_s0.caltech.edu DNS records

A IPv4 address
15m
_s0.caltech.edu has no A records.
AAAA IPv6 address
15m
_s0.caltech.edu has no AAAA records.
CNAME Canonical name
15m
_s0.caltech.edu has no CNAME records.
TXT Human readable text
12h
SPF
Sender policy
v=spf1 ip4:54.240.58.157 ip4:34.210.236.207 ip4:67.231.149.30 ip4:216.32.146.13 ip4:12.129.29.143 ip4:67.231.151.23 ip4:67.231.157.15 ip4:67.231.149.15 ip4:66.151.109.0/24 ip4:74.213.141.250/31 ip4:74.213.147.250/31 ip4:198.60.22.0/24 ip4:166.70.13.0/24 ip4:166.70.11.0/24 ip4:184.73.24.220 ip4:198.2.180.57 ip4:149.72.219.196 ip4:23.251.229.37 ip4:68.232.148.132 ip4:68.232.157.238 ip4:68.232.147.192 ip4:68.232.137.147 ?all
MX Mail server
15m
_s0.caltech.edu has no MX records.
NS Authoritative DNS server
15m
_s0.caltech.edu has no NS records.
NS records for this zone are defined at caltech.edu.
NS records for caltech.edu
SOA Start of authority
15m
Zone apex
Start of authority
Email
[email protected]
Serial
2022897802
Refresh
3h
Retry
1h
Expire
30d
Negative cache TTL
15m

Other record types

A AAAA AFSDB APL AXFR CAA CDNSKEY CDS CERT CNAME CSYNC DHCID DLV DNAME DNSKEY DS EUI48 EUI64 HINFO HIP HTTPS IPSECKEY IXFR KEY KX LOC MX NAPTR NS NSEC3 NSEC3PARAM NSEC NXT OPENPGPKEY OPT PTR RP RRSIG SIG SMIMEA SOA SPF SSHFP SVCB SRV TA TKEY TLSA TSIG TXT URI ZONEMD