step1. 找一个单词数据库

这里有一个13万个单词的
http://download.csdn.net/detail/u011004567/9675906
新建个mysql数据库words，导入words里面就行

step2.找个查询接口

这里我用的是http://apistore.baidu.com/astore/serviceinfo/27586.html

step3. 执行Python脚本

# -*- coding: utf-8 -*-

'''
域名注册查询
'''

__author__ = 'Jimmy'

from sqlalchemy import Column, String,Integer, create_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy.ext.declarative import declarative_base

import requests
import json
from html.parser import HTMLParser

request_failure = []
domain_available = []

def writeToText(list,fn):
    file = open(fn, 'w')
    file.write(str(list))
    file.close()

class bodyJSON(HTMLParser):
    tag = False
    def handle_starttag(self, tag, attr):
        if tag == 'body':
            self.tag = True

    def handle_endtag(self, tag):
        if tag == 'body':
            self.tag = False

    def handle_data(self, data):
        if self.tag:
            self.data = data

    def getJSON(self):
        return self.data


Base = declarative_base()

class Words(Base):
    # 表的名字:
    __tablename__ = 'words'

    # 表的结构:
    ID = Column(Integer(), primary_key=True)
    word = Column(String(100))
    exchange = Column(String(1000))
    voice = Column(String(1000))
    times = Column(Integer())

# 初始化数据库连接:
engine = create_engine('mysql+mysqlconnector://root:846880@localhost:3306/words')
# 创建DBSession类型:
DBSession = sessionmaker(bind=engine)

# 创建Session:
session = DBSession()
# 创建Query查询，filter是where条件，最后调用one()返回唯一行，如果调用all()则返回所有行:
words = session.query(Words).filter(Words.ID).all()

def searchInaaw8(words):
    length = len(words)
    print('====开始搜索...=====共%d个单词' %length)
    for i in range(0,length):
        word = words[i]
        url = 'http://www.aaw8.com/Api/DomainApi.aspx?domain=%s.com' % word.word
        r = requests.get(url)
        if r.status_code == 200:
            if r.headers['Content-Type'] == 'text/html':
                print('第%s个请求被拒绝,url = %s' % (i, url))
            else:
                body = bodyJSON()
                body.feed(r.text)
                res = json.loads(body.getJSON())
                if res['StateID'] == 210:
                    print('第%d次，%s.com 未被注册' % (i, word.word))
                    domain_available.append(word.word)
                elif res['StateID'] == 0:
                    print('第%d次，%s.com 查询接口出错' % (i, word.word))
                    request_failure.append(word.word)
                elif res['StateID'] == 211:
                    pass
                    print('第%d次，%s.com 已经被注册' % (i, word.word))
                elif res['StateID'] == 213:
                    print('第%d次，%s.com 查询超时' % (i, word.word))
                    request_failure.append(word.word)
                else:
                    print('其他错误')
                    request_failure.append(word.word)
                body.close()
        else:
            print('请求失败')
            request_failure.append(word.word)

    print('查询结束...')
    print('查询失败:')
    print(request_failure)
    writeToText(request_failure,'failure.text')
    print('未注册域名:')
    print(domain_available)
    writeToText(request_failure,'available.text')


searchInaaw8(words)