drdougcohen.com
Observed Jul 27, 2026, 21:08 UTC (5d 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
Secured byLet's Encrypt
domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat drdougcohen.com actually stands on - every host below is a signed observation
drdougcohen.com
A / AAAA
198.185.159.145198.49.23.144198.49.23.145198.185.159.144
unattributedserves the site
NS
dns1.p02.nsone.netdns2.p02.nsone.netdns3.p02.nsone.netdns4.p02.nsone.net+4 more
nsone.net + squarespacedns.comanswers its DNS
MX
mx.drdougcohen.com
drdougcohen.comreceives its email
TLS
drdougcohen.com
Let's Encryptissued its certificate
DNS Records
A 4
198.185.159.145198.49.23.144198.49.23.145198.185.159.144
MX 1
30mx.drdougcohen.com
TXT 1
v=spf1 ip4:66.96.128.0/18 ?all
NS 8
dns1.p02.nsone.netdns2.p02.nsone.netdns3.p02.nsone.netdns4.p02.nsone.netns01.squarespacedns.comns02.squarespacedns.comns03.squarespacedns.comns04.squarespacedns.com
SOA 1
dns1.p02.nsone.net hostmaster.nsone.net
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
drdougcohen.com |
C=US, O=Let's Encrypt, CN=YR1 | Thu, 24 Sep 2026 06:00:44 +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 |
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_d18f330c773a06bd- Output Hash
70077aabfbf6f7e4eb6541858378459f56db3a4d6e831e56779400f8acb7bc0e- Signature
ed25519:22a8f6833e1ad61c39fde354bfc468c196b3eb9ee36485affbf5c0c309cc3f83be56a90ff9b2a6cb53b5b7f12898ad7076da90b6ae554d60cf77e75febbdb30d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast