112.49.53.251上的网站：
绑定过的域名如下：
2025-06-03-----2025-06-03 cbu01.alicdn.com
2024-07-01-----2024-07-01 down-cdn.dingtalk.com
2019-12-11-----2020-03-09 tbm-auth.alicdn.com
2019-12-29-----2019-12-29 pingjia.alicdn.com
2025-06-03-----2025-06-03 cbu01.alicdn.com
2024-07-01-----2024-07-01 down-cdn.dingtalk.com
2019-12-11-----2020-03-09 tbm-auth.alicdn.com
2019-12-29-----2019-12-29 pingjia.alicdn.com