iP or domain name lookup

2.dk.pool.ntp.org Server iP：

Current resolution：

domain resolution record：

2020-06-22-----2023-06-27 91.210.59.156

2020-06-22-----2023-06-27 162.159.200.123

2023-06-27-----2023-06-27 213.5.39.34

2020-06-22-----2021-01-21 162.159.200.1

2020-06-22-----2021-01-21 77.68.139.83

2020-06-22-----2021-01-21 192.36.143.130

2020-06-24-----2021-01-21 85.191.193.248

2020-06-24-----2021-01-21 5.103.139.163

2020-11-25-----2021-01-21 85.204.137.77

2021-01-21-----2021-01-21 217.198.219.102

2021-01-21-----2021-01-21 83.92.2.24

2021-01-21-----2021-01-21 85.27.231.43

2021-01-21-----2021-01-21 5.103.137.146

2020-06-22-----2020-11-25 80.208.26.235

2020-06-22-----2020-11-25 212.237.100.250

2020-11-25-----2020-11-25 195.137.195.251

2020-06-24-----2020-06-24 91.217.201.134

2020-06-22-----2020-06-22 185.15.72.251

2020-06-22-----2020-06-22 194.192.112.20

2020-06-22-----2020-06-22 217.198.219.101