CONTINUOUS INTERNET TELEMETRY24H DRIFTat least 17,627 material changesacross 16,486+ domains · 24h to ~18h ago · a floor, 6h of 24 walkedNOW565 curated domains not reachablelast probe, steadySITE ERRORS34,269 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 155,387 sites429 rate-limit / 403 bot-block, a posture signal

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.jp
  • ns2.dns.ne.jp

SOA 1

  • master.dns.ne.jp tech.sakura.ad.jp

TLS Certificates (3)

Common NameIssuerExpires
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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for duke.co.jp. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for duke.co.jp <a href="https://domaindrift.io/t/duke.co.jp"> <img src="https://domaindrift.io/badge/duke.co.jp.svg" width="300" height="64" alt="DomainDrift signed observations for duke.co.jp"> </a>

Ed25519 Receipt

Receipt ID
rcpt_f4da5f72e942a53f
Output Hash
a1a9823f4d010cc30c205bd0abf9d2c6996e4dff9eab70bcb143ba8f2011195f
Signature
ed25519:ada4df039c29df76a2ae1fff4a496135779bb509a05e361d480d25530dba6700376ee617ed1fceb40e0464b00623ef6c14e7a76a3b347863ccf0bd18b231e10f
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser