zerappa.com
Observed Aug 2, 2026, 19:52 UTC (3h 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 byMicrosoft 365
Secured byLet's Encrypt
7 subdomains · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zerappa.com actually stands on - every host below is a signed observation
zerappa.com
A / AAAA
72.167.39.33
unattributedserves the site
NS
coby.ns.cloudflare.comstella.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
zerappa-com.mail.protection.outlook.com
Microsoft 365receives its email
TLS
mail.zerappa.com
Let's Encryptissued its certificate
DNS Records
A 1
72.167.39.33
MX 1
0zerappa-com.mail.protection.outlook.com
TXT 3
MS=ms48930483brevo-code:8ff6748778f6ec70b1ce3e382d125f59v=spf1 include:spf.protection.outlook.com -all
NS 2
coby.ns.cloudflare.comstella.ns.cloudflare.com
SOA 1
coby.ns.cloudflare.com dns.cloudflare.com
DMARC_RECORDS 1
v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
mail.zerappa.com |
C=US, O=Let's Encrypt, CN=YR2 | Wed, 30 Sep 2026 10:05:50 +0000 |
YR2 |
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 (7)
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_b298c1895908c7d6- Output Hash
a89014e2aca4e3895a9370eebd7475faa972715633b024f9d06b2bf14fd5c330- Signature
ed25519:325c4016a2294da779a6056c275586c64d46693680e8493946447bd5d6d77befb8a5b8731af52f34f8a3c17f3f32c8be62751c94dd8442820dbc14ecd2075a0b- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast