Namescope
Try free

.net domain

Tier 1 · Scanned on every plan, free included.

The original infrastructure extension, now a general-purpose fallback. Widely recognised but reads as second choice next to a .com held by someone else.

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 .net

Other extensions