cas.cn

Observed Jul 18, 2026, 12:27 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onComputer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)

Secured byChina Financial Certification Authority

IPv6 · push_legacy

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat cas.cn actually stands on - every host below is a signed observation

cas.cn

A / AAAA

159.226.242.612400:dd01:1017:1000::9fe2:f23d

Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)serves the site

ns3.cstnet.cnns4.cstnet.cn

cstnet.cnanswers its DNS

mx.cstnet.cn

cstnet.cnreceives its email

TLS

*.cas.cn

China Financial Certification Authorityissued its certificate

DNS Records

A 1

159.226.242.61

AAAA 1

2400:dd01:1017:1000::9fe2:f23d

MX 1

5mx.cstnet.cn

TXT 2

v=spf1 include:spf.mail.cstnet.cn -all
v=DMARC1; p=quarantine; rua=mailto:dmarc-report@cstnet.cn; ruf=mailto:dmarc-report@cstnet.cn

NS 2

ns3.cstnet.cn
ns4.cstnet.cn

SOA 1

ns1.cdns.cn mail.cnnic.cn

TLS Certificates (3)

Common Name	Issuer	Expires
`*.cas.cn`	C=CN, O=China Financial Certification Authority, CN=CFCA OV OCA	Fri, 18 Dec 2026 09:19:40 +0000
`CFCA OV OCA`	C=CN, O=China Financial Certification Authority, CN=CFCA EV ROOT	Tue, 25 Dec 2029 02:02:56 +0000
`CFCA EV ROOT`	C=CN, O=China Financial Certification Authority, CN=CFCA EV ROOT	Mon, 31 Dec 2029 03:07:01 +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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for cas.cn. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/cas.cn">
  <img src="https://domaindrift.io/badge/cas.cn.svg"
       width="300" height="64" alt="DomainDrift signed observations for cas.cn">
</a>

Ed25519 Receipt

Receipt ID: 7e3f9db5-b63f-4912-888b-46f25b3641ca
Output Hash: d61f5846a2fd95f92d6aeff00b14bd0176a26ce14e3ebeca11e7be09dadd7768
Signature: ed25519:17848c4a2fd95589d06efa5f00f2511a0dbaa00a7c246ddf0ce13ab4d5383498f5a02cf931f63e630370b06f09428881514d88d39085051e9c7b10e30d520503
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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