upenn.edu
Observed 2026-06-13T12:07:20.033Z (18m ago). Every field below was attested with an Ed25519 signature at scan time.
Don't trust this page — check the math. Verification runs entirely in your browser. Nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
2fe13bd8-894b-40ff-9990-777c377ffd1b- Output Hash
4868cc3209c7afb54de98355e52131d10d553bebc748c9f491262192b94698f7- Signature
ed25519:684d9f075b2db5f7e184deb8833b256038c030bba8ebc3640f5ac63c66f20eaec3c97cc83caa972b5f82abf9a8cabe8d8a437854f70f64b1600430e556db4207- Public Key
ed25519:d3f6015a95abdad7e8166ad80938a5885500170bb75f8cdb425b8fd2772bec29- Parent
(genesis)- Plane
- fast
DNS Records
A 1
23.185.0.4
AAAA 2
2620:12a:8001::42620:12a:8000::4
MX 2
{"priority":10,"exchange":"mxa-00390e01.gslb.pphosted.com"}{"priority":10,"exchange":"mxb-00390e01.gslb.pphosted.com"}
TXT 7
0850FA77764BD1CBAEEDDB31282A3244KO71GJZC894IG1PGQC0AIXUV2G6A8EXBGSMTW1QXdocusign=78297198-f708-4232-b63b-9ce516ae54a1google-site-verification=USSLz8fKaD900NdBD87OEjo0zVYS1RwVyebE0-rN1IIatlassian-domain-verification=maiZsC5JWjh1XYgMeCPA+Eu/1WPEcyn+n7TzXs5ukNzEV/GQRRHFl4jgohfUpHvVv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf.protection.outlook.com include:spf.penno365.isc.upenn.edu ~allv=DMARC1;p=none;fo=1;rua=mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
NS 8
dns1.udel.edudns2.udel.eduadns1.nnn.upenn.eduadns2.nnn.upenn.eduadns3.nnn.upenn.eduadns4.upenn.eduadns5.upenn.eduadns6.upenn.edu
SOA 1
{"mname":"ipam2.nnn.upenn.edu","rname":"hostmaster.upenn.edu","serial":2002530318,"refresh":10800,"retry":3600,"expire":604800,"minimum":600}
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
upenn.edu |
C=US, O=Let's Encrypt, CN=YR1 | Mon, 07 Sep 2026 19:15:27 +0000 |
YR1 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |