robocup.or.jp
Observed Jul 26, 2026, 15:32 UTC (5d 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
1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat robocup.or.jp actually stands on - every host below is a signed observation
robocup.or.jp
A / AAAA
112.78.125.79
unattributedserves the site
NS
ns1.dns.ne.jpns2.dns.ne.jp
ne.jpanswers its DNS
MX
robocup.or.jp
or.jpreceives its email
TLS
robocup.or.jp
Let's Encryptissued its certificate
DNS Records
A 1
112.78.125.79
MX 1
10robocup.or.jp
TXT 1
v=spf1 a:www619b.sakura.ne.jp mx ~all
NS 2
ns1.dns.ne.jpns2.dns.ne.jp
SOA 1
master.dns.ne.jp tech.sakura.ad.jp
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
robocup.or.jp |
C=US, O=Let's Encrypt, CN=YR1 | Sat, 03 Oct 2026 03:45:58 +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_9ec7825753498f30- Output Hash
2a85adae3371ac6d1558f9a3ad22b30df7a2fead94b843b0668d7e7b07462753- Signature
ed25519:5bf2489a44842ace579513ed6b9f869a91385c138b584abdd5a3f9299ed33f3bbc6f2e6f9b1d3be4eb98a6e45554a6da3f4099abf7bb2bcb82cfc298b0f92501- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast