domain-check ☆

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Description:
CLI tool for checking domain availability using RDAP and WHOIS protocols

Type: Formula | Latest Version: 0.6.0@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: domain whois rdap cli networking developer-tools

Install: brew install domain-check

About:
domain-check is a command-line utility that verifies domain name availability by querying RDAP and WHOIS protocols. It provides instant results without requiring registration or login, making it ideal for bulk domain checks. The tool supports multiple TLDs and outputs results in a parseable format.

Key Features:

Supports both RDAP and WHOIS protocols for comprehensive domain checking
No registration or API keys required for basic functionality
Bulk domain checking capability with configurable output formats
Supports multiple top-level domains (TLDs)
Fast, lightweight CLI tool written in Bash

Use Cases:

Domain investors checking availability of potential domain names in bulk
Developers verifying domain availability during project setup
System administrators auditing domain portfolios for renewals
Marketing teams checking brand name availability across TLDs

Alternatives:

whois – Standard whois command provides raw output but lacks bulk checking and structured results
domaintools – Commercial service with API but requires paid subscription vs free CLI tool

License: Apache-2.0

Bottles available for: arm64_tahoe, arm64_sequoia, arm64_sonoma, arm64_ventura, sonoma, ventura, arm64_linux, x86_64_linux

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 5:31am		0	VERSION_BUMP	0d3a7a23