A free handle isn’t the same as a free name.
NameCheckr is a quick way to see if a handle is open across the big platforms. That answers availability — but not the one question that can actually stop you: is the name someone’s trademark?
NameCheckr checks whether a username and domain are available across social platforms. It doesn’t check trademarks or common-law use, and it doesn’t issue a verdict you can keep. Pentonym runs the handle check plus the US trademark and web-use checks, and returns a signed verdict.
Availability answers “can I sign up?” — not “can I own it?”
NameCheckr is good at
- A fast look across social handles
- A quick domain glance alongside
- A simple, free first pass
An open handle on every platform is worth nothing if the name belongs to someone else as a trademark. Pentonym keeps the handle scan you came for and adds the checks that decide whether the name is defensible — then hands you a receipt you can verify.
Common questions
Does NameCheckr check trademarks?
No. It checks username and domain availability. A trademark and common-law check is separate — that’s the part Pentonym adds.
Does Pentonym also check handles?
Yes — GitHub, X, npm, PyPI, YouTube and more, alongside the trademark, domain, web-use and cultural axes, in one signed verdict.