judo.or.jp
Observed Aug 16, 2026, 12:25 UTC (22h 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
Let's Encrypt1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for judo.or.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 judo.or.jp actually stands on - every host below is a signed observation
judo.or.jp
A / AAAA
183.181.82.77
unattributedserves the site
NS
dns2.plala.or.jpdns1.plala.or.jp
or.jpanswers its DNS
MX
mail.judo.or.jp
or.jpreceives its email
TLS
www.judo.or.jp
Let's Encryptissued its certificate
DNS Records
A 1
183.181.82.77
MX 1
100mail.judo.or.jp
TXT 1
v=spf1 include:fmx.etius.jp +ip4:140.227.14.2/32 +ip4:140.227.15.225/32 +ip4:140.227.15.2/32 -all
NS 2
dns2.plala.or.jpdns1.plala.or.jp
SOA 1
dns1.plala.or.jp postmaster.plala.or.jp
DMARC_RECORDS 1
v=DMARC1; p=none;
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.judo.or.jp |
C=US, O=Let's Encrypt, CN=YR2 | Wed, 28 Oct 2026 11:03:09 +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_6a50da822d926cc0- Output Hash
2cb426eeb22ebc1a99bf4cfc472dc9b85add13d198c22ae6903bcdfb7beb6f9b- Signature
ed25519:2bf5c56ee2e3fec372c4a4ac5f5d02a21a1213d23d5689cbcf68e7352b0176f2a4674db687a52cba53e6a105a6e04dc6e374f3c0085887c893e4bfaac0fc4507- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast