Java检查域是否存在而不使用外部WhoIs服务器

so I need to check a large amount of domains for availability in my program. I tried to use outside WhoIs servers, but they usually rate limit me. Does anyone know of a way to check if the domains are available on the host machine? I thought about doing a DNS lookup but someone could have registered the domain and just put a random DNS that resolves to nothing. Thanks!so I need to check a large amount of domains fo