AAAA records not consistent
Authoritative servers are returning different records.
- This is normal for AAAA records — they can be geo- or round-robin load-balanced.
- If this is not intentional, check your DNS server configuration.
DNS server
TTL
Time To Live
The amount of time a DNS record is cached for.
Records returned by these servers
The official source of information for this domain,
managed by the owner of columbia.edu .
managed by the owner of columbia.edu .
auth1.dns.cogentco.com
66.28.0.14
The official source of information for this domain,
managed by the owner of columbia.edu .
managed by the owner of columbia.edu .
auth2.dns.cogentco.com
66.28.0.30
The official source of information for this domain,
managed by the owner of columbia.edu .
managed by the owner of columbia.edu .
ns1.lse.ac.uk
158.143.96.8
United States of America
169.55.77.110
South Africa
41.23.190.166
Canada
51.79.40.76
Australia
59.102.109.236
Netherlands
91.201.165.34
Ukraine
91.203.24.27
2a10:50c0::ad2:ff
185.228.168.168
8.8.8.8
NextDNS
45.90.28.66
OpenDns
2620:119:53::53
149.112.112.112
The official source of information for this domain,
managed by the owner of columbia.edu .
managed by the owner of columbia.edu .
ext-ns1.columbia.edu
128.59.1.1
Brazil
138.94.116.57
Russia
178.253.45.86
India
181.214.250.249
1.0.0.1
No AAAA records found