upb.edu

Observed Jul 25, 2026, 03:16 UTC (8d 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

Not responding

Email byGoogle Workspace

Secured byGlobalSign

Also usesGoogle Search Console

tranco

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

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

upb.edu

A / AAAA

31.43.160.6190.104.24.10731.43.161.6

unattributedserves the site

ns.upb.eduns2.upb.edu

upb.eduanswers its DNS

alt3.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comalt4.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

upb.edu

Let's Encryptissued its certificate

DNS Records

A 3

31.43.160.6
190.104.24.107
31.43.161.6

MX 5

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

TXT 7

brevo-code:4a67793550b2bfa47d37b97d56019c6c
google-site-verification=ltWJMa19piiiX2BnWew6dYXRZZ-9qAnAPQOeCSiDMcA
TAILSCALE-tPkXEM4GwqLre375BAua
globalsign-domain-verification=wwCRC3N4ree-48f0y056UWH4RTrJfsnPLOvdnbnIRE
v=spf1 ip4:190.104.24.107 ip4:190.104.24.98 include:_spf.google.com include:spf.sendinblue.com ~all
brevo-code:c336d88f2e864761cd03832e5aed5447
v=DMARC1; p=none; rua=mailto:admin@upb.edu

NS 2

ns.upb.edu
ns2.upb.edu

SOA 1

ns.upb.edu adminmaster.upb.edu

TLS Certificates (4)

Common Name	Issuer	Expires
`upb.edu`	C=US, O=Let's Encrypt, CN=YE1	Sat, 29 Aug 2026 03:13:33 +0000
`YE1`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 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 upb.edu. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_dac2555da19fe341
Output Hash: 4b9c91e3b5b93151f0de7e7db665ee9732c5d2a9fbab8f9cd4112fc461d1969f
Signature: ed25519:59de46bacd9cc80ef10a943b827f35a033ba1619ba03f18c581f28317e1e6466138164f375cb42484e54eb23b5ecaeb00798d76a2c147f6dcab32701e89e6f0b
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/upb.edu