Check names while you brainstorm
Availability matters before a name becomes a favorite. Lobby combines naming and checking so unavailable ideas do not dominate the shortlist.
Availability checker
Domain availability checker for app names
A useful domain checker should help you compare realistic options while the naming idea is still fresh. Lobby generates app-focused labels, then checks selected extensions with RDAP.
Compare extensions side by side
A strong .app or .io can beat a weak .com. Checking multiple TLDs together makes the tradeoff clearer.
Use RDAP where registry data is available
RDAP gives structured registration data, helping Lobby mark domains as available, taken, or unable to verify instead of hiding uncertainty.
Frequently asked questions
Can a domain availability checker guarantee a domain is available?
No checker can replace the final registrar checkout, but RDAP checks give a strong early signal before you build a shortlist.
Why check multiple extensions at once?
App names often have several credible domain paths. Comparing extensions early helps avoid settling for a weak label on a familiar TLD.