polyu.edu.hk

Observed Jul 18, 2026, 12:23 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onThe Hong Kong Polytechnic University

Email byMicrosoft 365

Secured byDigiCert

Also usesGoogle Search ConsoleFacebook/MetaAtlassian

1 subdomain · push_legacy

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

INFRASTRUCTURE MAPwhat polyu.edu.hk actually stands on - every host below is a signed observation

polyu.edu.hk

A / AAAA

158.132.48.76158.132.82.94

The Hong Kong Polytechnic Universityserves the site

ns4.polyu.edu.hkns3.polyu.edu.hk

edu.hkanswers its DNS

polyu-edu-hk.mail.protection.outlook.com

Microsoft 365receives its email

TLS

*.polyu.edu.hk

DigiCert Incissued its certificate

DNS Records

A 2

158.132.48.76
158.132.82.94

MX 1

10polyu-edu-hk.mail.protection.outlook.com

TXT 15

sophos-domain-verification=70802d6bba1ca9eae7fccef88be880c57192fa5ce4fba27e389b6f38e697fa32
google-gws-recovery-domain-verification=50227349
google-site-verification=ui1Q4jvNqdzqbqW17F3TkfazxyqAhvHgVeHz-4EZ-E4
atlassian-sending-domain-verification=517083e2-98df-498a-ab71-4e141214478d
v=spf1 include:spf.protection.outlook.com include:spf1.polyu.edu.hk include:spf2.polyu.edu.hk include:spf3.polyu.edu.hk a mx ~all
apple-domain-verification=xpc2BddvaHurWavB
atlassian-sending-domain-verification=9ae71124-b75f-4ccb-8a12-e4173d5aa536
google-gws-recovery-domain-verification=50205257
atlassian-sending-domain-verification=792bcc73-cc09-4587-89ca-964c00061174
google-site-verification=S4gP1ky07rXzDuJ2NTcqloJeWYRJRCM5FbDe7xFKfvc

NS 2

ns4.polyu.edu.hk
ns3.polyu.edu.hk

SOA 1

ns4.polyu.edu.hk dnsadm.polyu.edu.hk

TLS Certificates (3)

Common Name	Issuer	Expires
`*.polyu.edu.hk`	C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1	Thu, 31 Dec 2026 23:59:59 +0000
`DigiCert Global G2 TLS RSA SHA256 2020 CA1`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Sat, 29 Mar 2031 23:59:59 +0000
`DigiCert Global Root G2`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Fri, 15 Jan 2038 12:00:00 +0000

Subdomains (1)

www.polyu.edu.hk

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 polyu.edu.hk. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: b7463a50-edfc-4597-a70b-705e1004f25d
Output Hash: f2c42f9dc659060ecc1a466937c6b761a97d2293fd5868b919942f42ed1eb162
Signature: ed25519:c894673992a13949813ab128e189f7ea39271d22f91adc5a32280583e003b6834b49a51dc0366f492d537fa47a18bf12ca5198a9e53f47adaec0fdfafc838207
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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