saishu.co.jp
Observed Aug 16, 2026, 15:09 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
Secured byLet's Encrypt
Let's EncryptIPv6 · 1 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 saishu.co.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 saishu.co.jp actually stands on - every host below is a signed observation
saishu.co.jp
A / AAAA
155.248.170.1702603:c021:8006:9c02:5d87:f173:5f95:9a35
2603serves the site
NS
ns2.p68.dns.oraclecloud.netns3.p68.dns.oraclecloud.netns4.p68.dns.oraclecloud.netns1.p68.dns.oraclecloud.net
oraclecloud.netanswers its DNS
MX
mail.saishu.co.jp
saishu.co.jpreceives its email
TLS
saishu.co.jp
Let's Encryptissued its certificate
DNS Records
A 1
155.248.170.170
AAAA 1
2603:c021:8006:9c02:5d87:f173:5f95:9a35
MX 1
10mail.saishu.co.jp
TXT 1
v=spf1 include:spf.no1-server25.com include:spf.no1-server28.com include:ap.rp.oracleemaildelivery.com -all
NS 4
ns2.p68.dns.oraclecloud.netns3.p68.dns.oraclecloud.netns4.p68.dns.oraclecloud.netns1.p68.dns.oraclecloud.net
SOA 1
ns1.p68.dns.oraclecloud.net hostmaster.saishu.co.jp
DMARC_RECORDS 1
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:no1dmarcreport@no1-server28.com; ruf=mailto:no1dmarcreport@no1-server28.com; fo=1
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
saishu.co.jp |
C=US, O=Let's Encrypt, CN=YR2 | Fri, 25 Sep 2026 00:18:42 +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_1225bb708d7395c8- Output Hash
06270852301a3c1429dba89305575bf324a2d2b4b9a559ebca261e96db935134- Signature
ed25519:2037f643a1cda70ac12cf2a11d3a22546bfe1b090886c1c56b922164fe2bfd56cf06b95247952233afae2314d7e7d1f4b24f05ee9a1106e3f9ee6f9284415602- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast