recstu.co.jp

Observed Jul 25, 2026, 19:51 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

Guarded by a firewall

Runs onCloudflare

Email byGoogle (SPF sender)

Secured byGoogle Trust Services

Also usesGoogle Search Console

IPv6 · tranco

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

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

recstu.co.jp

A / AAAA

172.67.134.27104.21.6.32606:4700:3033::6815:6032606:4700:3035::ac43:861b

Cloudflareserves the site

ben.ns.cloudflare.comkeyla.ns.cloudflare.com

cloudflare.comanswers its DNS

mail.recstu.co.jpmail3.recstu.co.jpmail2.recstu.co.jp

Google (SPF sender)receives its email

TLS

recstu.co.jp

Google Trust Servicesissued its certificate

DNS Records

A 2

172.67.134.27
104.21.6.3

AAAA 2

2606:4700:3033::6815:603
2606:4700:3035::ac43:861b

MX 3

0mail.recstu.co.jp
100mail3.recstu.co.jp
50mail2.recstu.co.jp

TXT 3

google-site-verification=H0A5x9Ha7jyZ7G1OS2pHWAfEyo7ycNluIi-rcc_SpFE
v=spf1 +ip4:203.138.176.94 +ip4:112.78.117.182 +ip4:162.43.112.182 +ip4:203.138.176.105 +ip4:153.126.138.59 +ip6:2401:2500:102:3005:153:126:138:59 include:_spf.google.com -all
v=DMARC1; p=none

NS 2

ben.ns.cloudflare.com
keyla.ns.cloudflare.com

SOA 1

ben.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`recstu.co.jp`	C=US, O=Google Trust Services, CN=WE1	Thu, 22 Oct 2026 01:03:01 +0000
`WE1`	C=US, O=Google Trust Services LLC, CN=GTS Root R4	Tue, 20 Feb 2029 14:00:00 +0000
`GTS Root R4`	C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA	Fri, 28 Jan 2028 00:00:42 +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 recstu.co.jp. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_784aa99a8a37e962
Output Hash: c616b923deff4e008c72037e62473127a8d76487be8f1ef43c9973e3824bccc1
Signature: ed25519:dc10bbfb3ccb2940937d3971618d617cf2a783148d1f82f7278dad713430e9b76b5f42d992d5c536a27b91015f3b87e05f14ea4bdd193c10e8fc1e28ba43ee0c
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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