master-key.pl
Observed Aug 16, 2026, 07:38 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
89.161.155.109
MX 1
10master-key.pl
TXT 1
v=spf1 a mx ~all
NS 3
dns.home.pldns2.home.pldns3.home.pl
SOA 1
dns.home.pl admin.home.pl
MCP_RECORDS 1
v=spf1 a mx ~all
DMARC_RECORDS 1
v=spf1 a mx ~all
BIMI_RECORDS 1
v=spf1 a mx ~all
MTA_STS_RECORDS 1
v=spf1 a mx ~all
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
master-key.pl |
C=PL, O=home.pl S.A., CN=home pl DV TLS G2 R35 CA | Sun, 07 Feb 2027 00:00:00 +0000 |
home pl DV TLS G2 R35 CA |
C=PL, O=Asseco Data Systems S.A., 2.5.4.11=Certum Certification Authority, CN=Certum Trusted Root CA | Wed, 16 May 2035 07:45:35 +0000 |
Certum Trusted Root CA |
C=PL, O=Unizeto Technologies S.A., 2.5.4.11=Certum Certification Authority, CN=Certum Trusted Network CA | Tue, 19 Sep 2028 10:00:00 +0000 |
Certum Trusted Network CA |
C=PL, O=Unizeto Technologies S.A., 2.5.4.11=Certum Certification Authority, CN=Certum Trusted Network CA | Mon, 31 Dec 2029 12:07:37 +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_4ccb1965768b7de3- Output Hash
ce9b7370336373b139783fa3e7617fceed75f1ba69a8aeac32387e12c1b0efa9- Signature
ed25519:ea77e6316bb4f9012cc1e52c1e736b5192695d0a387efef177c84ba3bc8ed56a7c48e971400ffd62632760d9711258b965200bf1288757297edf0415c0b2050f- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast