Namescope
Try free

.com domain

Tier 1 · Scanned on every plan, free included.

The default commercial extension and still the one people type when they guess. A .com match is the strongest signal that a name is taken in practice, even when the trademark is free.

Registry
Verisign

How Namescope checks it

Availability comes from RDAP, the registry's own protocol, not from a reseller's search box. When a registry publishes no RDAP endpoint the report says so and links to the manual lookup instead of guessing.

RDAP lookups on the extensions that matter for the plan, with the registry response quoted in the report.

Check a name on .com

Other extensions