Question

Is there any way how to improve scripts verification speed? Or there is another (not a sw) solution?

I tried something like this (but its slow and useless):

import urllib
from socket import * 
import string, re

strings = string.ascii_lowercase
digits = string.digits

def validate(url):
    try:
        targetIP = gethostbyname(url)
        print url,' - Registered - ', targetIP
    except:
        print url," - Free"

def generate(url):

    for x in strings:      
        url_mod = "www."+ x + url
        validate(url_mod)

generate("atrion.com")

Answer 1

Your speed problem comes from looking up the domain in the DNS, not from Python.

I would try configuring my system to use a different DNS server, like the Google Public DNS. Note that this is a system-level configuration, not a Python configuration. You can find a link to configuration instructions on that page.

Note also that if you are making a lot of such queries, Google might interpret it as a denial-of-service attack and cut you off. Just FYI.