THE RECORDS BEHIND THE NAME
DNS lookup.
Explore resource records, mail routing and reverse DNS.
Public IPs automatically use PTR. Common records queries A, AAAA, MX, NS, CNAME, TXT, SOA and CAA separately.
Querying DNS records…
DNS
20 answer recordscaltech.edu
ANOERRORAD yes
AAAANOERROR · no answersAD yes
MXNOERRORAD yes
NSNOERRORAD yes
CNAMENOERROR · no answersAD yes
TXTNOERRORAD yes
SOANOERRORAD yes
CAANOERROR · no answersAD yes
AD indicates that the resolver reports DNSSEC-validated data. “AD no” can also mean the zone is unsigned. NXDOMAIN is a DNS result, not a domain-availability check.
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| A | caltech.edu | 300 | 52.26.125.194 | IP WHOIS → |
| MX | caltech.edu | 43200 | 10 mx1.caltech.iphmx.com. | DNS → |
| MX | caltech.edu | 43200 | 10 mx2.caltech.iphmx.com. | DNS → |
| NS | caltech.edu | 43200 | ns0090.secondary.cloudflare.com. | DNS → |
| NS | caltech.edu | 43200 | ns0239.secondary.cloudflare.com. | DNS → |
| TXT | caltech.edu | 3600 | "MS=ms43712753" | — |
| TXT | caltech.edu | 3600 | "iContact1389932" | — |
| TXT | caltech.edu | 3600 | "jk01vgvoojdefne9jihhtis667" | — |
| TXT | caltech.edu | 3600 | "ZOOM_verify_a-Gb5-aqQgygEiKsnho63w" | — |
| TXT | caltech.edu | 3600 | "apple-domain-verification=KD7b3wNXe76BHRAV" | — |
| TXT | caltech.edu | 3600 | "autodesk-domain-verification=TtWEzwdFn86i9o8NX_8R" | — |
| TXT | caltech.edu | 3600 | "1password-site-verification=VRLN67QMNNEPXIIREL6TDZABF4" | — |
| TXT | caltech.edu | 3600 | "amazonses:CBaUu/J2wBFtHuO9isUzHAXTnIWcN5RyPUBvggu7SNE=" | — |
| TXT | caltech.edu | 3600 | "amazonses:X9y0RbFXXvxu3ft83xg2e+YV++OUePTUSeCOdB3Chjg=" | — |
| TXT | caltech.edu | 3600 | "openai-domain-verification=dv-fRmGl55vmrLnDqlIOcOoidYz" | — |
| TXT | caltech.edu | 3600 | "anthropic-domain-verification-rw8528=rFwrZAPawzCVNGD318e9zzavQ" | — |
| TXT | caltech.edu | 3600 | "Y84qDmmAIPozyUoBIRWmXsFltoU2Pl8b8WGKPlqgz+1t5Db4z9H5ngaaCTq3TTaOK+SCPYUsGVlGn0wUzXNdow==" | — |
| TXT | caltech.edu | 3600 | "adobe-idp-site-verification=1e150df049a820e49156727d1b84c48a1ae11f66f87ad76d2cf30cb9d378acb6" | — |
| TXT | caltech.edu | 3600 | "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 ip4:72.10.182.15 ip4:72.10.182.16 " "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" | — |
| SOA | caltech.edu | 900 | ns0090.secondary.cloudflare.com. hostmaster.caltech.edu. 2022899768 10800 3600 2592000 900 | — |
Authority records · 1
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| SOA | caltech.edu | 900 | ns0090.secondary.cloudflare.com. hostmaster.caltech.edu. 2022899768 10800 3600 2592000 900 | — |
Results reflect the public DNS view and recursive caching; they may differ from your local network. TXT strings retain their DNS quoting. Common records does not enumerate every name or record in a zone.