jasa.or.jp
Observed Aug 16, 2026, 08:25 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
Email byGoogle Workspace
Google WorkspaceSecured byLet's Encrypt
Let's Encrypt1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat jasa.or.jp actually stands on - every host below is a signed observation
jasa.or.jp
A / AAAA
160.16.133.134
unattributedserves the site
NS
01.dnsv.jp02.dnsv.jp03.dnsv.jp04.dnsv.jp
dnsv.jpanswers its DNS
MX
alt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.com+1 more
Google Workspacereceives its email
TLS
jasa.or.jp
Let's Encryptissued its certificate
DNS Records
A 1
160.16.133.134
MX 5
5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com1aspmx.l.google.com10aspmx2.googlemail.com10aspmx3.googlemail.com
TXT 1
v=spf1 include:_spf.google.com +ip4:202.208.196.167 +ip4:133.167.108.182 include:spf.curumeru.jp ~all
NS 4
01.dnsv.jp02.dnsv.jp03.dnsv.jp04.dnsv.jp
SOA 1
01.dnsv.jp hostmaster.dnsv.jp
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
jasa.or.jp |
C=US, O=Let's Encrypt, CN=YR2 | Fri, 09 Oct 2026 17:12:24 +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 (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_de1ff56b44eb44dc- Output Hash
1cdf2bf2a69c934943f62eb5c28cbc74d9924a1f9c096da5c555b441e60b11ab- Signature
ed25519:8feedcfca969da1bc67f5efe50f62ef82f0dd664682d8ec65ab5d34f50226bfd3d460139493f0b42232a1f692be080f0477335cb6c9911cea74f19069e8e6501- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast