usio.co.jp
Observed Aug 2, 2026, 18:55 UTC (17h 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.
Up right now
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesGoogle Search Console
1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat usio.co.jp actually stands on - every host below is a signed observation
usio.co.jp
A / AAAA
219.94.163.89
unattributedserves the site
NS
ns6-tk02.ocn.ad.jpns6-tk01.ocn.ad.jp
ad.jpanswers its DNS
MX
ASPMX.L.GOOGLE.COMALT3.ASPMX.L.GOOGLE.COMALT1.ASPMX.L.GOOGLE.COMALT2.ASPMX.L.GOOGLE.COM+1 more
Google Workspacereceives its email
TLS
usio.co.jp
Let's Encryptissued its certificate
DNS Records
A 1
219.94.163.89
MX 5
1ASPMX.L.GOOGLE.COM10ALT3.ASPMX.L.GOOGLE.COM5ALT1.ASPMX.L.GOOGLE.COM5ALT2.ASPMX.L.GOOGLE.COM10ALT4.ASPMX.L.GOOGLE.COM
TXT 2
google-site-verification=_kn8bOiIjuA7vdaEuanESZy1v65w0lGyGG7tvXyjMcQv=spf1 include:_spf.google.com include:spf-bma.mpme.jp ~all
NS 2
ns6-tk02.ocn.ad.jpns6-tk01.ocn.ad.jp
SOA 1
ns6-tk01.ocn.ad.jp root.ocn.ad.jp
DMARC_RECORDS 1
v=DMARC1; p=none; rua=mailto:rua-mpse@mpub.ne.jp
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
usio.co.jp |
C=US, O=Let's Encrypt, CN=YR1 | Sat, 05 Sep 2026 22:39:35 +0000 |
YR1 |
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)
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 receiptEd25519 Receipt
- Receipt ID
rcpt_c5d9652782d023d0- Output Hash
2bfa8bf5e338d1c9784c36bc7a34028c7d40e3e6b7bfee3158745356179e2b2c- Signature
ed25519:00eea5a9da1cf4f0355e303343f3d4104dc38ee27d81394aabbf8f7615a04087f0843728a41633726e7c2fbd6b4e9e741eb34d79136cdf14b2e659ef77b9be04- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast