD alongside .com or .net. However, the underlying purpose can be quite different.
Traditional domains are primarily designed to help people navigate the conventional internet.
Web3 naming systems can have a broader role, potentially connecting web addresses, blockchain wallets, digital identities and decentralised applications.
For cryptocurrency users and blockchain businesses, this can make a Web3 domain a useful part of their digital identity.
What about ownership?
Ownership is another important distinction.
With a traditional domain, your registration is recorded by the relevant domain registry and managed through your registrar account. You retain the right to use the domain while the registration remains active and the applicable rules are followed.
Blockchain-based domains can use smart contracts and blockchain records to establish control. In some systems, ownership is linked directly to a user’s blockchain wallet, allowing the domain to be transferred in a manner similar to other blockchain assets.
However, decentralised doesn’t necessarily mean every part of the experience is decentralised. The naming system, resolution technology, marketplaces, wallets and browser support can vary considerably.
Understanding those differences is important before buying a Web3 domain.
Do Web3 domains work in normal browsers?
This is one of the biggest differences between Web3 domains and established extensions such as .com or .au.
Traditional TLDs have widespread support across browsers and internet infrastructure because they operate within the established DNS.
Web3 domains don’t necessarily have universal support in standard browsers. Some may require browser extensions, compatible wallets, Web3 browsers or gateways to resolve correctly.
As the technology develops, greater integration could make Web3 domains easier for mainstream users to access. For now, buyers should check exactly where and how a particular Web3 domain works.
Are Web3 domains worth buying?
It depends on what you want to use one for.
For a conventional business website, an established extension such as .com or .au remains the practical choice because of its familiarity, availability and broad compatibility.
For someone building a blockchain project, using cryptocurrency, developing a decentralised application or establishing a Web3 identity, a blockchain-based domain may provide additional functionality.
There is also potential investment interest in desirable Web3 names, much like premium traditional domains. However, Web3 remains an emerging area, and future adoption is not guaranteed.
The next evolution of domain names?
Web3 domains aren’t necessarily replacing traditional domains. They represent a different approach to naming and digital identity.
Traditional domains help people find websites and online services. Web3 domains can potentially connect identity, wallets, applications and digital assets through blockchain technology.
As these technologies continue to develop, the two systems may increasingly overlap.
For businesses, developers and domain investors, Web3 domains are worth watching, not because traditional TLDs are disappearing, but because the role of a domain name may be expanding beyond the web address we know today.
Frequently Asked Questions
What is a Web3 domain?
A Web3 domain is a blockchain-based name that can be used as a digital identity or address within Web3 ecosystems. Depending on the naming system, it may connect to cryptocurrency wallets, decentralised applications, digital assets or decentralised websites.
How is a Web3 domain different from a normal domain?
Traditional domains such as .com, .com.au, and .au operate via the conventional Domain Name System (DNS) and are registered with domain registrars. Web3 domains can use blockchain technology and smart contracts to record ownership and provide additional functions, such as acting as a human-readable cryptocurrency wallet address.
Can I use a Web3 domain for my normal website?
Not necessarily. Unlike established TLDs such as .com and .com.au, Web3 domains don’t have universal support across standard browsers and internet infrastructure. Some require compatible browsers, extensions, wallets or gateways. If you’re building a conventional business website, an established domain extension will generally provide broader compatibility.
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