Buying a startup domain is part naming, part risk management. A good name makes fundraising, hiring, and customer conversations easier. A bad one creates drag every time someone types it.
1. Say it out loud
If a customer hears the name once, can they spell it? Short coined names can work, but only if they are pronounceable. Avoid names that require a long explanation.
2. Check the extension fit
.com is strongest for broad company identity. .ai fits AI and data products. .io fits developer tools. .co fits startups and commerce. The wrong extension can make a good root feel less serious.
3. Search for trademark conflicts
Do a basic trademark check before paying. Search the exact name and obvious variants. If an active mark exists in the same business category, the domain may carry legal risk.
4. Think about future redirects
If matching extensions are available, decide whether they matter now. Defensive redirects are not always necessary, but they can prevent leakage when the brand gets attention.
5. Confirm the transfer process
Ask how the seller transfers the domain, which registrar they use, and whether Escrow.com or invoice payment is available. The transaction path should be clear before money moves.
6. Keep the name flexible
The best startup domain can survive a product pivot. Do not buy a name that only fits one feature unless that feature is the company.