iP or domain name lookup

cl21.herokuapp.com Server iP：

Current resolution：

domain resolution record：

2023-06-14-----2023-06-14 23.22.144.165

2023-06-14-----2023-06-14 3.210.192.5

2023-06-14-----2023-06-14 18.211.231.38

2021-03-31-----2021-03-31 108.128.61.164

2021-03-31-----2021-03-31 52.18.161.29

2021-03-31-----2021-03-31 52.31.128.182

2021-03-31-----2021-03-31 52.212.221.28

2021-03-31-----2021-03-31 34.246.247.233

2021-03-31-----2021-03-31 99.81.152.224

2021-03-31-----2021-03-31 52.50.189.174

2021-03-31-----2021-03-31 54.72.45.84

2021-03-31-----2021-03-31 54.171.62.111

2021-03-31-----2021-03-31 52.48.56.224

2021-03-31-----2021-03-31 34.251.174.55

2021-03-31-----2021-03-31 52.50.65.57

2021-03-31-----2021-03-31 52.214.149.142

2021-03-31-----2021-03-31 34.240.116.75

2021-03-31-----2021-03-31 34.255.222.184

2021-03-31-----2021-03-31 34.251.203.222

2021-03-31-----2021-03-31 34.246.252.198

2021-03-31-----2021-03-31 52.31.159.187

2021-03-31-----2021-03-31 18.203.207.241

2021-03-31-----2021-03-31 52.214.142.212

2021-03-31-----2021-03-31 34.252.113.116