sina.cn

Observed Jul 21, 2026, 20:08 UTC (1d 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.

Verify this receipt yourself + Watch this domain

Up right now

Runs on15F

Secured byDigiCert

1 subdomain · tranco_5k

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

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

sina.cn

A / AAAA

36.51.224.192

15Fserves the site

ns1.sina.com.cnns3.sina.com.cnns2.sina.com.cn

com.cnanswers its DNS

freemx1.sinamail.sina.com.cnfreemx3.sinamail.sina.com.cnfreemx2.sinamail.sina.com.cn

com.cnreceives its email

TLS

sina.com

DigiCertissued its certificate

DNS Records

A 1

36.51.224.192

MX 3

10freemx1.sinamail.sina.com.cn
10freemx3.sinamail.sina.com.cn
10freemx2.sinamail.sina.com.cn

TXT 2

v=spf1 include:spf.sinamail.sina.com.cn -all
v=DMARC1; p=none;

NS 3

ns1.sina.com.cn
ns3.sina.com.cn
ns2.sina.com.cn

SOA 1

ns1.sina.com.cn zhihao.staff.sina.com.cn

TLS Certificates (3)

Common Name	Issuer	Expires
`sina.com`	C=US, O=DigiCert, Inc., CN=GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1	Wed, 30 Dec 2026 23:59:59 +0000
`GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Tue, 14 Dec 2032 23:59:59 +0000
`DigiCert Global Root G2`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root CA	Sun, 09 Nov 2031 23:59:59 +0000

Subdomains (1)

cre.dp.sina.cn

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 sina.cn. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_201d3998849f92f1
Output Hash: 16395027a3a75b98794e6d5dacb7e7bdc8047bd3f907d1b4192b00dfce03fbf5
Signature: ed25519:dfc31c533efca2346ce75ca2d35894b94793fe2b0c2cb9c33f8daf8373c8803d267ea8148c53d5c22bd0fa8b2124382dae85500bcf3fe845facc2b6729009d0d
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/sina.cn