urbanbrain.jp
Observed Aug 2, 2026, 10:15 UTC (2h 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
Secured byLet's Encrypt
domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat urbanbrain.jp actually stands on - every host below is a signed observation
urbanbrain.jp
A / AAAA
202.221.241.123
unattributedserves the site
NS
dns1.jadm.moedns2.jadm.moe
jadm.moeanswers its DNS
MX
mx.urbanbrain.jp
urbanbrain.jpreceives its email
TLS
*.urbanbrain.jp
Let's Encryptissued its certificate
DNS Records
A 1
202.221.241.123
MX 1
10mx.urbanbrain.jp
TXT 1
v=spf1 mx include:_spf.interlink.ad.jp ~all
NS 2
dns1.jadm.moedns2.jadm.moe
SOA 1
dns1.jadm.moe root.jadm.moe
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
*.urbanbrain.jp |
C=US, O=Let's Encrypt, CN=YR2 | Mon, 19 Oct 2026 00:06:10 +0000 |
YR2 |
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 (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 receiptEd25519 Receipt
- Receipt ID
rcpt_c636df8ad6ecc2eb- Output Hash
060c9197799313dbce16d167e03c0ea9a62efd232ebe4b5fc7eaea64a51df5d2- Signature
ed25519:85127217524a15b0c884beca56a0cdc2bd1a083070e45cdf3d7909708a8e18dfbea0632642cf9ebb9292b6fb29947ccaa04518a428f47bc753476185be00d902- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast