iP or domain name lookup

jrfs.8800.org Server iP：

Current resolution：

domain resolution record：

2019-07-20-----2019-07-20 113.117.15.146

2018-01-22-----2018-01-22 113.86.14.181

2017-12-15-----2017-12-15 113.86.14.221

2017-09-04-----2017-09-06 113.100.6.138

2017-09-06-----2017-09-06 14.125.215.48

2017-08-26-----2017-08-27 183.9.6.5

2017-04-15-----2017-04-15 113.64.183.136