andrewchen.com

Observed Jul 24, 2026, 13:57 UTC (6h 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.

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Up right now

Email byMicrosoft 365

Secured byLet's Encrypt

tranco

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

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

andrewchen.com

A / AAAA

104.196.19.14

unattributedserves the site

ns41.domaincontrol.comns42.domaincontrol.com

domaincontrol.comanswers its DNS

andrewchen-com.mail.protection.outlook.com

Microsoft 365receives its email

TLS

andrewchen.com

Let's Encryptissued its certificate

DNS Records

A 1

104.196.19.14

MX 1

0andrewchen-com.mail.protection.outlook.com

TXT 2

v=spf1 include:spf.protection.outlook.com -all
v=DMARC1; p=none;

NS 2

ns41.domaincontrol.com
ns42.domaincontrol.com

SOA 1

ns41.domaincontrol.com dns.jomax.net

TLS Certificates (2)

Common Name	Issuer	Expires
`andrewchen.com`	C=US, O=Let's Encrypt, CN=R12	Sat, 22 Aug 2026 16:26:37 +0000
`R12`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Fri, 12 Mar 2027 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 andrewchen.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_fc2d543c41375539
Output Hash: ef9778cd6b12199c24c18f019fd35600a5881d6a28f4426b2c25a1e36461a05c
Signature: ed25519:51732ed802170c44c55f2e34a3fe37556e0de0e4ffec08056348a93781604090275593f4e2132498a2a25c9217d4a118a7e30261c5149248a2d16fcab2b4d002
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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