DNS(Domain Name System,域名系统)解析是指将人类易于记忆的域名转换为计算机能够识别的IP地址的过程。检测DNS解析域名的速度通常是为了评估网络性能和用户体验。
ipconfig /flushdns
(Windows)或sudo systemd-resolve --flush-caches
(Linux)。import dns.resolver
import time
def dns_lookup(domain):
start_time = time.time()
try:
answers = dns.resolver.resolve(domain, 'A')
end_time = time.time()
return end_time - start_time
except dns.resolver.NXDOMAIN:
return "Domain does not exist"
except dns.resolver.NoAnswer:
return "No answer"
except dns.resolver.Timeout:
return "Timeout"
domain = "example.com"
result = dns_lookup(domain)
print(f"DNS lookup time for {domain}: {result} seconds")
通过以上信息,您可以更好地理解DNS解析速度的相关概念,并解决常见的DNS解析问题。
领取专属 10元无门槛券
手把手带您无忧上云