duihua.org

Observed Jul 26, 2026, 00:58 UTC (6d 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

Email byGoogle Workspace

Secured byLet's Encrypt

Also usesGoogle Search Console

2 subdomains · majestic

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

INFRASTRUCTURE MAPwhat duihua.org actually stands on - every host below is a signed observation

duihua.org

A / AAAA

44.193.86.179

unattributedserves the site

beth.ns.cloudflare.combob.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+2 more

Google Workspacereceives its email

TLS

duihua.org

Let's Encryptissued its certificate

DNS Records

A 1

44.193.86.179

MX 6

1aspmx.l.google.com
10alt3.aspmx.l.google.com
10alt4.aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com
5aspmx2.googlemail.com

TXT 4

MS=ms35457722
google-site-verification=-JNyTscNAkAfVVBEVG4QKUC_6ybs6TSSOjSIqGNXJAQ
v=spf1 include:_spf.google.com +include:outboundmail.blackbaud.net +include:ne16.com include:spf.mandrillapp.com ~all
v=DMARC1; p=quarantine; rua=mailto:dmarcrpt@duihua.org; pct=100; adkim=r; aspf=r

NS 2

beth.ns.cloudflare.com
bob.ns.cloudflare.com

SOA 1

beth.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`duihua.org`	C=US, O=Let's Encrypt, CN=YR2	Sun, 30 Aug 2026 06:19:50 +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 (2)

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 duihua.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_874a67a3ce8d490b
Output Hash: cd12afeb5b78facdef80f4395827f0f3db24b74393243c18313f426a79a2aaba
Signature: ed25519:1536b99a2274a9eb807bdb4629504f47c10a7c8650099fc1e7a71e4b361b9b99589f9b2701f67572e118559ea94ba3ddd6975cc7a76b64a735ce2593237a4b0f
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/duihua.org