caltech.edu DNS records

A IPv4 address
5m
52.26.125.194
Amazon.com
AS16509
United States of America
Boardman, Oregon
AAAA IPv6 address
15m
caltech.edu has no AAAA records.
CNAME Canonical name
Apex domains cannot have CNAME records.
TXT Human readable text
1h
SPF
Sender policy
v=spf1 ip4:131.215.0.0/16 ip4:134.4.0.0/16 ip4:192.100.16.0/24 ip4:198.129.208.0/23 ip4:208.69.128.0/22 ip4:199.188.184.0/22 ip4:198.202.125.128/25 ip4:74.122.104.0/22 ip4:72.10.184.102 ip4:72.10.184.103 include:spf.protection.outlook.com include:sendgrid.net include:mktomail.com include:spf.dynect.net include:cust-spf.cashnet.com include:amazonses.com include:_spf.createsend.com include:_spf01.mykronos.com include:_s0.caltech.edu ?all
1Password
Domain verification
1password-site-verification=VRLN67QMNNEPXIIREL6TDZABF4
Adobe identity provider
Domain verification
adobe-idp-site-verification=1e150df049a820e49156727d1b84c48a1ae11f66f87ad76d2cf30cb9d378acb6
Amazon SES
Domain verification
amazonses:CBaUu/J2wBFtHuO9isUzHAXTnIWcN5RyPUBvggu7SNE=
Amazon SES
Domain verification
amazonses:X9y0RbFXXvxu3ft83xg2e+YV++OUePTUSeCOdB3Chjg=
Apple
Domain verification
apple-domain-verification=KD7b3wNXe76BHRAV
Microsoft
Domain verification
MS=ms43712753
Zoom
Domain verification
ZOOM_verify_a-Gb5-aqQgygEiKsnho63w
iContact1389932
Y84qDmmAIPozyUoBIRWmXsFltoU2Pl8b8WGKPlqgz+1t5Db4z9H5ngaaCTq3TTaOK+SCPYUsGVlGn0wUzXNdow==
MX Mail server
12h
mx1.caltech.iphmx.com 10 Primary
mx2.caltech.iphmx.com 10 Primary
NS Authoritative DNS server
12h
ns0090.secondary.cloudflare.com
Cloudflare
ns0239.secondary.cloudflare.com
Cloudflare
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