OPT records not consistent
Authoritative servers are returning different records.
- This likely indicates a DNS server configuration issue.
- Records may not have propagated among authoritative servers yet.
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 .
ext-ns1.columbia.edu
128.59.1.1
Australia
118.211.54.164
United States of America
129.153.155.81
Brazil
187.102.161.38
South Africa
41.23.184.213
Netherlands
81.28.93.189
Russia
84.201.149.253
Canada
99.209.23.250
94.140.14.14
185.228.168.168
2606:4700:4700::1111
8.8.8.8
NextDNS
2a07:a8c1::53:54e9
149.112.112.112
No OPT records found
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
Ukraine
176.36.84.86
OpenDns
208.67.222.222
CNAME
neuroepigenomics.org