cityofchicago.org

Last scanned 8h ago; the signed record is unchanged since 14d ago. Every field below carries an Ed25519 signature from that last reading. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

Guarded by a firewall
Email byProofpoint
Secured byLet's Encrypt
Registered withGoDaddy.com, LLC
Also usesMicrosoft 365SecureframeAppleMongoDBGlobalSignCisco
6 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT

Steady. No change on record for cityofchicago.org in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.

SIGNED-OUT VIEW Provider names, posture and counts are shown. The record values - every DNS answer, each subdomain hostname, raw TXT, IPs, cert names and WHOIS - are the product. Sign in for the full signed record, or use the API with a key.

DNS records 24

A2NS6MX2TXT11SRV2SOA1

TLS certificates 3

Issued byLet's Encrypt
ExpiresSun, 30 Au (5d)
Certificate nameswithheld

Subdomains 6

6 subdomain hostnames observed and signed - the list itself is part of the paid record.

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; the only network request the check makes is for the published public keys.

Verify this receipt
Ed25519 receiptthe raw cryptographic proof
Receipt ID
rcpt_983430eced1d32d7
Output Hash
e08f226ebc887d9c66be57a062f7bd8b71a533f77b15fdb04dbe88091704cafc
Signature
ed25519:12507ee3df0c27206b17b3548a501f7d48f0e54366b4a4a2d52e0573da174ca95a809c9aa3c1bf45110ddb92b574020c2304eb5a7e3afcf899cef12db2b5ad04
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT10,909 material changesacross 9,359 domains · 24h to ~60m agoROTATION54 domains moved DNS from magpiedns.com to koaladns.com, 52 moved backa rotation loop, not a migration · 24hEMAIL DRIFT2 domains switched email providertop destination amazonaws.comREGISTRAR DRIFT1 changed registrar24hNOW468 curated domains not reachable+48 vs yesterdaySITE ERRORS17,737 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 78,804 sites429 rate-limit / 403 bot-block, a posture signal