nihon-u.ac.jp
Observed Jul 22, 2026, 01:09 UTC (18h 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
Runs onGoogle
Email byGoogle Workspace
Secured bySECOM Trust Systems Co.
Also usesGoogle Search Console
IPv6 · 3 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat nihon-u.ac.jp actually stands on - every host below is a signed observation
nihon-u.ac.jp
A / AAAA
34.95.124.1732600:1901:0:6a1c::
Googleserves the site
NS
dns-x.sinet.ad.jpns007-zydu3gprqr7eyh2s.z.d-53.jpns007-zydu3gprqr7eyh2s.z.d-53.netns007-zydu3gprqr7eyh2s.z.d-53.info
ad.jp + d-53.jp + moreanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
www.nihon-u.ac.jp
SECOM Trust Systems Co.issued its certificate
DNS Records
A 1
34.95.124.173
AAAA 1
2600:1901:0:6a1c::
MX 5
1aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com
TXT 6
apple-domain-verification=O0zzWzVYRObs4WF3google-site-verification=M1YAiMi3sG_4pJbxFrChJ1B14_WOEQfhuVaXFgadxW8google-site-verification=e-V4-uT_BwYhj0snR1hbSySFe0APSRiPRgee1tQCMigadobe-idp-site-verification=9943308136e4952be2fa5562f529fe8fc038c09cacfe218a3d1c0f170a626b73v=spf1 ip4:133.43.0.0/16 ip6:2001:df6:8000::/48 include:_spf.google.com include:amazonses.com include:spf.securemx.jp include:spf.curumeru.jp include:_spf.activegate-ss.jp include:mail.ma-jin.jp include:spf.protection.outlook.com -allv=DMARC1; p=quarantine; sp=none; rua=mailto:postmaster+rua@nihon-u.ac.jp; ruf=mailto:postmaster+ruf@nihon-u.ac.jp;
NS 4
dns-x.sinet.ad.jpns007-zydu3gprqr7eyh2s.z.d-53.jpns007-zydu3gprqr7eyh2s.z.d-53.netns007-zydu3gprqr7eyh2s.z.d-53.info
SOA 1
ns.nihon-u.ac.jp hostmaster.nihon-u.ac.jp
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.nihon-u.ac.jp |
C=JP, O=SECOM Trust Systems Co., Ltd., CN=NII Open Domain CA - G8 RSA | Sat, 03 Apr 2027 08:05:04 +0000 |
NII Open Domain CA - G8 RSA |
C=JP, O=SECOM Trust Systems Co., Ltd., CN=SECOM TLS RSA Root CA 2024 | Tue, 21 Aug 2040 00:00:00 +0000 |
SECOM TLS RSA Root CA 2024 |
C=JP, O=SECOM Trust Systems CO.,LTD., 2.5.4.11=Security Communication RootCA2 | Tue, 29 May 2029 05:00:39 +0000 |
Subdomains (3)
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_41b167b2177732ea- Output Hash
c6fe3846afc0a05296126021d34e841417d1e847a4f7e2763148f6586365068b- Signature
ed25519:6c4f15e99354983e4504ebbb8042ba408102f9c15ee511eefb7dc599bf6624ec962a8c18cd276885dc40a41f666da8965d4cbd5b756e530f2d395e3a67d7f105- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast