iP or domain name lookup

1.de.pool.ntp.org Server iP：

Current resolution：

domain resolution record：

2016-04-18-----2024-03-22 131.188.3.220

2017-02-06-----2024-03-22 217.91.44.17

2019-08-24-----2024-03-22 78.46.53.2

2019-08-30-----2024-03-22 51.75.67.47

2019-09-01-----2024-03-22 62.128.1.19

2019-09-02-----2024-03-22 144.76.139.8

2020-07-20-----2024-03-22 213.239.234.28

2020-07-20-----2024-03-22 54.36.110.36

2020-07-20-----2024-03-22 176.9.44.212

2024-03-22-----2024-03-22 185.248.188.98

2024-03-22-----2024-03-22 45.142.247.74

2024-03-22-----2024-03-22 79.133.44.138

2024-03-22-----2024-03-22 128.140.109.119

2024-03-22-----2024-03-22 144.76.66.157

2024-03-22-----2024-03-22 128.140.51.71

2024-03-22-----2024-03-22 5.9.145.2

2024-03-22-----2024-03-22 85.215.166.214

2024-03-22-----2024-03-22 158.101.188.125

2024-03-22-----2024-03-22 91.198.32.34

2024-03-22-----2024-03-22 45.9.61.155

2024-03-22-----2024-03-22 212.95.49.48

2024-03-22-----2024-03-22 141.98.136.83

2019-08-31-----2023-06-30 212.18.3.19

2020-06-22-----2023-06-30 88.99.76.254

2023-06-30-----2023-06-30 178.18.255.231

2019-08-31-----2023-06-21 213.209.109.44

2023-06-21-----2023-06-21 78.47.250.33

2023-06-21-----2023-06-21 82.220.100.140

2019-08-30-----2023-01-06 78.46.60.40

2019-10-11-----2023-01-06 176.9.42.91

2020-03-31-----2023-01-06 176.9.166.35

2020-06-16-----2023-01-06 131.188.3.223

2023-01-06-----2023-01-06 167.235.228.35

2023-01-06-----2023-01-06 193.203.3.170

2023-01-06-----2023-01-06 3.64.117.201

2023-01-06-----2023-01-06 131.234.220.232

2023-01-06-----2023-01-06 85.215.93.134

2023-01-06-----2023-01-06 81.169.199.94

2016-04-18-----2022-05-28 129.70.132.35

2019-09-02-----2022-05-28 138.201.90.189

2020-03-30-----2022-05-28 162.159.200.123

2020-06-17-----2022-05-28 78.46.162.102

2020-06-19-----2022-05-28 173.249.33.207

2021-02-24-----2022-05-28 194.36.144.87

2022-02-14-----2022-05-28 157.90.3.240

2022-05-28-----2022-05-28 185.21.224.3

2022-05-28-----2022-05-28 78.47.118.0

2022-05-28-----2022-05-28 130.255.77.87

2022-05-28-----2022-05-28 188.68.59.79

2020-03-30-----2022-02-14 78.46.102.180