medax.cz
Observed Aug 16, 2026, 07:37 UTC (1h 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 EncryptIPv6 · 1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat medax.cz actually stands on - every host below is a signed observation
medax.cz
A / AAAA
37.235.104.2182a01:28:ca:112::1:1601
2a01serves the site
NS
ns2.dns4isp.czns.svinov.net
dns4isp.cz + svinov.netanswers its DNS
MX
medax-cz.mail.protection.outlook.com
Microsoft 365receives its email
TLS
www.medax.cz
Let's Encryptissued its certificate
DNS Records
A 1
37.235.104.218
AAAA 1
2a01:28:ca:112::1:1601
MX 1
5medax-cz.mail.protection.outlook.com
TXT 3
v=spf1 ip4:185.175.8.155 ip4:185.175.8.157 ip4:185.175.8.158 ip4:80.211.212.218 ip4:85.92.55.95 a include:spf.protection.outlook.com include:sendgrid.net -allMS=ms10711553MS=975E68FDEFC85F92AD2579423C4D48195BCE0D31
NS 2
ns2.dns4isp.czns.svinov.net
SOA 1
ns.svinov.net gwartass.svinov.net
DMARC_RECORDS 1
v=DMARC1;p=none;
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
www.medax.cz |
C=US, O=Let's Encrypt, CN=YE1 | Fri, 23 Oct 2026 11:24:19 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_a1d0a867a6c60080- Output Hash
53156300d0824100acc46dfacf21f5b09c341cb4ec9ea33f7451381381ca8fd0- Signature
ed25519:c73273f3e10781c5b5cac333ab15f67967653dd46db3f5b0a7b22d4a99f6b1fe577d585f3b1e36a7fa6e7621dab9fec72828725a6dd0a9836af28a73d748170f- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast