tk域名解析很慢

import dns.resolver
import time

def check_dns_resolution_speed(domain):
    start_time = time.time()
    try:
        answers = dns.resolver.resolve(domain, 'A')
        end_time = time.time()
        resolution_time = end_time - start_time
        print(f"Domain: {domain}")
        print(f"IP Address: {answers[0].address}")
        print(f"Resolution Time: {resolution_time} seconds")
    except dns.resolver.NXDOMAIN:
        print(f"Domain {domain} does not exist.")
    except dns.resolver.NoAnswer:
        print(f"Domain {domain} has no A records.")
    except dns.resolver.Timeout:
        print(f"DNS resolution for {domain} timed out.")

# 示例使用
check_dns_resolution_speed('example.com')