janiczek.cz
Observed Aug 16, 2026, 18:22 UTC (6h 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.
Guarded by a firewall
Email byGoogle Workspace
Google WorkspaceSecured byLet's Encrypt
Let's EncryptRegistered withREG-CZNIC
domcop
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for janiczek.cz in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.
INFRASTRUCTURE MAPwhat janiczek.cz actually stands on - every host below is a signed observation
janiczek.cz
A / AAAA
77.78.105.44
unattributedserves the site
NS
a.ns.tojeono.czb.ns.tojeono.czc.ns.tojeono.cz
tojeono.czanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+3 more
Google Workspacereceives its email
TLS
janiczek.cz
Let's Encryptissued its certificate
DNS Records
A 1
77.78.105.44
MX 7
1aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10aspmx2.googlemail.com10aspmx3.googlemail.com10aspmx4.googlemail.com10aspmx5.googlemail.com
NS 3
a.ns.tojeono.czb.ns.tojeono.czc.ns.tojeono.cz
SOA 1
a.ns.tojeono.cz hostmaster.janiczek.cz
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
janiczek.cz |
C=US, O=Let's Encrypt, CN=YR1 | Wed, 16 Sep 2026 21:13:33 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_570b747b99b3b6ed- Output Hash
9277d66c8c44b900008855f995cdaec3834ea5bef5bce351ea036d0618e1ea48- Signature
ed25519:08dc7c4f457867e574f84cc0a96a9c59a8d33acca9f62b8b8514a28e46e37b4cd47d007884bb76751b3ed77f7b1c89d1c984d98af53acf4b781d3289d8fc9008- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast