怎么查询域名是在哪备案的

import requests
from bs4 import BeautifulSoup

def query_icp_info(domain):
    url = f"http://www.miitbeian.gov.cn/publish/query/indexFirst.action"
    params = {
        'domain': domain,
        'key': ''
    }
    response = requests.get(url, params=params)
    if response.status_code == 200:
        soup = BeautifulSoup(response.text, 'html.parser')
        # 解析备案信息
        icp_info = soup.find('div', class_='result')
        if icp_info:
            return icp_info.text.strip()
        else:
            return "未找到备案信息"
    else:
        return "查询失败"

# 示例查询
domain = "example.com"
print(query_icp_info(domain))