mentors.co.kr
Observed Aug 11, 2026, 00:00 UTC (6d ago). Every field below was attested with an Ed25519 signature at scan time.
mentors.co.kr is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting mentors.co.kr 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 mentors.co.kr Watching a domain needs a DRM3 account. The reading above stays free and public either way.
SectigoDomainDrift 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
175.125.94.44
MX 3
10kr1-aspmx1.worksmobile.com20kr1-aspmx2.worksmobile.com30uwa64-027.cafe24.com
TXT 2
v=spf1 ip4:220.73.161.104 include:spf.worksmobile.com ~allworksmobile.certification.tnkjdnzqemuzfixspi.xlcun7h64tpwkt.fwyu43rbb
NS 4
ns2.cafe24.comns1.cafe24.comns.cafe24.comns0.cafe24.com
SOA 1
mentors.co.kr postmaster.mentors.co.kr
MCP_RECORDS 2
v=spf1 ip4:220.73.161.104 include:spf.worksmobile.com ~allworksmobile.certification.tnkjdnzqemuzfixspi.xlcun7h64tpwkt.fwyu43rbb
DMARC_RECORDS 2
worksmobile.certification.tnkjdnzqemuzfixspi.xlcun7h64tpwkt.fwyu43rbbv=spf1 ip4:220.73.161.104 include:spf.worksmobile.com ~all
BIMI_RECORDS 2
v=spf1 ip4:220.73.161.104 include:spf.worksmobile.com ~allworksmobile.certification.tnkjdnzqemuzfixspi.xlcun7h64tpwkt.fwyu43rbb
MTA_STS_RECORDS 2
worksmobile.certification.tnkjdnzqemuzfixspi.xlcun7h64tpwkt.fwyu43rbbv=spf1 ip4:220.73.161.104 include:spf.worksmobile.com ~all
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
mentors.co.kr |
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV R36 | Wed, 18 Nov 2026 23:59:59 +0000 |
Sectigo Public Server Authentication CA DV R36 |
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46 | Fri, 21 Mar 2036 23:59:59 +0000 |
Sectigo Public Server Authentication Root R46 |
C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority | Mon, 18 Jan 2038 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_bf385d94c7bf1a2f- Output Hash
52c6beba099e2c6af21e4e8d27ef3aae234f28f619ac1dc085f3eaf7fa4f12db- Signature
ed25519:b367320a751beef667c37d4e111c2ccd8fb2faa95416c350f0700e695ed7ff287aad208d9097fb4cff1029a0021f6f321345d1fc80a8ead1de0a90a5d4bad702- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast