How to Check a Trademark Before You Buy a Domain
Last updated: 12 October 2026
The short version. A free domain is not a free name. Spend fifteen minutes in the public trademark databases for your markets before you register anything. Search the exact name and the way it sounds, in the classes that match your product. If you find a live mark in your class and market, choose another name. This page is practical guidance, not legal advice.
Why the domain check is not enough
Domains are first come, first served. Trademarks are about confusion: if customers could mistake your product for someone else's, the earlier mark wins even if you own the .com. Trademark holders routinely recover domains through UDRP proceedings and force renames after launch, when a rename is most expensive. The check is quick; skipping it is the gamble.
Where to search (free)
- TMview (EUIPO) covers EU and many national registers in one search. We link to it from every name card.
- USPTO TESS / Trademark Search for the United States.
- WIPO Global Brand Database for international registrations.
- Your national office if it is not in TMview (for Romania it is OSIM, which TMview includes).
What to search
Search the exact name first, then variations that sound the same (Lyft/Lift, Flickr/Flicker), then the name with your category word removed or added. Many databases support phonetic or fuzzy search; use it. Look at live marks only; expired or refused ones are not an obstacle, but a very recent application is.
Which classes matter
Trademarks are registered per class of goods and services. A conflict in an unrelated class is usually fine (Delta airline, Delta faucets). Common classes: 9 (software, apps), 42 (SaaS and IT services), 35 (advertising, retail, business services), 25 (clothing), 3 (cosmetics), 41 (education, entertainment), 36 (finance), 44 (health services), 43 (food and drink). Search your main class and the adjacent ones.
What counts as a conflict
An identical or confusingly similar mark, in the same or a related class, in a market where you will sell. "Confusingly similar" is judged on sight, sound and meaning, so a different spelling of the same sound is still a conflict. A famous mark is protected across classes even if yours is unrelated; do not name a software product after a well-known car.
When to call a lawyer
When you find something close but not identical and you are not sure; when you plan to raise money or sell internationally; and before you file your own application. A one-hour consultation is cheap compared with a rename. Many founders file their own trademark for the home market and use a lawyer for the first expansion.
After the check
If the name is clear, register the domain and handles the same day, and consider filing a trademark application within the first months; priority goes to whoever files first, not whoever used it first, in most of Europe.
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