iP or domain name lookup

sockjs-ap1.pusher.com Server iP：

Current resolution：

domain resolution record：

2023-01-19-----2023-04-11 13.213.113.163

2023-01-19-----2023-04-11 13.215.58.182

2023-01-19-----2023-04-11 18.139.191.86

2019-07-15-----2020-06-19 52.221.187.228

2020-01-14-----2020-06-19 13.229.211.177

2020-06-19-----2020-06-19 13.229.88.5

2020-06-19-----2020-06-19 3.1.50.245

2019-07-15-----2019-07-16 13.229.242.138

2017-09-29-----2017-09-30 54.169.134.84

2017-09-29-----2017-09-30 54.169.54.173