alpha-note.co.jp
Observed Jul 23, 2026, 12:33 UTC (1d 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 byMicrosoft 365
Secured byLet's Encrypt
Also usesGoogle Search Console
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat alpha-note.co.jp actually stands on - every host below is a signed observation
alpha-note.co.jp
A / AAAA
183.181.98.39
unattributedserves the site
NS
ns2.xserver.jpns1.xserver.jpns5.xserver.jpns3.xserver.jp+1 more
xserver.jpanswers its DNS
MX
alphanote-co-jp01c.mail.protection.outlook.com
Microsoft 365receives its email
TLS
www.alpha-note.co.jp
Let's Encryptissued its certificate
DNS Records
A 1
183.181.98.39
MX 1
0alphanote-co-jp01c.mail.protection.outlook.com
TXT 4
google-site-verification=CaftLJKVE9LBEmUknWvf0SZTQC_QHoC1-91pKoQQGwoMS=ms98871037v=spf1 +ip4:59.106.8.27 +ip4:153.126.155.29 +ip4:153.126.208.119 +ip4:198.144.175.104 include:spf.satorimail.net include:spf.protection.outlook.com include:spf.sender.xserver.jp ~allv=DMARC1; p=none; rua=mailto:dmarc-reports@alpha-note.co.jp; ruf=mailto:dmarc-reports@alij.ne.jp; fo=1; pct=100; adkim=r; aspf=r
NS 5
ns2.xserver.jpns1.xserver.jpns5.xserver.jpns3.xserver.jpns4.xserver.jp
SOA 1
ns1.xserver.jp root.xserver.jp
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.alpha-note.co.jp |
C=US, O=Let's Encrypt, CN=YR1 | Mon, 19 Oct 2026 00:24:02 +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_a38e9ab2b3b2d2af- Output Hash
a3f90143ebf577211e605ad1b5d59a51f9b296a057f50e12643d0cf752458b59- Signature
ed25519:0adc3fc3fcdb276bc73d8180c0822c52cd0156eaa8e45c5320a355ee51e101f0890f9114d388f0eaa51e4e75a8fd6a17012e8f7bd40870eb67f58996387c5202- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast