drquynh.com

Observed Jul 28, 2026, 07:56 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

Secured byLet's Encrypt

Also usesGoogle Search Console

1 subdomain · majestic

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

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

drquynh.com

A / AAAA

103.28.36.66

unattributedserves the site

ns4.zonedns.vnns2.zonedns.vnns3.zonedns.vnns1.zonedns.vn

zonedns.vnanswers its DNS

TLS

drquynh.com

Let's Encryptissued its certificate

DNS Records

A 1

103.28.36.66

TXT 1

google-site-verification=Sa178Wt6XgwmfLHLF0fK1x7rtG2OlSL0nJvPbhWJ1YY

NS 4

ns4.zonedns.vn
ns2.zonedns.vn
ns3.zonedns.vn
ns1.zonedns.vn

SOA 1

ns1.zonedns.vn root.drquynh.com

TLS Certificates (3)

Common Name	Issuer	Expires
`drquynh.com`	C=US, O=Let's Encrypt, CN=YR2	Sun, 04 Oct 2026 01:42:34 +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 (1)

mail.drquynh.com

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 drquynh.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_901dd191c8ecd735
Output Hash: ad7a9966c7f1a4be78556e905308d5721cb5b24973e0bd3d1facdf26d52f496a
Signature: ed25519:2b7399876e235d8b6307d2e8182cc576582ee9baa1f2283be5d261725ba916591bfd81d64dcb90a1de78ee8111603c3ddab98f8fe91c7ba5694bb3133a5aaf00
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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