iP or domain name lookup

otacon53.synology.me Server iP：

Current resolution：

domain resolution record：

2022-08-29-----2022-08-29 117.25.83.125

2022-06-15-----2022-06-16 121.204.12.90

2022-06-13-----2022-06-13 121.204.13.119

2022-05-20-----2022-05-20 121.204.13.1

2022-05-07-----2022-05-08 117.25.83.93

2022-04-15-----2022-04-27 218.66.10.18

2022-04-01-----2022-04-01 218.66.11.5

2021-12-25-----2021-12-25 218.66.11.158

2021-07-29-----2021-08-04 117.25.82.186

2021-06-21-----2021-06-21 218.66.10.113

2020-11-17-----2020-11-17 103.149.248.44