iP or domain name lookup

www.cnrobocon.org Server iP：

Current resolution：

domain resolution record：

2023-09-06-----2023-09-28 174.139.72.82

2023-09-28-----2023-09-28 156.234.127.156

2023-09-11-----2023-09-11 156.234.127.107

2023-09-08-----2023-09-10 156.234.127.106

2023-09-09-----2023-09-09 156.234.127.104

2023-09-06-----2023-09-08 156.234.127.151

2023-09-07-----2023-09-07 156.234.127.154

2023-09-07-----2023-09-07 156.234.127.100

2022-03-20-----2022-03-20 180.215.218.243

2021-03-04-----2021-03-04 103.139.0.125

2019-08-02-----2019-08-02 103.241.50.13