域名在线测试源码

import socket
import dns.resolver

def check_domain(domain):
    # DNS解析测试
    try:
        answers = dns.resolver.resolve(domain, 'A')
        print(f"{domain} 解析成功，IP地址为：{answers[0].address}")
    except dns.resolver.NXDOMAIN:
        print(f"{domain} 不存在")
    except dns.resolver.NoAnswer:
        print(f"{domain} 没有A记录")
    except dns.resolver.Timeout:
        print(f"{domain} 解析超时")

    # 网络连通性测试
    try:
        socket.create_connection((domain, 80), timeout=5)
        print(f"{domain} 网络连通性正常")
    except socket.error as e:
        print(f"{domain} 网络连通性异常：{e}")

# 测试域名
check_domain("example.com")