Find short removed domains for investment research

Python example: Domain Investors

Requires Python 3.9 or later. Uses the standard library only, processes local files, and makes no network requests. Save the script beside your downloaded inputs, or provide full paths.

Download domain-investors.py

Run the example

python3 domain-investors.py expired.txt.gz --tld com --max-length 8

Results are printed to the terminal. Redirect standard output to a file if you want to save the report. For the SQLite example, the database is saved at the path you specify.

Complete script

import argparse
import csv
import gzip
import sys


def domains(path):
    with gzip.open(path, "rt", encoding="utf-8") as source:
        for line in source:
            domain = line.strip().lower().rstrip(".")
            if domain:
                yield domain

parser = argparse.ArgumentParser(description="Shortlist short removed domain names")
parser.add_argument("file")
parser.add_argument("--tld", default="com")
parser.add_argument("--max-length", type=int, default=8)
args = parser.parse_args()
if args.max_length < 1:
    parser.error("max-length must be positive")
suffix = "." + args.tld.lower().lstrip(".")
writer = csv.writer(sys.stdout)
writer.writerow(["domain", "name_length"])
for domain in domains(args.file):
    if domain.endswith(suffix):
        name = domain[:-len(suffix)]
        if name.isascii() and name.isalpha() and len(name) <= args.max_length:
            writer.writerow([domain, len(name)])

To automate input downloads, follow the API documentation for tokens, supported endpoints, and historical dates. Keep API tokens out of shared scripts.