zfin.org
Observed Jul 24, 2026, 22:56 UTC (8d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Up right now
Email byProofpoint
Secured byInternet2
Also usesGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zfin.org actually stands on - every host below is a signed observation
zfin.org
A / AAAA
184.171.92.30
unattributedserves the site
NS
phloem.uoregon.eduruminant.uoregon.edu
uoregon.eduanswers its DNS
MX
mxb-000bfd01.gslb.pphosted.commxa-000bfd01.gslb.pphosted.com
Proofpointreceives its email
TLS
zfin.org
Internet2issued its certificate
DNS Records
A 1
184.171.92.30
MX 2
10mxb-000bfd01.gslb.pphosted.com10mxa-000bfd01.gslb.pphosted.com
TXT 3
google-site-verification=n4fYM_71A_CQ6IP9bi9prOPHab2S2jTQi0JBmMjQqk0v=spf1 ip4:184.171.92.30 ip4:184.171.92.31 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf.protection.outlook.com mx ~allv=DMARC1; p=none; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
NS 2
phloem.uoregon.eduruminant.uoregon.edu
SOA 1
phloem.uoregon.edu hostmaster.uoregon.edu
SRV 2
fogbugz.zfin.org:5222 p5fogbugz.zfin.org:5269 p5
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
zfin.org |
C=US, O=Internet2, CN=InCommon RSA Server CA 2 | Thu, 03 Dec 2026 23:59:59 +0000 |
InCommon RSA Server CA 2 |
C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority | Mon, 15 Nov 2032 23:59:59 +0000 |
USERTrust RSA Certification Authority |
C=GB, ST=Greater Manchester, L=Salford, O=Comodo CA Limited, CN=AAA Certificate Services | Sun, 31 Dec 2028 23:59:59 +0000 |
Subdomains (0)
None observed.
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_310e37b8f7dc944f- Output Hash
b4f10792f0474306be79a56681a0ff32134c2e50e5ddce54e0a5688dd141b02e- Signature
ed25519:29b3b5a22a1bae206216ca914ced75b2142cd8ba9e20d0b2f215cb4154c1488f11a371a57cda22959c802bf06fe2674d18f41c3ef364cb79ed0613215538ec0d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast