rfc.jp

Observed Jul 28, 2026, 09:45 UTC (5h 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

Not responding

Signed observation on record.

majestic

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

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

rfc.jp

A / AAAA

203.138.167.91

unattributedserves the site

ns01.inf-com01.jpns02.inf-com01.jpns03.inf-com01.jp

inf-com01.jpanswers its DNS

mail.rfc.jp

rfc.jpreceives its email

DNS Records

A 1

203.138.167.91

MX 1

10mail.rfc.jp

TXT 2

v=spf1 +mx +ip4:202.171.133.128/29 +ip4:203.138.167.91 -all
v=DMARC1; p=none;

NS 3

ns01.inf-com01.jp
ns02.inf-com01.jp
ns03.inf-com01.jp

SOA 1

ns01.inf-com01.jp system.inf.fukushima.fukushima.jp

TLS Certificates (0)

None.

Subdomains (0)

None observed.

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

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

Ed25519 Receipt

Receipt ID: rcpt_305895b8540ab332
Output Hash: e550dba5902b552045c53da7fcffa3a5e6d85f97891ab5467acbeaa79b50af93
Signature: ed25519:48a96ee42d4c6cacf0558a08644038903ec80f8707c5383f8e701f82a69fa1b8b539355934ca4f9ff183c2e16712cfbb659cc01a3852724d66c47c453fef1c04
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/rfc.jp