duke.co.jp
Observed Jul 27, 2026, 09:32 UTC (4d 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.
Up right now
Secured byJapan Registry Services Co.
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat duke.co.jp actually stands on - every host below is a signed observation
duke.co.jp
A / AAAA
219.94.210.66
unattributedserves the site
NS
ns1.dns.ne.jpns2.dns.ne.jp
ne.jpanswers its DNS
MX
duke.co.jp
duke.co.jpreceives its email
TLS
duke.co.jp
Japan Registry Services Co.issued its certificate
DNS Records
A 1
219.94.210.66
MX 1
10duke.co.jp
TXT 1
v=spf1 a:www242b.sakura.ne.jp mx ~all
NS 2
ns1.dns.ne.jpns2.dns.ne.jp
SOA 1
master.dns.ne.jp tech.sakura.ad.jp
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
duke.co.jp |
C=JP, O=Japan Registry Services Co., Ltd., CN=JPRS Domain Validation Authority - G4 | Fri, 04 Sep 2026 14:59:59 +0000 |
JPRS Domain Validation Authority - G4 |
C=JP, O=SECOM Trust Systems CO.,LTD., 2.5.4.11=Security Communication RootCA2 | Tue, 29 May 2029 05:00:39 +0000 |
(no CN) |
C=JP, O=SECOM Trust Systems CO.,LTD., 2.5.4.11=Security Communication RootCA2 | Tue, 29 May 2029 05:00:39 +0000 |
Subdomains (1)
The proof
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_f4da5f72e942a53f- Output Hash
a1a9823f4d010cc30c205bd0abf9d2c6996e4dff9eab70bcb143ba8f2011195f- Signature
ed25519:ada4df039c29df76a2ae1fff4a496135779bb509a05e361d480d25530dba6700376ee617ed1fceb40e0464b00623ef6c14e7a76a3b347863ccf0bd18b231e10f- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast