bookport.cz

Observed Aug 12, 2026, 03:55 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of bookport.cz was taken 2d ago

bookport.cz is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting bookport.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 bookport.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 onMicrosoft Corporation

Email byMicrosoft 365

Secured byDigiCert

Also usesFacebook/MetaGoogle Search Console

DNSSEC on · tranco

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

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

bookport.cz

A / AAAA

13.81.7.21

Microsoft Corporationserves the site

ns1.websupport.czns2.websupport.czns3.websupport.eu

websupport.cz + websupport.euanswers its DNS

bookport-cz.mail.protection.outlook.comgateway.grada.czmail-relay-2.nethost.cz

Microsoft 365receives its email

TLS

bookport.cz

DigiCert Incissued its certificate

DNS Records

A 1

13.81.7.21

MX 3

0bookport-cz.mail.protection.outlook.com
10gateway.grada.cz
50mail-relay-2.nethost.cz

TXT 5

MS=ms62727425
m5hci853lntvujnts812caq3d9
facebook-domain-verification=ulr74jrrlf3bsekk8u9s1dyyvj2hu9
google-site-verification=_jEIQ0cZAc4MMAcP-V3rJLouMblHmb-HLAeXJr44L1s
v=spf1 include:sendgrid.net include:spf.protection.outlook.com include:mailgun.org ~all

NS 3

ns1.websupport.cz
ns2.websupport.cz
ns3.websupport.eu

SOA 1

ns1.websupport.cz admin.websupport.cz

DMARC_RECORDS 1

v=DMARC1; p=none

TLS Certificates (2)

Common Name	Issuer	Expires
`bookport.cz`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=GeoTrust TLS RSA CA G1	Sat, 28 Nov 2026 23:59:59 +0000
`GeoTrust TLS RSA CA G1`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Tue, 02 Nov 2027 12:23:37 +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_fdaea386e94ee242
Output Hash: 5109b040031dae2f0b45574b372c988a6c44b8b53bc0241e09e9ed0f810c10f1
Signature: ed25519:38871dafc36393bd60870d60911fa474324a1ecf059f3459a14b1176d1c9b341ef9738685d13e2cd8e0fdb9e9eb0ca0e027754600449bcc46755d61bbe23f500
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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