redcross.ac.jp

Observed Jul 28, 2026, 09:43 UTC (7h 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

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesZoom

1 subdomain · majestic

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

INFRASTRUCTURE MAPwhat redcross.ac.jp actually stands on - every host below is a signed observation

redcross.ac.jp

A / AAAA

183.90.231.16

unattributedserves the site

ns020-nbctpqnqm0asp9re.n.d-53.netns020-nbctpqnqm0asp9re.n.d-53.infons020-nbctpqnqm0asp9re.n.d-53.jp

d-53.net + d-53.info + moreanswers its DNS

redcross-ac-jp.mail.protection.outlook.com

Microsoft 365receives its email

TLS

www.redcross.ac.jp

Let's Encryptissued its certificate

DNS Records

A 1

183.90.231.16

MX 1

10redcross-ac-jp.mail.protection.outlook.com

TXT 4

v=spf1 include:spf.protection.outlook.com include:kairos3.com -all
adobe-idp-site-verification=0f88d46e330b1f4df6954cdd66568751f3cc86b8902a1b595b7274ba5b7e667a
MS=ms32158597
ZOOM_verify_YacmNRpATPKtJPeWJMFSrg

NS 3

ns020-nbctpqnqm0asp9re.n.d-53.net
ns020-nbctpqnqm0asp9re.n.d-53.info
ns020-nbctpqnqm0asp9re.n.d-53.jp

SOA 1

ns000.d-53.net dns-managers.iij.ad.jp

TLS Certificates (3)

Common Name	Issuer	Expires
`www.redcross.ac.jp`	C=US, O=Let's Encrypt, CN=YR1	Tue, 01 Sep 2026 03:28:41 +0000
`YR1`	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 (1)

www.redcross.ac.jp

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

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

Ed25519 Receipt

Receipt ID: rcpt_b2bca70646da5da9
Output Hash: b2266e835bcfbfcc54fa19b24e882c4208efcb7c4e7caffa9c7bf2606aa2ff73
Signature: ed25519:5fd3e3c5ef7210c3b6febc2ccfbb2a311be5b66a09d0dfdbb8f02616f808a19d24a4ab82d76928d0bddc1e82f59d29b161528b27bc0c2ed103bc8c506833f40e
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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