Check-Host 是一种现代在线工具，用于网站监控和检查主机、DNS 记录、IP 地址的可用性。 它支持本地化域名（punycode 和原始格式）、主机名 IPv6 记录（也称为 AAAA 记录）等最新技术。
Check-Host is a modern online tool for website monitoring and checking availability of hosts, DNS records, IP addresses. It supports the latest technologies such as localized domain names (both punycode and original formats), hostname IPv6 records (also known as AAAA record).
