mediknow.io
Observed Aug 16, 2026, 13:58 UTC (8h 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.
Google Workspace
Amazon
Google Search ConsoleDomainDrift 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 2
18.198.252.2863.176.34.171
MX 5
1aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com
TXT 3
brevo-code:96cfe9c585aa9548c4b9d087fbd8808dv=spf1 include:_spf.google.com include:spf.brevo.com -allgoogle-site-verification=omfYoXK9f42BR863v2cgdw2U295aZqWm_vMUKt7rjbY
NS 4
ns-47.awsdns-05.comns-741.awsdns-28.netns-1259.awsdns-29.orgns-2002.awsdns-58.co.uk
SOA 1
ns-47.awsdns-05.com awsdns-hostmaster.amazon.com
MCP_RECORDS 1
v=spf1 -all
DMARC_RECORDS 1
v=DMARC1; p=reject; rua=mailto:rua@dmarc.brevo.com,mailto:dmarc+aggregated@reports.nicmanager.net;
BIMI_RECORDS 1
v=spf1 -all
MTA_STS_RECORDS 1
v=STSv1; id=1724330761
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
mediknow.io |
C=US, O=Amazon, CN=Amazon ECDSA 256 M01 | Sat, 12 Dec 2026 23:59:59 +0000 |
Amazon ECDSA 256 M01 |
C=US, O=Amazon, CN=Amazon Root CA 3 | Fri, 23 Aug 2030 22:31:46 +0000 |
Amazon Root CA 3 |
C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2 | Thu, 31 Dec 2037 01:00:00 +0000 |
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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_93ab98f725e263c7- Output Hash
23ac80efd81bf40f82e676e7bcf0fa5ef8ea95a91aba2b05282e78a9fe7279d7- Signature
ed25519:1941547a9edb80fbbbf72db73cc6cc9828173eddf0a843b8eac1ee020580019862499fb34e07ffe938449c260afb1bd4d1e910dacdaf4b2a865ac7e327dd7707- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast