rb.cz

Observed Aug 3, 2026, 00:57 UTC (8d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of rb.cz was taken 8d ago

rb.cz is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting rb.cz under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch rb.cz Watching a domain needs a DRM3 account. The reading above stays free and public either way.

Verify this receipt yourself + Watch this domain

Up right now

Runs onCloudflare

Email byMicrosoft 365

Secured byDigiCert

Also usesMiroFacebook/MetaGoogle Search Console

tranco_100k

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

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

rb.cz

A / AAAA

185.250.72.130185.250.73.130

Cloudflareserves the site

blue.foundationdns.comblue.foundationdns.netblue.foundationdns.org

foundationdns.com + foundationdns.net + moreanswers its DNS

rbinternational-com.mail.protection.outlook.com

Microsoft 365receives its email

TLS

rb.cz

DigiCert Incissued its certificate

DNS Records

A 2

185.250.72.130
185.250.73.130

MX 1

0rbinternational-com.mail.protection.outlook.com

TXT 12

MS=ms46470727
00D7R000004P55l=1TBbG000000034L
00DbY00000Hff2F=1TBbY00000015th
4qh39v7vc9vfthh8vkzqw290f35d05g6
_2m45f1i7fzn71jsmm048p5bw3s718wi
_9qav760abs2cd8lhw0l1xlnpedk6hc8
jamf-site-verification=jIB78FFgvkcsqrYFYbKwRQ
miro-verification=a378049e2b9c3fa6089486c50e3f09311e0ab34e
facebook-domain-verification=ns8btd31s31blkgwwq7g4v19840uw2
google-site-verification=Cxys0B3AfKRVo12WvceT4yoUIql90Dr0wg3LRdHTc5w

NS 3

blue.foundationdns.com
blue.foundationdns.net
blue.foundationdns.org

SOA 1

blue.foundationdns.com dns.cloudflare.com

DMARC_RECORDS 1

v=DMARC1; p=reject; rua=mailto:lok2jnsf@ag.eu.dmarcadvisor.com; ruf=mailto:lok2jnsf@fr.eu.dmarcadvisor.com

TLS Certificates (3)

Common Name	Issuer	Expires
`rb.cz`	C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1	Wed, 18 Nov 2026 23:59:59 +0000
`DigiCert Global G2 TLS RSA SHA256 2020 CA1`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Mon, 23 Sep 2030 23:59:59 +0000
`DigiCert Global Root G2`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root CA	Sun, 09 Nov 2031 23:59:59 +0000

Subdomains (0)

None observed.

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 receipt

Ed25519 Receipt

Receipt ID: rcpt_c1b7a812fe79e55c
Output Hash: 6a51a6a67691922ad2e34c54caf5dbd55b8b8a82b0f961c6ad4b92c02e3cd202
Signature: ed25519:8fd63bd20b1e3202949008251d91b7717557cb017c838c4c634e3a8b14fd79daecd6f04c55c3acaf613886b584cc5360f22a79ba294c553561668d75362be002
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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