您还可以编写一个脚本来 ping 每一个，然后检查响应来自谁。某些 DNS 服务器将未注册的域解析为注册商处的停放页面。如果您这样做，只需检查与该 IP 地址是否不匹配即可找到不可用的域。匹配意味着您应该能够注册它。
You can also write a script to ping each of those then check who the response comes from. Some DNS servers resolve unregistered domains to a parking page at a registrar. If yours does that, just check for a mismatch with that IP address to find a domain that is unavailable. A match means you should be able to register it.
A number of whois/dig services are free, though ultimately the mitigating factor is going to be the throttling that you'll encounter with making requests. So long as you limit your queries to a number below the limit set by the provider, you'll do OK.
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有一些命令行工具，例如
whois可以进行检查；我只需编写一个 shell 脚本来做到这一点There are command-line tools like
whoisthat will do the check; I'd just write a shell script to do that您还可以编写一个脚本来 ping 每一个，然后检查响应来自谁。某些 DNS 服务器将未注册的域解析为注册商处的停放页面。如果您这样做，只需检查与该 IP 地址是否不匹配即可找到不可用的域。匹配意味着您应该能够注册它。
You can also write a script to ping each of those then check who the response comes from. Some DNS servers resolve unregistered domains to a parking page at a registrar. If yours does that, just check for a mismatch with that IP address to find a domain that is unavailable. A match means you should be able to register it.
许多 whois/dig 服务都是免费的，但最终缓解因素将是您在发出请求时遇到的限制。只要您将查询数量限制在提供商设置的限制以下，就可以了。
A number of whois/dig services are free, though ultimately the mitigating factor is going to be the throttling that you'll encounter with making requests. So long as you limit your queries to a number below the limit set by the provider, you'll do OK.