jwrc.or.jp
Observed Aug 16, 2026, 16:42 UTC (1h 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
Microsoft 365Secured byCybertrust Japan Co.
1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat jwrc.or.jp actually stands on - every host below is a signed observation
jwrc.or.jp
A / AAAA
157.205.40.90
unattributedserves the site
NS
skydns11.otsuka-office365.jpskydns12.otsuka-office365.jpskydns13.otsuka-office365.jp
otsuka-office365.jpanswers its DNS
MX
jwrc-or-jp.mail.protection.outlook.com
Microsoft 365receives its email
TLS
www.jwrc.or.jp
Cybertrust Japan Co.issued its certificate
DNS Records
A 1
157.205.40.90
MX 1
0jwrc-or-jp.mail.protection.outlook.com
TXT 1
v=spf1 a:mta01.aics.ad.jp a:mta02.aics.ad.jp ip4:221.241.47.42 include:spf.protection.outlook.com include:spf.alpha-plt.jp ~all
NS 3
skydns11.otsuka-office365.jpskydns12.otsuka-office365.jpskydns13.otsuka-office365.jp
SOA 1
skydns99.otsuka-office365.jp hostmaster.otsuka-office365.jp
TLS Certificates (2)
| Common Name | Issuer | Expires |
|---|---|---|
www.jwrc.or.jp |
C=JP, O=Cybertrust Japan Co., Ltd., CN=Cybertrust Japan SureServer EV CA G3 | Sun, 28 Feb 2027 14:59:00 +0000 |
Cybertrust Japan SureServer EV CA G3 |
C=JP, O=SECOM Trust Systems CO.,LTD., 2.5.4.11=Security Communication RootCA2 | Tue, 29 May 2029 05:00:39 +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_d35859dd57faed8e- Output Hash
aa0b5ba1750747d094ff990f9060adbadcaa819a87b0c881c65958382e48729b- Signature
ed25519:1cd9792e840a95b731a14d4c9909fad2aa4f8708f1989b29cf99b4533c4f1c033fcde37cdca1375e04684aa8008c2228addb9b9a1ed06fb6499233ac6aceb803- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast