iP or domain name lookup

ws.mycourse.cn Server iP：

Current resolution：

domain resolution record：

2025-02-21-----2025-09-05 111.132.43.41

2025-02-21-----2025-09-05 111.180.137.21

2025-02-21-----2025-09-05 116.179.52.16

2025-02-21-----2025-09-05 58.220.72.7

2025-02-21-----2025-09-05 117.91.199.23

2025-02-21-----2025-09-05 220.164.107.69

2025-09-05-----2025-09-05 111.45.68.96

2025-09-05-----2025-09-05 115.223.48.19

2025-09-05-----2025-09-05 125.39.174.24

2025-09-05-----2025-09-05 180.163.117.165

2025-09-05-----2025-09-05 58.242.249.143

2025-09-05-----2025-09-05 113.142.189.21

2025-09-05-----2025-09-05 103.254.189.164

2025-09-05-----2025-09-05 1.194.195.18

2025-09-05-----2025-09-05 220.177.176.9

2025-09-05-----2025-09-05 111.132.43.57

2025-02-21-----2025-02-21 60.5.255.18

2025-02-21-----2025-02-21 101.96.148.88

2025-02-21-----2025-02-21 42.243.148.13

2025-02-21-----2025-02-21 36.156.173.69

2025-02-21-----2025-02-21 111.161.122.2

2025-02-21-----2025-02-21 123.126.74.10

2025-02-21-----2025-02-21 117.144.98.164

2025-02-21-----2025-02-21 1.180.239.29

2025-02-21-----2025-02-21 111.180.138.102

2025-02-21-----2025-02-21 116.196.137.78

2025-02-21-----2025-02-21 222.180.166.37

2025-02-21-----2025-02-21 61.164.116.48