dunham.io
Observed Jul 27, 2026, 09:32 UTC (4d 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 byGoogle Workspace
Secured byLet's Encrypt
1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat dunham.io actually stands on - every host below is a signed observation
dunham.io
A / AAAA
52.40.169.102
unattributedserves the site
NS
ns-1460.awsdns-54.orgns-1562.awsdns-03.co.ukns-176.awsdns-22.comns-513.awsdns-00.net
awsdns-54.org + awsdns-03.co.uk + moreanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+1 more
Google Workspacereceives its email
TLS
dunham.io
Let's Encryptissued its certificate
DNS Records
A 1
52.40.169.102
MX 5
1aspmx.l.google.com3alt1.aspmx.l.google.com3alt2.aspmx.l.google.com5aspmx2.googlemail.com5aspmx3.googlemail.com
TXT 2
v=spf1 include:_spf.google.com include:amazonses.com ~allv=DMARC1; p=none; pct=100; rua=mailto:re+mp1wbz5fbxy@dmarc.postmarkapp.com; sp=none; aspf=r;
NS 4
ns-1460.awsdns-54.orgns-1562.awsdns-03.co.ukns-176.awsdns-22.comns-513.awsdns-00.net
SOA 1
ns-513.awsdns-00.net awsdns-hostmaster.amazon.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
dunham.io |
C=US, O=Let's Encrypt, CN=YE1 | Sat, 17 Oct 2026 14:02:13 +0000 |
YE1 |
C=US, O=ISRG, CN=Root YE | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YE |
C=US, O=Internet Security Research Group, CN=ISRG Root X2 | Thu, 02 Sep 2032 23:59:59 +0000 |
ISRG Root X2 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (1)
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_cb3d1f88af2a3fd5- Output Hash
86049ece736a616a23f444d05878db3c0e881526ff68e35f0c3d9a274855bae9- Signature
ed25519:41491b36e27bc324dc85544bbaee52c612b077b209b9eceeea1eddb5c07edb737247db0e0634300e93c26df2abf4d998e650b1218537cbb0933eba1df7f2d405- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast