Cloudflare class to check whether a domain has been added to the service

Cloudflare.py

from CloudflareRequest import CloudflareRequest
from CloudflareDNS import CloudflareDNS

class Cloudflare:
    def __init__(self, host):
        self.host = host
        self.url = 'https://' + self.host
        self.request = CloudflareRequest(self.url)
        self.dns = CloudflareDNS(self.host)
        
    def has_host_cloudflare_http_header(self, headers):    
        return 'Server' in headers and headers['Server'] == 'cloudflare'
    
    def has_host_cloudflare_dns_records(self, response):
        answer = response['Answer']
        has = True
        for record in answer:
            data = record['data']
            needle = 'ns.cloudflare.com'
            
            if not needle in data:
                has = False
        return has
    
    def check(self):
        headers = self.request.send()
        response = self.dns.resolve()
        
        return self.has_host_cloudflare_http_header(headers) or self.has_host_cloudflare_dns_records(response)