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
23 answer recordsupenn.edu
ANOERRORAD yes
AAAANOERRORAD 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 | upenn.edu | 83969 | 23.185.0.4 | IP WHOIS → |
| AAAA | upenn.edu | 82850 | 2620:12a:8000::4 | IP WHOIS → |
| AAAA | upenn.edu | 82850 | 2620:12a:8001::4 | IP WHOIS → |
| MX | upenn.edu | 86400 | 10 mxa-00390e01.gslb.pphosted.com. | DNS → |
| MX | upenn.edu | 86400 | 10 mxb-00390e01.gslb.pphosted.com. | DNS → |
| NS | upenn.edu | 86400 | dns1.udel.edu. | DNS → |
| NS | upenn.edu | 86400 | dns2.udel.edu. | DNS → |
| NS | upenn.edu | 86400 | adns1.nnn.upenn.edu. | DNS → |
| NS | upenn.edu | 86400 | adns2.nnn.upenn.edu. | DNS → |
| NS | upenn.edu | 86400 | adns3.nnn.upenn.edu. | DNS → |
| NS | upenn.edu | 86400 | adns4.upenn.edu. | DNS → |
| NS | upenn.edu | 86400 | adns5.upenn.edu. | DNS → |
| NS | upenn.edu | 86400 | adns6.upenn.edu. | DNS → |
| TXT | upenn.edu | 86400 | "0850FA77764BD1CBAEEDDB31282A3244" | — |
| TXT | upenn.edu | 86400 | "KO71GJZC894IG1PGQC0AIXUV2G6A8EXBGSMTW1QX" | — |
| TXT | upenn.edu | 86400 | "docusign=78297198-f708-4232-b63b-9ce516ae54a1" | — |
| TXT | upenn.edu | 86400 | "jamf-site-verification=2LcBmAh3gm8z6JsJu3k_cQ" | — |
| TXT | upenn.edu | 86400 | "onetrust-domain-verification=114427d55783472c9c6399070d36a7a6" | — |
| TXT | upenn.edu | 86400 | "anthropic-domain-verification-3mac1g=J3Hgt9mjdh1LaP7MtfIfyPJBv" | — |
| TXT | upenn.edu | 86400 | "google-site-verification=USSLz8fKaD900NdBD87OEjo0zVYS1RwVyebE0-rN1II" | — |
| TXT | upenn.edu | 86400 | "atlassian-domain-verification=maiZsC5JWjh1XYgMeCPA+Eu/1WPEcyn+n7TzXs5ukNzEV/GQRRHFl4jgohfUpHvV" | — |
| TXT | upenn.edu | 86400 | "v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf.protection.outlook.com include:spf.penno365.isc.upenn.edu ~all" | — |
| SOA | upenn.edu | 3600 | ipam1.nnn.upenn.edu. hostmaster.upenn.edu. 2002706081 10800 3600 604800 600 | — |
Authority records · 1
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| SOA | upenn.edu | 600 | ipam1.nnn.upenn.edu. hostmaster.upenn.edu. 2002706081 10800 3600 604800 600 | — |
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.