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Namechk

Web-based username and domain availability checker that searches 100+ social media platforms and 36 domain extensions simultaneously.

username
Official docs ↗

Platforms: Web · Last verified September 7, 2026

Web-based username and domain availability checker that searches 100+ social media platforms and 36 domain extensions simultaneously.

Only use this tool against systems you own or are explicitly authorized to test — see the disclaimer.

Getting started

Best for: Quick username availability check across social media and domains. See the official site linked above for details.