iP or domain name lookup

0914.global.ssl.fastly.net Server iP：

Current resolution：

domain resolution record：

2017-11-11-----2017-12-22 151.101.40.249

2017-11-11-----2017-12-21 151.101.0.249

2017-11-11-----2017-12-21 151.101.128.249

2017-12-21-----2017-12-21 151.101.228.249

2017-08-06-----2017-11-11 151.101.72.249

2017-08-06-----2017-08-07 151.101.76.249

2017-08-06-----2017-08-06 151.101.64.249