iP or domain name lookup

s21.q4cdn.com Server iP：

Current resolution：

domain resolution record：

2019-09-29-----2025-09-30 139.99.123.118

2019-09-29-----2025-09-30 68.70.205.2

2019-12-01-----2025-09-30 139.99.62.128

2025-05-25-----2025-09-30 199.254.199.61

2019-09-29-----2025-05-25 185.172.148.132

2021-07-19-----2025-05-25 68.70.205.3

2023-06-20-----2024-06-22 199.254.199.17

2024-06-22-----2024-06-22 68.70.205.4

2024-06-22-----2024-06-22 185.172.148.128

2023-06-20-----2023-06-20 68.70.207.3

2019-09-29-----2019-12-01 161.202.144.198

2018-04-10-----2019-08-24 161.202.39.238

2019-07-15-----2019-08-24 156.38.130.226

2018-04-10-----2018-04-10 209.58.185.108