Check a name across popular domain extensions
Seeing one label across several extensions helps separate a strong brand from a single lucky registration. It also reveals defensive registration needs, price differences, and possible confusion.
NameFinder checks supported extensions conservatively and orders available results with estimated pricing. Unknown remains distinct when no trustworthy availability signal is available.
Real RDAP Verification
Every name is verified live against official WHOIS/RDAP registries across .com, .io, .ai, .dev, and .app — no stale, cached guesses.
Multi-Namespace Handles
Check matching social handle availability across GitHub, npm, YouTube, X, and Instagram in one pass alongside your domain search.
Honest Registrar Prices
Transparent wholesale prices directly from Porkbun, Namecheap, and Cloudflare — zero affiliate price markups or registration traps.
Frequently Asked Questions
Which extensions does NameFinder compare?
The broad comparison includes popular options such as .com, .io, .ai, .co, .app, .dev, .net, .org, .xyz, and .tech.
Should I register every available extension?
Usually not. Register the primary domain and only defensive variants with a clear confusion or abuse rationale, since every domain adds renewal and management cost.