k-sc.ru
Observed Aug 12, 2026, 05:04 UTC (4d ago). Every field below was attested with an Ed25519 signature at scan time.
k-sc.ru is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting k-sc.ru 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 k-sc.ru Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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
109.236.209.118
MX 2
20MX22.k-sc.ru10MAIL.k-sc.ru
TXT 1
v=spf1 +a +mx ~all
NS 2
NS2.NAMESERVER.ruNS1.NAMESERVER.ru
SOA 1
NS1.NAMESERVER.ru HOSTMASTER.GOLDSPACE.NET
MCP_RECORDS 1
v=spf1 +a +mx ~all
DMARC_RECORDS 1
v=DMARC1; p=reject; sp=reject; ruf=mailto:postmaster@k-sc.ru; fo=1
BIMI_RECORDS 1
v=spf1 +a +mx ~all
MTA_STS_RECORDS 1
v=spf1 +a +mx ~all
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.k-sc.ru |
C=US, O=Let's Encrypt, CN=YR2 | Tue, 29 Sep 2026 07:48:49 +0000 |
YR2 |
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)
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_64add8d953ef0606- Output Hash
d3a6f528415ff1632ae5afe7ddbe1e5118dcccc0416508eac6f339c390c6fdfe- Signature
ed25519:8e0d8f610e79b508ed3c3e4411ba1fcdcc2e3348e578008dc857940428cb5cf461f0f191e9202cd5596005b162c2222a979126164d83da79e378808e917e1703- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast