iP or domain name lookup

bart035.synology.me Server iP：

Current resolution：

domain resolution record：

2022-03-23-----2022-03-23 106.83.117.251

2022-02-28-----2022-02-28 106.83.115.216

2021-10-21-----2021-10-21 106.83.116.78

2021-10-15-----2021-10-15 106.83.112.211

2021-09-08-----2021-09-08 106.83.112.166

2021-07-30-----2021-07-30 106.83.116.131

2021-07-23-----2021-07-23 106.83.116.79

2020-06-20-----2020-06-20 106.83.117.118