ztefc.hu
Observed Jul 26, 2026, 10:07 UTC (7d 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 byGoogle Workspace
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 ztefc.hu actually stands on - every host below is a signed observation
ztefc.hu
A / AAAA
77.221.39.243
unattributedserves the site
NS
ns1.secdns.euns2.secdns.euns3.secdns.euns4.secdns.eu
secdns.euanswers its DNS
MX
alt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
ztefc.hu
Let's Encryptissued its certificate
DNS Records
A 1
77.221.39.243
MX 5
5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com1aspmx.l.google.com
TXT 5
v=spf1 +mx +a +include:_spf.webmark.hu +a:server18.megacp.com ~allv=spf1 +mx +a +include:_spf.webmark.hu +a:server18.megacp.com ~allv=spf1 +mx +a +include:_spf.webmark.hu +a:server18.megacp.com ~allv=spf1 +mx +a +include:_spf.webmark.hu +a:server18.megacp.com ~allv=spf1 +mx +a +include:_spf.webmark.hu +a:server18.megacp.com ~all
NS 4
ns1.secdns.euns2.secdns.euns3.secdns.euns4.secdns.eu
SOA 1
ns1.secdns.eu admin.secdns.eu
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
ztefc.hu |
C=US, O=Let's Encrypt, CN=YR2 | Sun, 18 Oct 2026 00:48:22 +0000 |
YR2 |
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_0a43c6991262018f- Output Hash
45630073f9868d7af1bd6fe8a495e6975c39027aac813d86415ef8236a35aa0b- Signature
ed25519:d31bbf25ec5bbc78fe8eb3b2e261b2aac20303c68de18a89102471138169442aaff4063eba67b4719f6caf1cdae8b4cc36867f74c30a2a4aea7487a2130e6b0d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast