pool.py

'''
This script downloads the latest list of domains available
for backorder at https://www.pool.com/viewlist.aspx and
checks for really short domains or dictionary words.

More info at https://jell.com/blog/how-the-wrong-name-cost-our-startup/
'''

import io
import requests
import zipfile

domain_zip_url  = 'https://www.pool.com/Downloads/PoolDeletingDomainsList.zip'
domain_file     = 'PoolDeletingDomainsList.txt'
dictionary_file = '/usr/share/dict/words'

# Grab the zip file and iterate over the domains
domains = []
request = requests.get(domain_zip_url)
with zipfile.ZipFile(io.BytesIO(request.content)) as z:
    with z.open(domain_file) as f:
        for line in f:

            # Get the domain name
            domain = line.split(',', 1)[0].lower()

            # Only look at .com domains
            if not domain.endswith('.com'):
                continue

            # Get the word in the domain
            word = domain.split('.', 1)[0]

            # Only look at reasonable length words
            if len(word) > 8:
                continue

            # Throw away some common prefixes and suffixes
            if word.startswith(('get', 'try', 'use')) or word.endswith(('app', 'hq')):
                continue

            # Match any short domains, regardless of dictionary
            if len(word) <= 4:
                print word
            else:
                domains.append(word)

# Iterate over the dictionary looking for good matches
with open(dictionary_file) as f:
    for line in f:
        word = line.rstrip().lower()
        if word in domains:
            print word