iP or domain name lookup

a.kube.sigmapool.com Server iP：

Current resolution：

domain resolution record：

2020-08-12-----2021-11-30 18.156.81.156

2021-11-30-----2021-11-30 199.96.58.85

2021-11-30-----2021-11-30 31.13.68.22

2021-11-30-----2021-11-30 66.220.147.11

2021-11-30-----2021-11-30 104.244.45.246

2021-11-30-----2021-11-30 104.244.43.208

2021-11-30-----2021-11-30 157.240.17.36

2021-11-30-----2021-11-30 31.13.83.1

2021-11-30-----2021-11-30 104.244.46.5

2021-11-30-----2021-11-30 104.16.252.55

2021-11-30-----2021-11-30 103.223.122.178

2021-11-30-----2021-11-30 0.0.0.0