k12workbook.com

Observed Aug 11, 2026, 04:43 UTC (4d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of k12workbook.com was taken 4d ago

k12workbook.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting k12workbook.com under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

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Up right now
Runs onCloudflare
Secured byGoogle Trust Services
IPv6 · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat k12workbook.com actually stands on - every host below is a signed observation
k12workbook.com
A / AAAA
172.67.154.45104.21.4.1932606:4700:3033::6815:4c12606:4700:3030::ac43:9a2d
Cloudflareserves the site
NS
amber.ns.cloudflare.comkellen.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
_dc-mx.339c34a8e89f.k12workbook.com
unattributedreceives its email
TLS
k12workbook.com
Google Trust Servicesissued its certificate

DNS Records

A 2

  • 172.67.154.45
  • 104.21.4.193

AAAA 2

  • 2606:4700:3033::6815:4c1
  • 2606:4700:3030::ac43:9a2d

MX 1

  • 0_dc-mx.339c34a8e89f.k12workbook.com

TXT 1

  • v=spf1 a mx ip4:82.180.133.37 ip6:2a02:4780:10:da33:0:0:0:1 ~all

NS 2

  • amber.ns.cloudflare.com
  • kellen.ns.cloudflare.com

SOA 1

  • amber.ns.cloudflare.com dns.cloudflare.com

SRV 1

  • cpanelemaildiscovery.cpanel.net:443 p0

TLS Certificates (3)

Common NameIssuerExpires
k12workbook.com C=US, O=Google Trust Services, CN=WE1 Fri, 30 Oct 2026 17:34:26 +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; the only network request the check makes is for the published public keys.

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Ed25519 Receipt

Receipt ID
rcpt_18bee4cd2bcef8e5
Output Hash
3c8f1ab5d985f86aceeadef3a0d29561b54ab6d6338beec813ff697d22edb175
Signature
ed25519:655a4ca973e848611641874f1fea78324eb39f1d72acfde16851f578dcd16bb9e4b61899016f0be757bea300cd53684054124b0f05b9685bf117b320e2061d03
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT46,574 material changesacross 44,672 domains · 24h to ~25m ago · +2,492 vs yesterdayROTATION61 domains moved DNS from koaladns.com to magpiedns.com, 60 moved backa rotation loop, not a migration · 24hNOW489 curated domains not reachablelast probe, steadySITE ERRORS36,539 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,351 sites429 rate-limit / 403 bot-block, a posture signal