zhihu.com

Observed 2026-07-18T12:21:49.551730100+00:00 (8m ago). Every field below was attested with an Ed25519 signature at scan time.

Guarded by a firewall

Runs onTencent Building

Secured byDigiCert

Registered withDNSPod, Inc.

Also usesGoogle Search Console

push_legacy

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

INFRASTRUCTURE MAPwhat zhihu.com actually stands on - every host below is a signed observation

zhihu.com

A / AAAA

43.135.83.2

Tencent Buildingserves the site

ns3.dnsv5.comns4.dnsv5.com

dnsv5.comanswers its DNS

mxbiz1.qq.commxbiz2.qq.com

qq.comreceives its email

TLS

*.zhihu.com

DigiCertissued its certificate

DNS Records

A 1

43.135.83.2

MX 2

5mxbiz1.qq.com
10mxbiz2.qq.com

TXT 6

3nsr8c3w7yg4bngn0z53wr22hm54s5q2
m5g7qjk31l5d1hkq6m3zvcf6lg2f0h16
v=spf1 include:spf.mail.qq.com -all
apple-domain-verification=0ABf57rqECBcCKb6
google-site-verification=WreyhhjBpv_EcWw27fGRsO7yz4sy_6oiT1HeoJfv1JQ
v=DMARC1; p=quarantine; rua=mailto:mailauth-reports@qq.com

NS 2

ns3.dnsv5.com
ns4.dnsv5.com

SOA 1

ns3.dnsv5.com enterprise3dnsadmin.dnspod.com

TLS Certificates (3)

Common Name	Issuer	Expires
`*.zhihu.com`	C=US, O=DigiCert, Inc., CN=GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1	Thu, 10 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 (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 zhihu.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 8877d16d-cd72-46fd-baf0-0c8e203a1bac
Output Hash: bafa0196fbd42c4762c268923e8ecce109fe9a3e05bff0339ace0367de8cfb49
Signature: ed25519:124f8e0b2f8e14a3999731a8af8b45ce503d9d16f0d1d431939277c493e25be16ad2a87cdcd9b8728c9f60a97db2dda85b3a85bb270c99b2bbb5de43107d3f0e
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/zhihu.com