rerum.cz

Observed Jul 25, 2026, 19:25 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.

Verify this receipt yourself + Watch this domain

Not responding

Email byGoogle Workspace

Secured byLet's Encrypt

Also usesGoogle Search Console

1 subdomain · tranco

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

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

rerum.cz

A / AAAA

3.74.224.183

unattributedserves the site

ns3.netim.netns2.netim.netns1.netim.net

netim.netanswers its DNS

alt4.aspmx.l.google.comalt1.aspmx.l.google.comalt3.aspmx.l.google.comaspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

rerum.cz

Let's Encryptissued its certificate

DNS Records

A 1

3.74.224.183

MX 5

10alt4.aspmx.l.google.com
5alt1.aspmx.l.google.com
10alt3.aspmx.l.google.com
1aspmx.l.google.com
5alt2.aspmx.l.google.com

TXT 5

google-site-verification=odPqEuUWnIZ4ehXx1p7cf1LEaKETshLPezGzyA4D1MM
v=spf1 include:_spf.google.com include:spf.boldem.cz include:spf.mail-komplet.cz ~all
MS=ms29552354
google-site-verification=TVkJGgEV94PlyIEK9TnQwlzM8Sy6yZtnc4XjA-76Vic
v=DMARC1; p=none;

NS 3

ns3.netim.net
ns2.netim.net
ns1.netim.net

SOA 1

ns1.netim.net hostmaster.netim.net

TLS Certificates (3)

Common Name	Issuer	Expires
`rerum.cz`	C=US, O=Let's Encrypt, CN=YR1	Sun, 18 Oct 2026 13:16:10 +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)

www.rerum.cz

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 rerum.cz. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_8d7e4950083a3b37
Output Hash: 62853c8840a863a1efe040196f8c2a1de9c7abaa61d221622243669ddbccf83d
Signature: ed25519:d2ec73509cb4eb755abb381367907cbe5a42991f6040c45bc58bfaecfb59be4b222f2763a9670894583456eb3cf4fd0e7b81e1dd1bf183db56f1ccc951cdf501
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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