mb-net.cz
Observed Aug 16, 2026, 10:45 UTC (13h 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 EncryptRegistered withREG-INTERNET-CZ
Also usesGoogle Search Console
Google Search ConsoleIPv6 · 1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for mb-net.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 mb-net.cz actually stands on - every host below is a signed observation
mb-net.cz
A / AAAA
78.156.158.912a00:d940:0:3::91
2a00serves the site
NS
ns.grdns.czns.grdns.it
grdns.cz + grdns.itanswers its DNS
MX
mbnet-cz0e.mail.protection.outlook.com
Microsoft 365receives its email
TLS
mb-net.cz
Let's Encryptissued its certificate
DNS Records
A 1
78.156.158.91
AAAA 1
2a00:d940:0:3::91
MX 1
0mbnet-cz0e.mail.protection.outlook.com
TXT 8
MS=ms904413290rpjwgwn18kkdz4mgf1p3g8k3ftqkryf_4hi5ua27h6am9v6gz3nid62w9rjtwpu_o7nplwqwbnigfmoqumvg8prbn9amad7MS=EEA5EF437FD7593247BE427B7B38624DA36B5AABgoogle-site-verification=FMgMFvG84ZvfDueQonAHkBB21EfZ00nfZ7smD2_r4pwgoogle-site-verification=rr5vDwjg_2oc1uYHGolh-AHVOqy8ZAex4CgJtHyU09kv=spf1 include:spf.protection.outlook.com a:fw.mb-net.cz a:mail2.mb-net.cz a:fw.tkmb.cz -all
NS 2
ns.grdns.czns.grdns.it
SOA 1
ns.grdns.cz admin.forpsi.com
DMARC_RECORDS 1
v=DMARC1; p=reject; rua=mailto:reporty-dmarc@mb-net.cz; ruf=mailto:reporty-dmarc@mb-net.cz; adkim=s; aspf=s;
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
mb-net.cz |
C=US, O=Let's Encrypt, CN=YR1 | Thu, 08 Oct 2026 04:16:18 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_0f423f03052e7434- Output Hash
5fd5ab2a0681ff1409e628373077f4472836657e2eabd88d3a483eac2fa72ada- Signature
ed25519:6d38257c82bb5a3a9dadf5d5d1fac0adb43a9c33018a337f6eb9cecff1169c5047961de20f3385319707ac7c874bfc0a495d3184c6a6cb158395bec66e431e08- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast