firstmonday.org

Observed Jul 24, 2026, 03:42 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.

Verify this receipt yourself + Watch this domain

Up right now

Secured byLet's Encrypt

Registered withCSL Computer Service Langenbach GmbH d/b/a joker.com

1 subdomain · tranco_100k

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

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

firstmonday.org

A / AAAA

208.70.244.18

unattributedserves the site

uic-dns3.uic.eduuic-dns2.uic.eduuic-dns1.uic.edu

uic.eduanswers its DNS

firstmonday.org

firstmonday.orgreceives its email

TLS

firstmonday.org

Let's Encryptissued its certificate

DNS Records

A 1

208.70.244.18

MX 1

0firstmonday.org

NS 3

uic-dns3.uic.edu
uic-dns2.uic.edu
uic-dns1.uic.edu

SOA 1

uic-dns1.uic.edu nrj.uic.edu

TLS Certificates (4)

Common Name	Issuer	Expires
`firstmonday.org`	C=US, O=Let's Encrypt, CN=YE1	Fri, 28 Aug 2026 12:55:59 +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 (1)

www.firstmonday.org

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 firstmonday.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_b3b8106cc0110140
Output Hash: 67b230589c9395723b7be90d1aec300bf0cef295703a01e93d1fc967171a03f1
Signature: ed25519:5851d48884d7f5c08c43b8f487ecadc2c739a8d443dfce1cf60ef7e8b0cb798e7ac81405229f0d5783747dc422a985777e07547a57c7f58886e5a70f57d85c0c
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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