iP or domain name lookup

qa.atmarkit.co.jp Server iP：

Current resolution：

domain resolution record：

2023-02-18-----2023-02-18 54.248.191.19

2023-02-18-----2023-02-18 52.199.250.108

2023-01-27-----2023-01-27 52.198.187.19

2023-01-27-----2023-01-27 3.113.174.254

2023-01-16-----2023-01-16 18.178.23.100

2023-01-16-----2023-01-16 52.196.29.232

2022-09-17-----2022-09-17 54.150.178.58

2022-09-17-----2022-09-17 54.65.10.201

2018-03-04-----2019-07-16 54.250.123.200