iP or domain name lookup

encryption.a8.ciscospark.com Server iP：

Current resolution：

domain resolution record：

2020-12-24-----2020-12-24 3.21.138.172

2020-12-24-----2020-12-24 3.136.122.81

2020-12-24-----2020-12-24 3.21.50.16

2020-12-24-----2020-12-24 3.13.101.27

2020-12-24-----2020-12-24 3.20.155.245

2020-12-24-----2020-12-24 3.21.151.174

2020-12-24-----2020-12-24 3.132.121.157

2020-12-24-----2020-12-24 3.130.116.228

2020-12-24-----2020-12-24 3.12.35.124

2020-12-24-----2020-12-24 3.21.65.128

2020-12-24-----2020-12-24 3.136.179.191

2020-12-24-----2020-12-24 3.136.223.87

2020-12-24-----2020-12-24 3.20.154.194

2020-12-24-----2020-12-24 3.12.178.240