This error indicates that the host could not be found. - The Cloudflare domain was recently activated and there is a delay propagating the domain's settings to the Cloudflare edge network. - The Cloudflare domain was created via a Cloudflare partner (for example, a hosting provider) and the provider's DNS failed.
修改记录:Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions. 译文说明已标注为自动翻译。