zupass.org

Observed Jul 26, 2026, 22:22 UTC (7d 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

Runs onCloudflare

Email byGoogle Workspace

Secured byGoogle Trust Services

Also usesGoogle Search Console

IPv6 · domcop

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

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

zupass.org

A / AAAA

172.67.157.254104.21.66.862606:4700:3036::6815:42562606:4700:3035::ac43:9dfe

Cloudflareserves the site

aron.ns.cloudflare.comscott.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

zupass.org

Google Trust Servicesissued its certificate

DNS Records

A 2

172.67.157.254
104.21.66.86

AAAA 2

2606:4700:3036::6815:4256
2606:4700:3035::ac43:9dfe

MX 5

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

TXT 4

google-site-verification=kAynsKGWXbRHVoodI5jjpo6GK7oH5JmT_HPC5qMmROQ
v=spf1 include:_spf.google.com ~all
v=spf1 include:mailgun.org include:sendgrid.net ~all
v=DMARC1; p=none;

NS 2

aron.ns.cloudflare.com
scott.ns.cloudflare.com

SOA 1

aron.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`zupass.org`	C=US, O=Google Trust Services, CN=WE1	Wed, 14 Oct 2026 00:54:11 +0000
`WE1`	C=US, O=Google Trust Services LLC, CN=GTS Root R4	Tue, 20 Feb 2029 14:00:00 +0000
`GTS Root R4`	C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA	Fri, 28 Jan 2028 00:00:42 +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 zupass.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_43ee0027345416c9
Output Hash: e73be3b7d315556f7f105671c417b0ea07c64a10412aa676d51ee71c9753dc28
Signature: ed25519:b387541365a5430793489972cf579ddc387660681f02a82147a5d4fe5b5c3bf4baa447fb50af329371119cea84d8115f10efab618db27af493ae3cdb119ce40a
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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