OPT records have propagated
All servers we queried returned the same DNS records.
Not the record you expected?
- Recently moved this domain to another DNS server? Check the NS records .
- Check for typos and misconfigurations.
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
105.246.188.222
Australia
123.100.147.201
India
172.232.76.111
Russia
185.246.88.234
Ukraine
193.238.152.32
Brazil
200.231.34.18
United States of America
5.161.111.156
Canada
51.222.248.234
Netherlands
80.74.29.136
2a10:50c0::ad2:ff
185.228.168.168
2606:4700:4700::1001
2001:4860:4860::8844
NextDNS
2a07:a8c1::53:54e9
OpenDns
2620:119:35::35
9.9.9.9
No OPT records found