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 caltech.edu .
managed by the owner of caltech.edu .
ns0090.secondary.cloudflare.com
162.159.32.91
The official source of information for this domain,
managed by the owner of caltech.edu .
managed by the owner of caltech.edu .
ns0239.secondary.cloudflare.com
162.159.33.114
South Africa
105.243.201.191
Australia
115.70.244.255
United States of America
135.148.149.226
India
172.232.76.111
Russia
185.246.88.234
Brazil
200.231.34.18
Netherlands
212.27.171.249
Ukraine
91.199.93.61
94.140.15.15
2a0d:2a00:1::
1.0.0.1
2001:4860:4860::8888
NextDNS
45.90.28.66
OpenDns
2620:119:35::35
149.112.112.112
Canada
38.61.51.121
No A records found