archchicago.org

Observed Jul 24, 2026, 08:27 UTC (7h 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 byMicrosoft 365

Secured byLet's Encrypt

2 subdomains · tranco

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

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

archchicago.org

A / AAAA

23.92.23.228

Cloudflareserves the site

ns51.domaincontrol.comns52.domaincontrol.com

domaincontrol.comanswers its DNS

archchicago-org.mail.protection.outlook.com

Microsoft 365receives its email

TLS

schools.archchicago.org

Let's Encryptissued its certificate

DNS Records

A 1

23.92.23.228

MX 1

1archchicago-org.mail.protection.outlook.com

TXT 6

v=spf1 ip4:50.255.170.210 ip4:149.72.151.35/32 ip4:149.72.183.8/32 include:spf.protection.outlook.com include:mailgun.org include:spf1.archchicago.org include:spf2.archchicago.org include:spf3.archchicago.org include:spf4.archchicago.org -all
anthropic-domain-verification-akkm8t=orlhPlHFOTSrwZ8ncct2qwxUY
@ms=ms34390410
SFMC-3ji3HIIohVyDrncSIW4JcG0yYGy7E1SXRUXEm7WW
UcKAJJimlxHr6uL3U91EHDltwxDkTmL5DG7Ka6IDANekjPriQuaRE0gE8UG+i6E6DQjdSiKfisCEkUjoJ/HEeQ==
v=DMARC1; p=none; rua=mailto:hostmaster@archchicago.org; aspf=r; adkim=r;

NS 2

ns51.domaincontrol.com
ns52.domaincontrol.com

SOA 1

ns51.domaincontrol.com dns.jomax.net

TLS Certificates (3)

Common Name	Issuer	Expires
`schools.archchicago.org`	C=US, O=Let's Encrypt, CN=YR1	Tue, 15 Sep 2026 05:32:39 +0000
`YR1`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (2)

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

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

Ed25519 Receipt

Receipt ID: rcpt_05951c963015e457
Output Hash: 105bfe6de741783a767314d688f31e765f179525a2d68241bf0fa1f2c13d5d5b
Signature: ed25519:f41aed59896d0b881e42ea28101990f6217611fc2c104d91e5fffcd54dcdb935c7fe0fa5defe98050b34504dadb91ebb4c71c7891319c5ee8ed5a8e55602bc09
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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