zierer.com
Observed Aug 2, 2026, 08:27 UTC (11h 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
217.64.66.139
MX 4
20dgn02.cgsmx.net30deg02.cgsmx.net40dgn01.cgsmx.net10deg01.cgsmx.net
TXT 2
v=spf1 include:cgsmx.net include:spf.zierer.com -allMS=ms27249336
NS 5
ns2.ithnet.comns1.cgsmx.netns3.ithnet.comns.ithnet.comns2.cgsmx.net
SOA 1
ns.ithnet.com hostmaster.ithnet.com
CAA 1
issue "letsencrypt.org"
MCP_RECORDS 1
v=spf1 include:cgsmx.net include:spf.zierer.com -all
DMARC_RECORDS 1
v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc@cgsmx.net; ruf=mailto:dmarc@cgsmx.net
BIMI_RECORDS 1
v=spf1 include:cgsmx.net include:spf.zierer.com -all
MTA_STS_RECORDS 1
v=spf1 include:cgsmx.net include:spf.zierer.com -all
TLS Certificates (0)
None.
Subdomains (0)
None observed.
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 zierer.com. It updates itself. It attests a signed observation - not that the site is safe.
<a href="https://domaindrift.io/t/zierer.com">
<img src="https://domaindrift.io/badge/zierer.com.svg"
width="300" height="64" alt="DomainDrift signed observations for zierer.com">
</a>
Ed25519 Receipt
- Receipt ID
rcpt_b785fa2320be0d02- Output Hash
df934b50daa672f4fd5094ef1ef844ca7f6ae9806fbc53f539182a8f4e26c611- Signature
ed25519:eca9eb68cdec6d0a551348d345f2787334bbd2b2a6c11e336c2d9b226ae532f183cead263280d72e0a5d001cd1023c81dff9987a4d51afd34bc42118231f360a- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast