zutool.jp
Observed Jul 25, 2026, 06:08 UTC (8d 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 byAmazon
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zutool.jp actually stands on - every host below is a signed observation
zutool.jp
A / AAAA
3.112.121.24035.76.68.219
unattributedserves the site
NS
ns-1473.awsdns-56.orgns-1878.awsdns-42.co.ukns-463.awsdns-57.comns-527.awsdns-01.net
awsdns-56.org + awsdns-42.co.uk + moreanswers its DNS
TLS
zutool.jp
Amazonissued its certificate
DNS Records
A 2
3.112.121.24035.76.68.219
TXT 1
2IQVnbnkW2qvurP5l9c2eECjbKywQM
NS 4
ns-1473.awsdns-56.orgns-1878.awsdns-42.co.ukns-463.awsdns-57.comns-527.awsdns-01.net
SOA 1
ns-527.awsdns-01.net awsdns-hostmaster.amazon.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
zutool.jp |
C=US, O=Amazon, CN=Amazon RSA 2048 M01 | Fri, 18 Sep 2026 23:59:59 +0000 |
Amazon RSA 2048 M01 |
C=US, O=Amazon, CN=Amazon Root CA 1 | Fri, 23 Aug 2030 22:21:28 +0000 |
Amazon Root CA 1 |
C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2 | Thu, 31 Dec 2037 01:00:00 +0000 |
Subdomains (0)
None observed.
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_fb49f71c94df3a3b- Output Hash
a417c61d658cbc19ce3df4ccf154259a90a2df89626cc33710d727dcfeba938a- Signature
ed25519:28b5f7e3b6089179034a4952a78b54c6c2cd608e9dd75c4ca99311744d59a98747a64ce094272aaa634feccc839897eb6a0972fff10126892b0909c12c448b00- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast