ecn.cz
Observed Jul 28, 2026, 22:27 UTC (16h 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
Secured byLet's Encrypt
Also usesGoogle Search Console
IPv6 · 2 subdomains · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ecn.cz actually stands on - every host below is a signed observation
ecn.cz
A / AAAA
80.79.31.1362a01:430:56::136
2a01serves the site
NS
ns1.ecn.czns2.ecnstudio.cz
ecn.cz + ecnstudio.czanswers its DNS
MX
ecn4.ecn.czecn3.ecn.cz
ecn.czreceives its email
TLS
ecnstudio.cz
Let's Encryptissued its certificate
DNS Records
A 1
80.79.31.136
AAAA 1
2a01:430:56::136
MX 2
10ecn4.ecn.cz30ecn3.ecn.cz
TXT 5
google-site-verification=6dtV_g8PpCi_cvG8sZnw9s1-jYW782SCqYWkUDL_6ycv=spf1 ip4:80.79.31.143 ip4:80.79.31.4 ip4:80.79.31.136/32 ip4:78.46.175.93 ip6:2a01:4f8:c17:917::2 ip6:2a01:430:56::/64 mx:ecn.cz ip6:2a01:6400:104:29::/64 ip4:80.92.246.61/32 ip4:84.42.240.38 ip4:217.28.82.54/32 ip6:2a02:28a8:ec42::/48 ~allv=DMARC1; p=quarantine; fo=1; rua=mailto:ecnstudio-d@dmarc.report-uri.com; ruf=mailto:postmaster-dmarc@ecn.czv=BIMI1; l=https://webservis.ecn.cz/static/img/logo_BIMI.svg; a=;v=STSv1; id=20190412T142500;
NS 2
ns1.ecn.czns2.ecnstudio.cz
SOA 1
ns1.ecn.cz hostmaster.ecn.cz
SRV 3
autoconfig.ecn.cz:443 p0pop.ecn.cz:993 p0smtp.ecn.cz:587 p0
CAA 2
iodef "mailto:hostmaster@ecn.cz"issue "letsencrypt.org"
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
ecnstudio.cz |
C=US, O=Let's Encrypt, CN=YE1 | Fri, 09 Oct 2026 07:13:29 +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 (2)
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_969f136137c83b52- Output Hash
89f0d5fe2839a54d9f54101b537a2ece961224f2860c74572a4d4f13088e22d7- Signature
ed25519:242298f24e17008047d9c94d7fc79e9665deeee0b23756948ba0430472afbc5c146b137118da5b64b1e1b1f0460df18c054dfe26650126084fe9f5cc445d5a05- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast