How to resolve blockchain DNS using Python Requests

0 votes

There are certain blockchain domains that are resolved only by blockchain dns resolvers.

For ex: http://Jstash.bazar

If you try to open this link in a browser, it wont get resolved.

But, just install the browser plugin from https://blockchain-dns.info/ and then try to open the site again, it will open up smoothly.

I want to scrap some data from this site using Python Requests (browserless) and have no idea as to how to resolve such blockchain domains. Any help would be highly appreciated.

Aug 17, 2018 in Blockchain by sabby
• 4,370 points
1,848 views

1 answer to this question.

0 votes

You could use one of their publicly available apis to resolve the domain and obtain an ip. You'll find a list of api urls in the Firefox or Chrome addon script, in common.js.
A python example,

import requests
from random import choice

def domain_ip(domain):
    '''Uses bdns api to resolve domain names'''
    domain = domain.split('/')[2] if '://' in domain else domain
    apis = ['https://bdns.co/r/', 'https://bdns.us/r/', 'https://bdns.bz/r/']
    api = choice(apis)
    r = requests.get(api+domain)
    if r.status_code == 200:
        ip = r.text.splitlines()[0]
        print("Domain: {}  IP: {}".format(domain, ip))
        return ip
    else:
        print('HTTP Error: {}'.format(r.status_code))

ip = domain_ip('http://jstash.bazar')
if ip:
    r = requests.get('http://'+ip)
answered Aug 20, 2018 by Omkar
• 69,220 points

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