iP or domain name lookup

ddjwd.synology.me Server iP：

Current resolution：

domain resolution record：

2021-08-01-----2021-08-01 61.172.3.250

2021-04-18-----2021-04-18 180.156.138.77

2021-04-01-----2021-04-12 61.165.26.154

2020-11-16-----2020-11-18 180.156.141.189

2020-11-10-----2020-11-12 180.156.168.90

2020-11-07-----2020-11-08 180.156.46.90

2020-07-31-----2020-07-31 116.224.140.157

2020-04-23-----2020-04-23 116.224.142.131

2019-11-19-----2019-11-19 180.162.136.79