astro.cz
Observed Jul 24, 2026, 05:36 UTC (14h 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.
Not responding
Email byGoogle (SPF sender)
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat astro.cz actually stands on - every host below is a signed observation
astro.cz
A / AAAA
147.231.104.19
unattributedserves the site
NS
visla.utia.cas.czns.astro.cz
cas.cz + astro.czanswers its DNS
MX
mx1.nuabi.comcallisto.astro.cz
Google (SPF sender)receives its email
DNS Records
A 1
147.231.104.19
MX 2
20mx1.nuabi.com10callisto.astro.cz
TXT 2
v=spf1 mx ip4:147.231.104.16/28 ip4:82.208.40.25 ip4:217.11.236.25 ip4:217.11.236.27 ip4:217.11.236.28 ip4:82.208.40.17 ip4:82.208.40.18 ip4:82.208.40.19 include:_spf.google.com ?allv=DMARC1; p=none
NS 2
visla.utia.cas.czns.astro.cz
SOA 1
ns.astro.cz hostmaster.astro.cz
TLS Certificates (0)
None.
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; nothing leaves your machine.
Verify this receiptPut the receipt on your own site. A live badge showing what DomainDrift observes and signs for astro.cz. It updates itself. It attests a signed observation - not that the site is safe.
<a href="https://domaindrift.io/t/astro.cz">
<img src="https://domaindrift.io/badge/astro.cz.svg"
width="300" height="64" alt="DomainDrift signed observations for astro.cz">
</a>
Ed25519 Receipt
- Receipt ID
rcpt_ec7214b4c612a2b7- Output Hash
41f2273b29468b43f059684c7128184c74518e7aef32fa3a8915d342d17456df- Signature
ed25519:867ac5fcc83598d6f96b417225cb8b4c6079531cd572012beca776809b33f1c0054721d5a103d36118f8dbde5cba5c8af87fc7d7098409442dda21c96e7f3409- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast