There are now over 1,500 domain extensions available. You can register .pizza, .beer, .fail, and .wtf alongside the useful ones.
Most of them are not worth buying. A handful are genuinely valuable. And a few have become so established in specific industries that not using them makes your brand look behind the times.
This guide cuts through the noise and gives you an honest answer on which alternative extensions are worth your money and which are a waste of it.
What New gTLDs Are
gTLD stands for generic Top Level Domain. It is the part of your domain after the final dot.
The original gTLDs were the familiar ones: .com, .net, .org, .edu, .gov, .mil. These existed for decades as the only options beyond country-specific extensions like .co.uk or .de.
In 2011, ICANN approved a massive expansion of the domain extension system. Starting in 2013, new gTLDs began launching. Today there are over 1,500 of them.
Some were created for specific industries. Some for geographic communities. Some were bought by companies for their own brand use. And many were created speculatively by registries hoping to sell large volumes of domains.
The result is a chaotic marketplace where a few extensions have become genuinely useful and hundreds more exist primarily to give registrars something to sell.
The .com Question
Before discussing alternatives, let us be honest about .com.
.com is still the default assumption most people have when they hear a brand name. If someone hears your brand name spoken aloud, they will type yourbrand.com before they try yourbrand.io or yourbrand.store. That direct navigation habit is deeply embedded.
This does not mean .com is the only acceptable choice. But it does mean that if your .com is available and affordable, buying it should be your first decision. Everything else is a second choice or an addition.
If your .com is taken and the owner wants a price you cannot justify, the question becomes which alternative is the least painful compromise for your specific situation.
Read our guide on how to choose the perfect domain name and our overview of domain extensions explained for the broader context before choosing any extension.
My opinion: anyone who tells you that alternative extensions are just as good as .com for building brand recognition is selling something. They are viable. They are not equivalent. Choose them deliberately, not because someone convinced you .com does not matter.
Extensions That Are Genuinely Worth Buying
.io
Originally the country code for the British Indian Ocean Territory, .io has been adopted so broadly by the tech industry that it now functions as a genuine gTLD for software products, SaaS tools, and developer-focused brands.
Worth it if: you are building a tech product, SaaS application, or developer tool and your .com is not available or affordable.
Not worth it if: your audience is non-technical. Many people outside the tech industry do not recognise .io and will try to add .com by instinct.
Renewal pricing: .io domains typically renew at $30 to $50 per year. Budget for that before registering.
.co
.co started as the country code for Colombia and was opened for general registration in 2010. It is now widely recognised as a .com alternative for startups and businesses.
Worth it if: your brand name is memorable and .com is taken. .co is short, familiar, and carries no confusing connotation. Many well-known brands use it intentionally.
Watch out for: .co.uk is a completely separate extension used for UK businesses. If your audience is UK-based, .co will cause confusion.
.ai
.ai is the country code for Anguilla. It has been adopted almost universally by artificial intelligence companies and products. In the current AI landscape, .ai has become a meaningful industry signal.
Worth it if: your product or company is genuinely in the AI space. The extension communicates industry relevance immediately.
Not worth it if: your business is not AI-related. Using .ai for an unrelated business looks like trend-chasing rather than intentional branding.
Renewal pricing: .ai domains are among the most expensive, often renewing at $70 to $100 per year.
.app
.app is a Google-owned extension specifically for apps and mobile products. It requires HTTPS by default at the registry level, meaning every .app domain must have a valid SSL certificate. That is enforced at the infrastructure level, not just recommended.
Worth it if: you are launching a mobile or web application and want an extension that signals exactly what you are.
Renewal pricing: typically $15 to $25 per year.
.dev
Also Google-owned, .dev is used by developers and developer-focused products. Like .app, it requires HTTPS by default.
Worth it if: you are a developer, a development agency, or building tools for developers.
Renewal pricing: typically $12 to $20 per year.
.design and .studio
These extensions have seen genuine adoption in the creative industry. Designers, architects, agencies, and creative studios use them to signal their field immediately.
Worth it if: your business is in the creative or design space and the extension matches your actual work.
Not worth it if: you are a general business using it to sound creative.
.shop and .store
These e-commerce extensions have seen significant adoption. They communicate immediately that a domain is an online store. Search engines treat them like any other gTLD.
Worth it if: you are running an e-commerce operation and your .com is not available.
Watch out for: these extensions attracted significant spam and low-quality sites in their early years. The reputation of the extension is recovering but some email filters and security tools still flag them with slightly higher scrutiny.
.org
Not a new gTLD but worth including because it remains a strong choice. .org carries a strong association with non-profit and community organisations. Using it for a commercial business creates a mismatch that users notice.
