How to Choose a Domain Name for Your Startup

Your domain name is the first thing people type, remember, and judge you by. Get it wrong and you're correcting people's spelling for years. Get it right and it becomes one of your most valuable brand assets. This guide walks through every factor that matters — in the order it matters.

Start with the .com

There are hundreds of TLD options available today. You will be tempted by .io, .ai, .co, .app, and dozens of others. Resist the temptation until you have exhausted your .com options. The .com extension is still the dominant TLD by consumer trust, direct type-in traffic, and global brand recognition. When you hand someone a business card with a .co domain, roughly 40% of them will type .com anyway and land on someone else's site — or nowhere at all.

That said, there are legitimate exceptions. If you are building a developer tool and every .com variation of your name is taken, .io is a widely accepted alternative in tech circles. If your product is explicitly AI-focused, .ai carries real signal. But the default question should always be: can I get the .com?

Keep it short — ideally under 12 characters

Short domain names are easier to remember, faster to type, and harder to misspell. The sweet spot is 6–12 characters in the base name (not counting the TLD). Under 8 is excellent. Over 15 is a red flag.

Count the characters in some of the most recognised brand domains: stripe.com (6), notion.so base is notion (6), linear.app base is linear (6), vercel.com (6). These names are short enough to say aloud in a noisy room and be understood without repetition. That clarity is not a coincidence — it is a deliberate competitive advantage.

Avoid hyphens and numbers

Hyphens in domain names are a classic signal of a brand that could not get its first choice. They create ambiguity when spoken aloud ("is that with a hyphen or without?") and are genuinely hard to remember. Numbers create similar problems — is it the digit "4" or the word "four"? Unless numbers are intrinsic to your brand identity, avoid them.

Make it pronounceable

If you cannot say your domain name clearly over a phone call and have the other person spell it back correctly, it will cost you customers. This rules out most consonant clusters, ambiguous vowel combinations (is it "ee-ah" or "eye-ah"?), and words borrowed from other languages that English speakers will mispronounce.

The test: say your domain to five people without showing it to them, then ask them to type it. If even one person gets it wrong, you have a problem worth solving before you invest in that name.

Avoid trademark conflicts

Before you register any domain, run the name through a basic trademark search. Getting too close to an existing registered trademark — especially in the same industry — can expose you to cease-and-desist letters, legal fees, and the loss of a domain you have already built brand equity on. Use the USPTO TESS database (US) or EUIPO (Europe) for initial checks. If the name is close to an existing mark, pay a lawyer $200 for a proper clearance opinion before you build on it.

Match your name to your keyword — but not too literally

There is a spectrum between exact-match domain names (buyrunningshoes.com) and purely invented brand names (nike.com). In the modern web, exact-match domains carry far less SEO benefit than they did in 2010. Google has largely neutralised the keyword-stuffed domain advantage. What matters far more is brand recall and trust.

A good domain name sits in the middle of that spectrum: it evokes your category without literally describing it. "Stripe" evokes payment processing without saying "payments." "Notion" evokes ideas and structure without saying "notes app." "Figma" evokes design through phonetics without saying the word "design." Aim for that kind of association — present in the sound and feel of the name, not necessarily in its dictionary definition.

Check social handle availability

Before you commit to a domain, check that the matching username is available on the platforms your audience uses. Inconsistent handles across X, Instagram, LinkedIn, and YouTube fragment your brand signal. Tools like Namechk can sweep multiple platforms at once. You do not need an exact match on every platform, but you should be able to secure something close enough that users can find you intuitively.

Use a domain generator — then check live availability

Most people approach domain search backwards: they think of a name, check if it is taken, find out it is, feel deflated, and repeat. A better approach is to use a domain name generator with a keyword that describes your product or category and let it surface hundreds of available candidates you would never have thought of manually.

SharpDomainSearch works exactly this way. Enter a keyword, and it generates combinations using proven naming patterns — prefixes, suffixes, compound words, portmanteau constructions — and checks live availability against the registry. You see only names you can actually register, right now, at standard price. It is a faster path to shortlisting your options than any manual search process.

The shortlist test

Once you have a shortlist of 3–5 available names, run them through this quick evaluation before committing:

• Spell test: Say it aloud, have someone else spell it back
• Memory test: Tell three people the name; ask them to recall it 10 minutes later
• Google test: Search the name; is there anything confusing or conflicting in the results?
• Trademark test: Quick TESS search for conflicts in your industry class
• Social test: Are usable handles available on your key platforms?

A name that passes all five is worth registering. A name that fails two or more is not worth the brand debt it will create.

Register it as soon as you decide

Domain availability changes in real time. A name that is available when you check it can be registered by someone else — or by a domain squatter running availability scrapers — within hours. Once you have decided on your name, register it immediately. At $10–15 per year, a .com domain is one of the cheapest brand assets you can own.