doorkeeper.jp

Observed Jul 24, 2026, 21:13 UTC (7d 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 byGoogle Workspace

Secured byLet's Encrypt

Also usesGoogle Search Console

tranco

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

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

doorkeeper.jp

A / AAAA

66.71.205.0

unattributedserves the site

ns1.dnsimple.comns2.dnsimple.comns3.dnsimple.comns4.dnsimple.com

dnsimple.comanswers its DNS

aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+2 more

Google Workspacereceives its email

TLS

doorkeeper.jp

Let's Encryptissued its certificate

DNS Records

A 1

66.71.205.0

MX 6

1aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com
10aspmx2.googlemail.com
10aspmx3.googlemail.com
20smtp.us-west-1.mailertogo.net

TXT 6

v=spf1 ip4:54.183.3.213 ip4:54.193.35.207 include:_spf.google.com include:helpscoutemail.com include:_spf.mailertogo.net ~all
google-site-verification=Fjn4Ddt11VryntCsj1Y7EPmrwpvfM1hkjfdgXaq1v5Y
google-site-verification=_FZ40Qg5iwD_83dbwVxRYpknlyKdszIrAojV30oo7rg
google-site-verification=n08TxCqIZCw32CS53fp6NAhgRunWPwpkOIWDtCw_RkE
google-site-verification=BM49s-neNzqRLA5TM4aXRUyT_G5NoDttTCDOj_RgLIQ
v=DMARC1; p=quarantine; pct=100; rua=mailto:re+vmjkusqgbpb@dmarc.postmarkapp.com,mailto:dmarcreports@mailertogo.com; aspf=r;

NS 4

ns1.dnsimple.com
ns2.dnsimple.com
ns3.dnsimple.com
ns4.dnsimple.com

SOA 1

ns1.dnsimple.com admin.dnsimple.com

TLS Certificates (2)

Common Name	Issuer	Expires
`doorkeeper.jp`	C=US, O=Let's Encrypt, CN=R12	Tue, 25 Aug 2026 06:45:22 +0000
`R12`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Fri, 12 Mar 2027 23:59:59 +0000

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

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

Ed25519 Receipt

Receipt ID: rcpt_d3547b8bdd371c47
Output Hash: c7bf3ad2fcdfe775a830b786f60833fc56563e2b6de590a4ecd95cf099ace511
Signature: ed25519:278ae7b341f1b13d64d6e48e450e36a6be47ebbd4da2dad78109c9c1564ee3d959209a3411631e1b74660e5e1e971315d3aaae7875b84d274f4af04ea6b3210a
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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