Additionally, 1.1.1.1 is blocked on many networks and by multiple ISPs because the simplicity of the address means that it was previously often used inappropriately for testing purposes and not legitimate use.
此外，1.1.1.1被诸多网络及ISP所封禁，因为这一简简单单的IP地址意味着其先前被用于测试目的与非法使用。