blueacademy.jp
Observed Aug 16, 2026, 17:17 UTC (9h 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
Runs onGMO Internet
Email byGoogle Workspace
Google WorkspaceSecured byLet's Encrypt
Let's EncryptAlso usesGoogle Search Console
Google Search Console1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for blueacademy.jp in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.
INFRASTRUCTURE MAPwhat blueacademy.jp actually stands on - every host below is a signed observation
blueacademy.jp
A / AAAA
157.120.209.92
GMO Internetserves the site
NS
ns-a1.conoha.ions-a2.conoha.ions-a3.conoha.io
conoha.ioanswers its DNS
MX
smtp.google.com
Google Workspacereceives its email
TLS
blueacademy.jp
Let's Encryptissued its certificate
DNS Records
A 1
157.120.209.92
MX 1
1smtp.google.com
TXT 4
google-site-verification=drVp2TvJGfxFgRQJs6aRNUZCv3vE41hxxroU7wZ9jFQgoogle-site-verification=Vu7uvqBM42MCB1d2IltxZoq9u3ArI42XBbx0wvfbyx4google-site-verification=enRWOgppsOF6mvb8erkmZt_gh2YkqWuvg8tJiZDsANEgoogle-site-verification=VZ-4vIg2lOECxvPHMim2I7BPJ9lPA1Vvr5izwOp3SBA
NS 3
ns-a1.conoha.ions-a2.conoha.ions-a3.conoha.io
SOA 1
ns-a1.conoha.io postmaster.blueacademy.jp
DMARC_RECORDS 1
v=DMARC1; p=none;
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
blueacademy.jp |
C=US, O=Let's Encrypt, CN=YR1 | Sat, 12 Sep 2026 06:09:42 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_84f691852352b81b- Output Hash
3baff9915c64178b5046ba783e02de5d4c59ac718dd591d1a42a397cd0f27209- Signature
ed25519:fb68d17177968fb797c2293cb240c11f4cc3a152b57066ea75501409cef6cd46251c5336da3e89ce9ba3cb6ba60783c6048888a5ce7d9dd8f64e2896d3cd320d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast