free-domain-search

name	free-domain-search
description	Check domain name availability

Free Domain Search

Check domain name availability via HTTP probing and WHOIS lookup. No API key required.

Setup

Requires Python 3.10+ and uv. Also requires the whois command line tool.

On macOS:

brew install whois

On Debian/Ubuntu:

sudo apt install whois

Usage

# Check a name across default TLDs (com, net, org, io, dev, app)
uv run {baseDir}/check.py myproject

# Check specific TLDs
uv run {baseDir}/check.py myproject --tlds com io dev

# Check a specific full domain
uv run {baseDir}/check.py myproject.com

Output Format

[+] myproject.dev - AVAILABLE
[-] myproject.com - TAKEN
    Registrar: GoDaddy.com, LLC
    Expires: 2025-08-15
[?] myproject.io - UNKNOWN
    Error: WHOIS lookup timed out

Markers:

• [+] = Available
• [-] = Taken
• [?] = Unknown (check failed)

When to Use

• Brainstorming names for new projects or products
• Checking if a domain is available before purchasing
• Bulk-checking a name across multiple TLDs