域名过期了会有什么影响

import whois
import datetime

def check_domain_expiration(domain):
    w = whois.whois(domain)
    expiration_date = w.expiration_date
    if isinstance(expiration_date, list):
        expiration_date = expiration_date[0]
    current_date = datetime.datetime.now()
    days_remaining = (expiration_date - current_date).days
    return days_remaining

domain = "example.com"
days_remaining = check_domain_expiration(domain)
if days_remaining <= 30:
    print(f"域名 {domain} 即将过期，剩余天数: {days_remaining}")
else:
    print(f"域名 {domain} 还有 {days_remaining} 天到期")