river.or.jp

Observed Aug 10, 2026, 11:07 UTC (4d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of river.or.jp was taken 4d ago

river.or.jp is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting river.or.jp 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 river.or.jp Watching a domain needs a DRM3 account. The reading above stays free and public either way.

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Up right now

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesSeculio

1 subdomain · majestic

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

INFRASTRUCTURE MAPwhat river.or.jp actually stands on - every host below is a signed observation

river.or.jp

A / AAAA

85.131.221.32

unattributedserves the site

ns014-4n55jl3umqc4nbgj.4.d-53.jpns014-4n55jl3umqc4nbgj.4.d-53.netns014-4n55jl3umqc4nbgj.4.d-53.info

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

river-or-jp.mail.protection.outlook.com

Microsoft 365receives its email

TLS

river.or.jp

Let's Encryptissued its certificate

DNS Records

A 1

85.131.221.32

MX 1

0river-or-jp.mail.protection.outlook.com

TXT 2

seculio-domain-verification-code=5193db0b93cf54ef2e6c83db2b4188fa694f957731d32264a6995e29c7278af1
v=spf1 include:mdalthea.maildealer.jp include:spf.mta.hdems.com include:spf.protection.outlook.com include:frics-mail.sakura.ne.jp +ip4:133.242.25.172 +ip4:210.148.230.0/25 +ip4:202.221.139.130/28 ~all

NS 3

ns014-4n55jl3umqc4nbgj.4.d-53.jp
ns014-4n55jl3umqc4nbgj.4.d-53.net
ns014-4n55jl3umqc4nbgj.4.d-53.info

SOA 1

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

DMARC_RECORDS 1

v=DMARC1; p=quarantine; rua=mailto:dmarc-rua@river.or.jp

TLS Certificates (3)

Common Name	Issuer	Expires
`river.or.jp`	C=US, O=Let's Encrypt, CN=YR2	Tue, 13 Oct 2026 06:25:23 +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 (1)

www.river.or.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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID: rcpt_44fe1c769fd76c44
Output Hash: d19d379a984530013314963ec01744fec5dd183f6748ffce032d13ba618b5cd1
Signature: ed25519:40d3ac29807d0cc1f34ba17440cf2fac68cee30daed6b7dd529eea825611d04818940548125798165af13c822c5a474c239ef09886f0a39229ddd9d8f7446d0d
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/river.or.jp