iP or domain name lookup

coursera.org Server iP：

Current resolution：

domain resolution record：

2021-03-09-----2024-04-10 13.224.163.126

2023-06-18-----2024-04-10 13.33.88.119

2023-06-21-----2024-04-10 18.173.121.88

2023-06-23-----2024-04-10 18.173.121.91

2023-06-28-----2024-04-10 18.173.121.105

2023-07-23-----2024-04-10 18.173.121.111

2023-07-25-----2024-04-10 18.164.174.32

2023-07-25-----2024-04-10 18.164.174.73

2023-07-26-----2024-04-10 18.172.31.118

2023-08-23-----2024-04-10 18.172.31.9

2024-04-07-----2024-04-10 18.66.102.2

2024-04-10-----2024-04-10 18.66.102.79

2024-04-10-----2024-04-10 18.66.102.11

2024-04-10-----2024-04-10 18.66.102.16

2020-12-29-----2024-04-01 13.224.163.122

2022-01-03-----2024-04-01 18.66.97.83

2022-02-23-----2024-04-01 18.66.97.124

2022-06-07-----2024-04-01 18.66.97.101

2022-11-10-----2024-04-01 13.33.88.124

2023-07-25-----2024-04-01 18.164.174.114

2023-10-06-----2024-04-01 18.65.207.9

2023-10-08-----2024-04-01 18.65.207.58

2023-10-16-----2024-04-01 18.65.207.89

2024-04-01-----2024-04-01 108.157.14.41

2024-04-01-----2024-04-01 108.157.14.124

2021-06-24-----2024-03-17 13.224.163.33

2021-11-23-----2024-03-17 18.66.97.59

2022-11-28-----2024-03-17 13.33.88.53

2023-07-25-----2024-03-17 18.164.174.59

2022-08-17-----2024-01-26 13.33.88.33

2023-10-08-----2024-01-26 18.65.207.39

2021-11-14-----2024-01-25 13.225.114.91

2022-03-12-----2024-01-25 13.224.167.11

2022-06-27-----2024-01-25 13.224.167.99

2022-06-27-----2024-01-25 13.224.167.35

2022-07-29-----2024-01-25 13.224.167.45

2023-07-25-----2024-01-25 18.172.31.80

2023-07-25-----2024-01-25 18.172.31.14

2023-08-23-----2024-01-25 204.246.191.71

2024-01-25-----2024-01-25 204.246.191.121

2023-08-22-----2024-01-23 13.33.33.67

2024-01-18-----2024-01-18 13.33.33.73

2023-07-25-----2024-01-17 18.238.192.28

2023-07-25-----2024-01-16 18.238.192.123

2020-09-21-----2024-01-15 13.225.114.49

2021-06-13-----2024-01-15 13.33.5.62

2021-06-28-----2024-01-15 13.33.5.14

2021-06-28-----2024-01-15 13.33.5.52

2023-07-25-----2024-01-15 18.238.192.97

2023-07-25-----2024-01-15 18.238.192.102