iP or domain name lookup

f21b.com Server iP：

Current resolution：

domain resolution record：

2023-02-08-----2024-04-28 104.21.25.87

2023-02-08-----2024-04-28 172.67.133.229

2023-12-26-----2024-01-21 156.251.239.11

2023-12-30-----2024-01-21 156.251.239.147

2024-01-20-----2024-01-20 156.251.239.146

2023-12-30-----2024-01-19 156.251.239.100

2023-12-28-----2024-01-18 156.251.239.109

2023-12-24-----2024-01-14 156.251.239.149

2023-12-24-----2024-01-14 156.251.239.148

2023-12-30-----2024-01-14 156.251.239.12

2024-01-03-----2024-01-09 156.251.239.110

2023-12-30-----2024-01-07 156.251.239.10

2023-11-04-----2024-01-06 156.251.239.178

2023-12-25-----2024-01-06 156.251.239.108

2023-11-19-----2024-01-04 156.251.239.101

2023-11-04-----2023-12-30 156.251.239.104

2023-11-24-----2023-12-30 156.251.239.102

2023-12-30-----2023-12-30 156.251.239.13

2023-11-04-----2023-12-20 156.251.239.181

2023-11-17-----2023-12-19 156.251.239.186

2023-11-10-----2023-12-18 156.251.239.188

2023-11-18-----2023-12-13 156.251.239.184

2023-11-07-----2023-12-10 156.251.239.103

2023-11-18-----2023-12-10 156.251.239.182

2023-11-28-----2023-12-03 156.251.239.179

2023-11-10-----2023-11-25 156.251.239.189

2023-11-12-----2023-11-12 156.251.239.180

2023-11-11-----2023-11-11 156.251.239.183

2023-11-05-----2023-11-10 156.251.239.105

2023-08-19-----2023-11-02 156.234.127.102

2023-10-03-----2023-11-01 156.234.127.104

2023-09-15-----2023-10-31 156.234.127.107

2023-10-13-----2023-10-28 127.0.0.1

2023-10-17-----2023-10-28 156.234.127.184

2023-10-27-----2023-10-28 156.234.127.187

2023-10-10-----2023-10-23 156.234.127.178

2023-10-13-----2023-10-23 156.234.127.186

2023-10-05-----2023-10-22 156.234.127.179

2023-09-23-----2023-10-21 156.234.127.103

2023-08-14-----2023-10-20 156.234.127.106

2023-10-17-----2023-10-19 156.234.127.185

2023-10-18-----2023-10-18 156.234.127.182

2023-10-17-----2023-10-17 156.234.127.189

2023-08-28-----2023-10-16 156.234.127.101

2023-10-16-----2023-10-16 156.234.127.190

2023-09-14-----2023-10-13 156.234.127.149

2023-10-07-----2023-10-11 156.234.127.183

2023-10-10-----2023-10-10 156.234.127.181

2023-10-09-----2023-10-09 156.234.127.188

2023-09-16-----2023-10-06 156.234.127.155