A records not consistent
Authoritative servers agree, but not all other servers do.
- This is normal for A records. They can be geo- or round-robin load-balanced.
- Some servers may have cached older records. Wait for their TTLs to expire.
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 nih.gov .
managed by the owner of nih.gov .
ns.nih.gov
128.231.128.251
The official source of information for this domain,
managed by the owner of nih.gov .
managed by the owner of nih.gov .
ns2.nih.gov
128.231.64.1
The official source of information for this domain,
managed by the owner of nih.gov .
managed by the owner of nih.gov .
ns3.nih.gov
165.112.4.230
Canada
138.197.151.30
United States of America
157.230.216.17
India
172.232.76.111
Netherlands
185.140.209.224
Brazil
200.231.34.18
Australia
203.22.100.10
South Africa
41.23.114.73
Ukraine
91.239.232.181
94.140.15.15
2a0d:2a00:2::
1.1.1.1
2001:4860:4860::8888
NextDNS
45.90.30.66
OpenDns
2620:119:35::35
2620:fe::fe
Russia
217.26.29.42
No A records found