Worth it if: you are a non-profit, a community project, an open-source initiative, or a professional association.
Extensions Worth Avoiding
Most New gTLDs Below a Few Million Registered Domains
The extension market works on network effects. An extension that has been adopted by hundreds of thousands of websites builds familiarity. An extension with a few thousand registrations is essentially unknown.
Users who encounter an unfamiliar extension often treat it with suspicion. Email recipients may mark messages from unfamiliar extensions as spam. Some security tools flag low-volume extensions automatically.
Before registering any extension, check its total registration volume. nTLDStats tracks registration counts for new gTLDs. Extensions with very low registration counts carry reputational risk.
Extensions With Histories of Spam Abuse
Some extensions became popular with low-quality site operators and spammers early in their existence. That reputation lingers in spam filters and user perception even after the registry attempts to clean up.
Look up the extension in the Spamhaus Domain Block List before registering. Extensions that appear there regularly face deliverability challenges.
Extensions With Deceptive First-Year Pricing
Many new gTLD registries attract registrations with very low first-year promotional pricing, sometimes under a dollar. Renewal prices can be dramatically higher.
This is not an extension quality problem exactly. It is a pricing transparency problem that affects specific extensions more than others. Always check the renewal price, not just the registration price, before committing to any domain.
SEO and New gTLDs
Google has stated clearly that new gTLDs receive no inherent SEO advantage or disadvantage compared to .com. A well-built site on .io will rank just as well as an equivalent site on .com given equal content, links, and technical quality.
What does affect SEO indirectly:
- User trust and click-through rate from search results: familiar extensions get slightly higher click-through rates because users trust them more
- Link building: some webmasters are less likely to link to unfamiliar extensions, which can affect domain authority over time
- Brand search volume: if users default to typing .com when searching for your brand, direct navigation traffic goes to a domain you may not own
The extension itself is not a ranking factor. The behaviours it influences can be.
My opinion: do not choose a domain extension based on SEO claims in either direction. Choose it based on whether your target audience will trust it and remember it.
The Renewal Pricing Trap With New gTLDs
This deserves its own section because it catches a lot of people.
New gTLD pricing is often tiered:
- First-year registration: heavily discounted, sometimes under a dollar
- Standard renewal: significantly higher, often $15 to $100 or more per year depending on the extension
Extensions like .io, .ai, and .app carry higher renewal costs than .com by a significant margin. If you register a .ai domain at $5 for the first year and discover the renewal is $80, you either pay it or go through the disruption of moving to a different domain.
Always check the renewal price before registering. Namecheap and Porkbun both show renewal pricing clearly alongside registration pricing, which makes them easier to compare honestly than registrars that bury renewal rates.
The Defensive Registration Question
Should you register multiple extensions of your domain to protect your brand?
For most small businesses and startups, the answer is no. The cost of registering and renewing a domain across .com, .io, .co, .net, and .org adds up quickly and protects against a problem that is unlikely to materialise for most brands.
For established brands with meaningful recognition, defensive registration of your primary domain across a handful of extensions makes sense. Primarily .com, your country code if you operate locally, and any extension where you have seen active confusion or impersonation.
Read about domain name disputes and why your domain name matters more than most businesses realise before deciding how much defensive registration is worth for your situation.
Summary: Extensions Worth Considering vs Worth Skipping
| Extension | Worth Buying? | Best For | Renewal Cost Range |
|---|---|---|---|
| .com | Yes, always first choice | Everything | $10 to $15 per year |
| .co | Yes | Startups, .com alternatives | $25 to $30 per year |
| .io | Yes for tech | SaaS, developer tools | $30 to $50 per year |
| .ai | Yes for AI | AI products and companies | $70 to $100 per year |
| .app | Yes for apps | Mobile and web apps | $15 to $25 per year |
| .dev | Yes for developers | Developer tools and agencies | $12 to $20 per year |
| .design / .studio | Situationally | Creative businesses | $25 to $40 per year |
| .shop / .store | Situationally | E-commerce | $25 to $40 per year |
| .org | Yes for non-profits | Non-profits, communities | $10 to $15 per year |
| Low-volume new gTLDs | No | Nothing, avoid | Varies |
| Extensions with spam history | No | Nothing, avoid | Varies |
Final Thoughts
Most new gTLDs are not worth buying. A small number have built enough recognition in specific industries that they are legitimate alternatives to .com for the right business.
The decision comes down to three questions.
Will your target audience recognise and trust this extension? Will you remember to budget for what renewal actually costs, not what registration cost? And does the extension match what your business actually does, or does it just sound interesting?
If the answers are yes, yes, and yes, the extension is worth considering. If any answer is no, .com or your country code extension is almost certainly the better choice.



