duel.co.jp

Observed Jul 25, 2026, 12:44 UTC (6d 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.

Verify this receipt yourself + Watch this domain

Up right now

Secured byLet's Encrypt

5 subdomains · tranco

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat duel.co.jp actually stands on - every host below is a signed observation

duel.co.jp

A / AAAA

157.7.189.71

unattributedserves the site

heather.ns.cloudflare.comzeus.ns.cloudflare.com

cloudflare.comanswers its DNS

mx-proxy501.heteml.jpmx-proxy502.heteml.jp

heteml.jpreceives its email

TLS

duel.co.jp

Let's Encryptissued its certificate

DNS Records

A 1

157.7.189.71

MX 2

10mx-proxy501.heteml.jp
20mx-proxy502.heteml.jp

TXT 2

v=spf1 include:_spf.heteml.jp include:spf.protection.outlook.com ~all
v=DMARC1; p=none;

NS 2

heather.ns.cloudflare.com
zeus.ns.cloudflare.com

SOA 1

heather.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`duel.co.jp`	C=US, O=Let's Encrypt, CN=YR2	Tue, 13 Oct 2026 09:35:31 +0000
`YR2`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (5)

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 duel.co.jp. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_25cb325ff35533e5
Output Hash: 7b99f4b80f6f40c6c5a7d5f02297e21c41c6212184c7d7b24bcf5f95cf3b5f09
Signature: ed25519:728419d96f758743912d20d8b0452d25b56c96591fac07389a0fe22c9ab58e648c14240274f9079be5af78169c0ad14b9e526cdc8d38b04b0ee05f09d2e1d70e
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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