arika.co.jp

Observed Jul 25, 2026, 23:09 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 byMicrosoft 365

Secured byLet's Encrypt

1 subdomain · majestic

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

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

arika.co.jp

A / AAAA

221.249.121.238

unattributedserves the site

dns1.arika.co.jp

arika.co.jpanswers its DNS

arika-co-jp.mail.protection.outlook.com

Microsoft 365receives its email

TLS

www.arika.co.jp

Let's Encryptissued its certificate

DNS Records

A 1

221.249.121.238

MX 1

0arika-co-jp.mail.protection.outlook.com

TXT 2

MS=ms43426043
v=spf1 include:spf.protection.outlook.com -all

NS 1

dns1.arika.co.jp

SOA 1

dns1.arika.co.jp hostmaster.arika.co.jp

TLS Certificates (4)

Common Name	Issuer	Expires
`www.arika.co.jp`	C=US, O=Let's Encrypt, CN=YE1	Fri, 11 Sep 2026 16:10:01 +0000
`YE1`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

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

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

Ed25519 Receipt

Receipt ID: rcpt_e4382ad6f55934bd
Output Hash: b4ad11ce716cfe71adc180cb90b7ad23cb4dec0e5e5c4ecebdd91f5be449035b
Signature: ed25519:0e548344ee0235bd8e519f710914362513462fba15d02ffb6ccce329c86d2f495cc0456b0942ba9eb5aa948501bd266e6df61052d5791ef6cdea4b7e077d2503
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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