mathcity.org

Observed Aug 3, 2026, 03:47 UTC (13d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of mathcity.org was taken 13d ago

mathcity.org is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting mathcity.org 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.

Watch mathcity.org Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Verify this receipt yourself + Watch this domain
Up right now
Runs onCloudflare
Secured byGoogle Trust Services
Also usesGoogle Search Console
IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat mathcity.org actually stands on - every host below is a signed observation
mathcity.org
A / AAAA
104.21.44.141172.67.200.1952606:4700:3031::6815:2c8d2606:4700:3033::ac43:c8c3
Cloudflareserves the site
NS
huxley.ns.cloudflare.comsneh.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
moose.mxrouting.netmoose-relay.mxrouting.net
mxrouting.netreceives its email
TLS
mathcity.org
Google Trust Servicesissued its certificate

DNS Records

A 2

  • 104.21.44.141
  • 172.67.200.195

AAAA 2

  • 2606:4700:3031::6815:2c8d
  • 2606:4700:3033::ac43:c8c3

MX 2

  • 10moose.mxrouting.net
  • 20moose-relay.mxrouting.net

TXT 2

  • google-site-verification=VnwEVD8p0eJDNmOxiGA2Up3NiyabK-5iMNYfNAB2Yds
  • v=spf1 include:mxlogin.com -all

NS 2

  • huxley.ns.cloudflare.com
  • sneh.ns.cloudflare.com

SOA 1

  • huxley.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common NameIssuerExpires
mathcity.org C=US, O=Google Trust Services, CN=WE1 Mon, 05 Oct 2026 23:26:44 +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.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_615e4701b5b3c4ca
Output Hash
0136e46f5a9c8ce0d2b9bb1a594300a5e49169b2d3b9370a6b71542029247711
Signature
ed25519:55a84d6a30c83f938ac5adac79b4cbd3d01533e88853b94eaf19b32de9a355754eddc03c8d9008f1edf2e2500eff07ebaf328f98993c7acf5f95e985a6837c0c
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser
CONTINUOUS INTERNET TELEMETRY24H DRIFT41,624 material changesacross 40,171 domains · 24h to ~2h ago · -1,883 vs yesterdayROTATION65 domains moved DNS from magpiedns.com to koaladns.com, 57 moved backa rotation loop, not a migration · 24hNOW495 curated domains not reachablelast probe, steadySITE ERRORS36,299 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 117,570 sites429 rate-limit / 403 bot-block, a posture signal