iP or domain name lookup

so.niostack.com Server iP：

Current resolution：

domain resolution record：

2024-02-18-----2024-04-15 154.197.99.171

2023-11-15-----2023-12-07 154.197.98.63

2023-04-12-----2023-10-23 172.67.145.7

2023-04-12-----2023-10-23 104.21.81.164

2023-02-09-----2023-02-27 45.204.71.55

2022-01-21-----2022-07-20 45.195.149.80

2021-07-23-----2021-10-24 185.114.227.108

2021-03-15-----2021-07-12 213.190.21.233

2020-06-05-----2020-12-01 185.171.0.55

2019-11-23-----2020-03-21 104.27.131.82

2019-11-23-----2020-03-21 104.27.130.82