iP or domain name lookup

pingcap.com Server iP：

Current resolution：

domain resolution record：

2022-09-14-----2025-01-06 106.75.16.204

2022-09-14-----2025-01-06 13.248.147.106

2023-01-16-----2025-01-06 76.223.32.38

2020-03-26-----2022-08-30 117.50.106.178

2020-03-26-----2022-08-30 107.150.104.61

2019-04-08-----2020-01-12 52.53.190.167

2020-01-06-----2020-01-12 52.53.198.127

2017-06-13-----2019-08-14 115.28.183.167