muni.cz

Observed Jul 18, 2026, 12:51 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCESNET z.s.p.o

Email byGoogle (SPF sender)

Secured byLet's Encrypt

Also usesGoogle Search ConsoleAtlassian

24 subdomains · tranco_10k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat muni.cz actually stands on - every host below is a signed observation

muni.cz

A / AAAA

147.251.5.239

CESNET z.s.p.oserves the site

ns.muni.czns2.muni.czns2.muninet.cznsa.ces.net

muni.cz + muninet.cz + moreanswers its DNS

relay.muni.cz

Google (SPF sender)receives its email

TLS

www.muni.cz

Let's Encryptissued its certificate

DNS Records

A 1

147.251.5.239

MX 1

50relay.muni.cz

TXT 9

MS=ms85476152
apple-domain-verification=M6QN1Ikp4RMsnLoW
status-page-domain-verification=xxx37pp3swrw
google-site-verification=ftbJc_Whlu5o5bA5VYCNcVPJ195FrL1gkVQNwQUATLU
atlassian-sending-domain-verification=54f720d3-cbcd-420b-ae33-9fcedb78ab54
atlassian-domain-verification=HiD6B1jQ7/Dlw6gabcWmGD6ZYZ2r9ugxcBB1KI594kZw89yTjNnbeEeHcU3UcZGB
v=spf1 ip4:147.251.4.0/26 ip4:147.251.48.3 ip4:147.251.49.6 ip4:147.251.49.7 include:_spf-ips.muni.cz include:_spf.atlassian.net include:stspg-customer.com include:spf.protection.outlook.com include:_spf.google.com -all
v=DMARC1; p=quarantine; pct=100; ruf=mailto:dmarcreports-ruf@muni.cz; rua=mailto:dmarcreports@muni.cz,mailto:dmarc_agg@vali.email; adkim=r; aspf=r; fo=1
v=STSv1; id=20250610T000000Z;

NS 4

ns.muni.cz
ns2.muni.cz
ns2.muninet.cz
nsa.ces.net

SOA 1

ns.muni.cz moucka.ics.muni.cz

CAA 4

issue "digicert.com"
issue "harica.gr"
issue "letsencrypt.org"
issue "sectigo.com"

TLS Certificates (2)

Common Name	Issuer	Expires
`www.muni.cz`	C=US, O=Let's Encrypt, CN=R13	Mon, 10 Aug 2026 13:31:11 +0000
`R13`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Fri, 12 Mar 2027 23:59:59 +0000

Subdomains (24)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for muni.cz. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/muni.cz">
  <img src="https://domaindrift.io/badge/muni.cz.svg"
       width="300" height="64" alt="DomainDrift signed observations for muni.cz">
</a>

Ed25519 Receipt

Receipt ID: d079f924-c724-4a03-91d9-c5b6c547854b
Output Hash: 382f0f5d83eb5dc4ad7199c149e267f28637efe5211d378864d18896f734627d
Signature: ed25519:54200ae737215277c8b974805c26c415fe732f0e3d1bdb906ad8064ca32a62eeb1086f7d167964b9d48eb80614e8d9023b2925f615b0eefea2d4e708b88c2a03
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/muni.cz