mba-esg.com
Observed Aug 16, 2026, 13:57 UTC (4h 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
Microsoft 365Secured byLet's Encrypt
Let's Encryptmajestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat mba-esg.com actually stands on - every host below is a signed observation
mba-esg.com
A / AAAA
51.91.60.76
unattributedserves the site
NS
crystal.ns.cloudflare.comelias.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mbaesg-com0i.mail.protection.outlook.com
Microsoft 365receives its email
TLS
mba-esg.com
Let's Encryptissued its certificate
DNS Records
A 1
51.91.60.76
MX 1
0mbaesg-com0i.mail.protection.outlook.com
TXT 1
v=spf1 mx include:websites-spf.oxymis.fr include:spf.protection.outlook.com include:spf.pole-esg.fr include:customers.clickdimensions.com -all
NS 2
crystal.ns.cloudflare.comelias.ns.cloudflare.com
SOA 1
crystal.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
mba-esg.com |
C=US, O=Let's Encrypt, CN=YE1 | Sun, 27 Sep 2026 14:29:39 +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 (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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_562fe780c00c491a- Output Hash
d7212c61ecce576addba0169692ca64a5fe87b5385d6f2f770d8fc7c75592b7b- Signature
ed25519:36083addad2f756256b4e57615babe268258028f664527eb7f8e7bc5dd194deb515ddd80d37bdd26b6be657fecbe52008ad49385dde10a8c14f6c38d26b6f106- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast