materasso.cz
Observed Aug 16, 2026, 14:15 UTC (5h 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.
Let's EncryptDomainDrift asked this domain for a TXT record at a name nobody registers, and got an answer back. A domain that answers a name that was never created is answering names in general, and that is wildcard DNS.
Wildcard DNS clusters around domain parking, dynamic DNS and catch-all hosting. It is also a real attack surface: if every invented hostname resolves, then a hostname an attacker invents resolves too, which is the ground state for subdomain takeover and for phishing hosted under a name that looks legitimate.
This is evidence of wildcard behaviour, not a proven fact. It rests on one control name: a domain could legitimately serve a TXT record at exactly that name for an unrelated reason, and a wildcard that answers address records but not TXT records would not be caught here at all. What this reading is and is not.
DNS Records
A 1
46.29.4.57
MX 2
100mailsrv2.dsidata.sk10mailsrv.dsidata.sk
TXT 1
v=spf1 a mx include:_spf.dsidata.sk -all
NS 2
ns3.dsidata.skns2.dsidata.sk
SOA 1
ns2.dsidata.sk dns.dsidata.sk
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
materasso.cz |
C=US, O=Let's Encrypt, CN=YR1 | Tue, 10 Nov 2026 04:02:17 +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 (4)
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 receiptEd25519 Receipt
- Receipt ID
rcpt_cd57f4445560e6f3- Output Hash
c304a634d193d0f941e9cb92d77388c1daaad8717c79c9e3918ff4c87b6b9906- Signature
ed25519:0033abffe4df998772c9ff9b88f279445cde0eb08d43803f9a9a601b695fdc47f18343200c5d5b823273ab757c912e8afdf3176ba80013418821cea2541ba705- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast