rmm.cz
Observed Jul 26, 2026, 06:17 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
Email byMicrosoft 365
Secured byLet's Encrypt
1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat rmm.cz actually stands on - every host below is a signed observation
rmm.cz
A / AAAA
77.240.191.56
unattributedserves the site
NS
ns.netserv.czns2.netserv.cz
netserv.czanswers its DNS
MX
rmm-cz.mail.protection.outlook.com
Microsoft 365receives its email
TLS
rmm.cz
Let's Encryptissued its certificate
DNS Records
A 1
77.240.191.56
MX 1
0rmm-cz.mail.protection.outlook.com
TXT 2
v=spf1 ip4:77.240.191.53 include:sendgrid.net include:spf.protection.outlook.com -allMS=ms86447463
NS 2
ns.netserv.czns2.netserv.cz
SOA 1
ns.netserv.cz nomail.pcmail.cz
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
rmm.cz |
C=US, O=Let's Encrypt, CN=YR1 | Mon, 07 Sep 2026 19:56:44 +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 (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_d90bbeaed17e7341- Output Hash
f8af67743eb31884a8c86739a26767abc6c91383da50727d9b079a986773e15e- Signature
ed25519:935d21edfafa2161087b9dbb8701dae589f4e8c85cc749354978a53126e7a826b0aa283031afb4d3ebc0a80ff6ca965d6b7fcfb25628617e38d16a1561e8e400- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast