iP or domain name lookup

auth.mama.cn Server iP：

Current resolution：

domain resolution record：

2025-01-13-----2025-09-18 81.70.127.44

2022-04-17-----2022-04-17 43.227.197.92

2017-12-12-----2020-07-23 101.251.205.205

2017-12-12-----2017-12-12 221.179.215.83

2017-03-30-----2017-09-03 221.179.215.82

2017-03-30-----2017-09-03 101.251.205.206