zs1sci.com
Observed Aug 2, 2026, 21:26 UTC (13h 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.
DomainDrift 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
197.155.17.207
TXT 1
google-site-verification=e8grbBoIDQk9V3ZtfI5xq63vm2ELAtE7me4LIjnawOA
NS 4
ns1.tld-ns.netns4.tld-ns.comns3.tld-ns.netns2.tld-ns.com
SOA 1
ns1.tld-ns.net dns-admin.domains.co.za
MCP_RECORDS 1
google-site-verification=e8grbBoIDQk9V3ZtfI5xq63vm2ELAtE7me4LIjnawOA
DMARC_RECORDS 1
google-site-verification=e8grbBoIDQk9V3ZtfI5xq63vm2ELAtE7me4LIjnawOA
BIMI_RECORDS 1
google-site-verification=e8grbBoIDQk9V3ZtfI5xq63vm2ELAtE7me4LIjnawOA
MTA_STS_RECORDS 1
google-site-verification=e8grbBoIDQk9V3ZtfI5xq63vm2ELAtE7me4LIjnawOA
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
zs1sci.com |
C=US, O=Let's Encrypt, CN=YR1 | Mon, 05 Oct 2026 22:34:16 +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 (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; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_3f8f90108c5de61e- Output Hash
cab0cf96af74aea802f33bb21b03bf2355ea7aea0cf70af3fbdf5af77bf6efff- Signature
ed25519:b20eae129bdebc4f597a94e7837f653bc13f718506d7f0746d910399b162f9430a718e5a0667b98ec416659a5b73ff593de5958581e9839e94b3a85561cf040c- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast