Among names submitted during Freename's early-access sessions, roughly 70% of founders still choose .com first, even when the exact domain costs $3,000 or more on the aftermarket. That instinct is easy to understand, yet it can push founders toward an inferior name simply to secure the preferred extension. The trade-off deserves a closer look.
Since the first major wave of new extensions arrived in 2013, the TLD landscape has shifted considerably. Some now carry clear audience associations, while others have lost relevance. A handful have built considerable trust within particular niches. This is not an argument against .com. It is a reminder to understand the message each extension sends before choosing one.
Why .com Retains Its Trust Advantage
.com's trust benefit is genuine, though it varies by audience. In B2C settings, especially those involving payments or personal information, users are more wary of non-.com domains. Usability research has repeatedly found that when people enter a brand into the browser bar without following a link prompt, they tend to try .com first. If your site uses another extension, some visitors may reach the wrong page before finding you.
The difference is smaller in B2B SaaS. People assessing software usually focus much more on the product, pricing page, and team than on the TLD in the URL. A CTO reviewing a developer product at a .io address is unlikely to worry about the extension.
The straightforward view is this: .com has the widest trust across audiences. If a clean .com matching your brand is available without a premium, taking it is usually sensible. The question becomes more nuanced when that option is unavailable at a price you can reasonably pay.
.io: A Clear but Narrower Signal
From around 2013 onward, .io became the default choice for developer tools, developer-oriented APIs, and technical SaaS. For years, it effectively communicated, "this is for technical people." That meaning remains, but it is less concentrated now. Consumer apps, crypto projects, and marketing products have filled the .io space, so a technical interpretation is no longer guaranteed.
For a mainly developer or technical audience, .io remains entirely ordinary. It is unlikely to raise questions or cause confusion. Its main practical drawback is cost: in most registrar arrangements, .io renewals run $30 to $50 per year, compared with $10 to $15 for .com.
A less obvious .io issue is availability. Heavy use in the technology sector means many names that remain clean under .com are already registered under .io. Checking both extensions together can save time when you are investigating .io options.
.ai: A Focused Signal with Baggage
.ai is Anguilla's country code TLD, but in recent years it has taken on another meaning. For products connected to AI, it communicates a clear niche relationship. When AI is genuinely central to the product, a .ai address accurately tells people something about what you offer.
The difficulty is that .ai is increasingly used as a promotional cue rather than a precise description. Some .ai products make little practical use of AI, weakening the signal for everyone. Audiences familiar with this pattern often assign .ai about the same trust as .io for technical products: acceptable for B2B and somewhat unusual for B2C.
At $60 to $80 per year, .ai renewals are among the costliest of the widely used extensions. For a truly AI-focused product, the signaling benefit may warrant that expense. Choosing .ai only because .com was costly and .io seemed too broad is a less convincing case.
.co, .app, and .net: The Middle Ground
.co is Colombia's country code, though it has also been promoted worldwide as a short form of company. It is concise, clean, and widely understood. Its trust level sits below .com but above many other alternatives. Several recognizable businesses have established substantial .co brands without apparent harm. It is most effective when the name is strong enough for the extension to recede into the background.
Google Registry introduced .app in 2018. Its purpose is fairly specific, covering mobile apps and products closely related to apps. For a mobile app or a product with a substantial app element, .app is a logical fit. It also carries a small technical distinction: .app requires HTTPS by default because it appears on the browser preload HSTS list, enforcing a security practice that is beneficial in any case.
.net dates back to the early internet and still suggests internet infrastructure firms and ISPs to some people. It is not inherently damaging for a startup, but it does not convey anything particularly current. Unless the name and brand are strong enough to make the extension barely noticeable, most founders should assess .io, .co, or .ai first.
Choosing the Right Extension
We assess names and domain choices with three questions. First, who is the main audience, and how technically knowledgeable is it? Developer-focused groups are generally comfortable with .io and .ai, while broad consumer audiences usually prefer .com. Second, can you obtain the .com for your chosen name at a price you would truly pay? It must be reachable within the next 30 days, not merely desirable in theory. Third, if you choose another extension, is the .com being held, and could its owner create meaningful brand confusion?
The third point is easy to underestimate. Suppose your product is called "Loopdesk" and uses loopdesk.io, while loopdesk.com is parked or belongs to an unrelated company. Some of the brand value you create may then benefit someone else's asset. That does not rule out .io, but it does make advance research important.
Non-.com does not automatically mean lower quality. The real issue is whether the choice receives the same careful consideration as any other brand architecture decision. Your audience experiences the extension as part of the name, so selecting one by habit or elimination can lead to a poorer result than choosing deliberately.
Check Availability Across TLDs
Reviewing names and domains together also shows that availability is not simply yes or no. One name string may be open on .io and .co, unavailable on .com at $5,000 aftermarket, and held on .ai by an inactive project that last published in 2022. Those circumstances require different next steps.
When Freename creates name candidates, it checks availability across ten TLDs simultaneously: .com, .io, .co, .app, .ai, .net, .org, .xyz, .dev, and .co. This does not determine which TLD you should select. It gives you the complete view before you become attached to a name that is technically open but difficult to secure in practice.
One founder building a developer observability tool explained that they arrived with three preferred candidates, each with a .com listed above $2,000. The complete availability view showed that two had clean .io alternatives. They chose the candidate with both .io and .com available, then obtained the .com three months later, after the renewal expired and the price returned to registration cost.
This result is not assured, but it is a legitimate approach. It depends on understanding what is actually available rather than what you hope to find. Begin with the complete picture, then decide.