DomainsCheck

A fast, clean WHOIS-based domain availability checker that reads a list of domains, prints a polished result table in the terminal, and writes available domains to a file.

Features

• Async WHOIS lookups for speed
• Clean, colored terminal output with status icons
• Writes a plain text list of available domains
• No external dependencies

Quick Start

python check_domains.py domains.txt -o available.txt

Input File

• One domain per line
• Comments with # are ignored
• URLs are accepted and cleaned (http/https and paths are removed)
• Blank lines are ignored

Output File

• available.txt contains only available domains, one per line

Options

python check_domains.py domains.txt -o available.txt -c 12 -t 10

• -c, --concurrency number of concurrent WHOIS queries
• -t, --timeout timeout per WHOIS query (seconds)
• --no-color disable ANSI colors

Notes

WHOIS servers can rate-limit or drop connections if you query too fast. If you see UNKNOWN results, lower concurrency and increase timeout.