[ Strategy ]

Which TLD Should Your Startup Use? A Practical Framework

The TLD decision is permanent in practice — you build brand equity on whatever you pick. Here is how to choose without overthinking it.

· · 6 min read

Which TLD Should Your Startup Use? A Practical Framework

Founders spend too much time agonising over TLD choice and too little time checking what is actually available. The TLD decision matters. But it is a decision with a clear framework, not a creative one.

The default: .com

If the .com version of your brand name is available, register it. Full stop.

.com has the widest recognition, the highest customer trust for transactions, and the lowest friction across every audience demographic. Investors recognise it as the standard. Non-tech customers are most comfortable with it. Enterprise procurement teams expect it.

The case for a non-.com TLD is almost always: "the .com I wanted was not available." That is a legitimate reason, but it is a constraint, not a preference.

If .com is taken

You have two choices: change the name, or pick an alternative TLD.

Changing the name is often the right call. If yourbrandname.com is registered by an active business or a well-funded squatter, you are going to want that .com eventually. The longer you build on a non-.com domain, the more expensive the future migration becomes.

If you decide to use an alternative TLD, the realistic options in 2027 are:

.io — still the default for dev-tools and infrastructure products. The .io TLD has uncertainty around its long-term status (the BIOT sovereignty issue), but it continues to function and is widely recognised in tech. Acceptable for early-stage companies who expect to upgrade to .com after raising a round.

.ai — strong signal for AI-related products. Carries its own association risk: naming an unrelated product with .ai looks like trend-chasing. Use it if AI is genuinely central to what you do.

.co — a generic-feeling .com alternative. Less niche signal than .io or .ai. Works for companies that cannot use .com and do not want a tech-specific TLD.

.app or .dev — Google-operated TLDs with forced HTTPS requirements. App and dev tools fit naturally. Pricing is stable. No geopolitical risk.

What to avoid

Country-code TLDs for a global company. Building on .de or .au when you are not targeting Germany or Australia creates confusion about your market focus.

Obscure new gTLDs (.ninja, .rocks, .guru) — they read as novelty choices, age poorly, and have low recognition outside the internet-native audience.

Hyphenated workarounds (.com was taken so you used your-brand.com). Hyphens create confusion in verbal communication and look desperate in print.

The .com redirect strategy

Some startups launch on .io or .ai and hold the .com version from the start, planning to migrate later. This is fine if you actually own the .com already. Check before you launch: if the .com is available, buy it immediately alongside your chosen TLD even if you are not using it yet.

A BatchDomain check of your brand name across .com, .io, .ai, .co, and .app takes 30 seconds and tells you what is actually available. Run it before committing to any name.

One practical rule

Whatever TLD you choose, own the .com version within 18 months. If that means acquiring it from a squatter, budget for it. If the .com is not acquirable at any reasonable price, factor the long-term migration cost into your decision now rather than discovering it when you raise a Series A.