CONTINUOUS INTERNET TELEMETRY24H DRIFT66,120 material changesacross 63,653 domains · 24h to ~4h ago · +31,503 vs yesterdayROTATION56 domains moved DNS from koaladns.com to magpiedns.com, 56 moved backa rotation loop, not a migration · 24hNOW533 curated domains not reachablelast probe, steadySITE ERRORS33,789 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 121,565 sites429 rate-limit / 403 bot-block, a posture signal

usem.org

Observed Aug 2, 2026, 20:02 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of usem.org was taken 3d ago

usem.org is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting usem.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 usem.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
Email byZoho Mail
Secured byLet's Encrypt
2 subdomains · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat usem.org actually stands on - every host below is a signed observation
usem.org
A / AAAA
74.124.203.28
unattributedserves the site
NS
annabel.ns.cloudflare.comkurt.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mx.zoho.commx2.zoho.commx3.zoho.com
Zoho Mailreceives its email
TLS
usem.org
Let's Encryptissued its certificate

DNS Records

A 1

  • 74.124.203.28

MX 3

  • 10mx.zoho.com
  • 20mx2.zoho.com
  • 50mx3.zoho.com

TXT 1

  • v=spf1 include:zohomail.com include:_spf.getresponse.com -all

NS 2

  • annabel.ns.cloudflare.com
  • kurt.ns.cloudflare.com

SOA 1

  • annabel.ns.cloudflare.com dns.cloudflare.com

DMARC_RECORDS 1

  • v=DMARC1; p=quarantine; rua=mailto:mailadmin@usem.org; ruf=mailto:mailadmin@usem.org; sp=quarantine; adkim=r; aspf=r

TLS Certificates (3)

Common NameIssuerExpires
usem.org C=US, O=Let's Encrypt, CN=YR1 Fri, 30 Oct 2026 03:49:06 +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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_bbd2771a0edf58ac
Output Hash
19f7450cb3b8b358b6455dfa9d9d3f3740a03cddbb22a4c3d4c3154cbda88cbb
Signature
ed25519:75604ac0fb83ffc540afc24df7ce8637e16a4611edb5ce7549cff932f432e1bf133dd18b120bf0e40bb0503e5668509d3952cdfc991e733d6558f049424d2603
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser