怎样查询网站域名是否可用

import requests
import json

# 腾讯云API密钥
secret_id = 'YOUR_SECRET_ID'
secret_key = 'YOUR_SECRET_KEY'

# 请求URL
url = 'https://dns.tencentcloudapi.com/'

# 请求参数
params = {
    'Action': 'DomainCheck',
    'Domain': 'example.com'  # 替换为你想要查询的域名
}

# 签名生成
# 这里省略了签名生成的详细步骤，具体可以参考腾讯云官方文档
# https://cloud.tencent.com/document/product/378/4898

headers = {
    'Authorization': 'TC3-HMAC-SHA256 Credential=YOUR_CREDENTIAL/2023-04-14/dns/tc3_request, SignedHeaders=content-type;host;x-tc-action;x-tc-timestamp, Signature=YOUR_SIGNATURE',
    'Content-Type': 'application/json',
    'Host': 'dns.tencentcloudapi.com'
}

response = requests.get(url, headers=headers, params=params)
result = json.loads(response.text)

if result['Response']['Available']:
    print(f"域名 {params['Domain']} 可用")
else:
    print(f"域名 {params['Domain']} 已被注册")