CONTINUOUS INTERNET TELEMETRY24H DRIFT819 material changesacross 735 domains · +365 vs yesterdayDNS DRIFT20 domains changed DNS providertop destination parity.domains · +16 vs yesterdayEMAIL DRIFT5 domains switched email providertop destination pphosted.com · +3 vs yesterdayNOW2,577 curated domains not answering+362 vs yesterdayERRORS9,953 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED2,714 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT819 material changesacross 735 domains · +365 vs yesterdayDNS DRIFT20 domains changed DNS providertop destination parity.domains · +16 vs yesterdayEMAIL DRIFT5 domains switched email providertop destination pphosted.com · +3 vs yesterdayNOW2,577 curated domains not answering+362 vs yesterdayERRORS9,953 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED2,714 throttled or blocked our scanner429 rate-limit / 403 bot-block

usi.net

Observed 2026-07-14T21:07:51.243Z (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding
Email byProofpoint
Registered withCSC Corporate Domains, Inc.
6 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat usi.net actually stands on - every host below is a signed observation
usi.net
A / AAAA
209.135.40.196
unattributedserves the site
NS
ns3.usi.netns2.usi.netns1.usi.netns4.usi.net
usi.netanswers its DNS
MX
mxb-00191d01.gslb.pphosted.commxa-00191d01.gslb.pphosted.com
Proofpointreceives its email

HTTPS probe

timeout No response within the timeout Connection timed out - no response within 3s
HTTP status0
Servernot observed
TLS protocolnot observed
TLS issuernot observed
Behind Cloudflareno
Response time6200 ms
DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

  • 209.135.40.196

MX 2

  • 10mxb-00191d01.gslb.pphosted.com
  • 10mxa-00191d01.gslb.pphosted.com

TXT 2

  • v=spf1 a:mdsxaes01.usi.net a:mdsxaes02.usi.net a:ms3aeo04.usi.net a:ms3aeb02.usi.net ~all
  • v=DMARC1; p=none; fo=1; rua=mailto:att@rua.agari.com; ruf=mailto:att@ruf.agari.com

NS 4

  • ns3.usi.net
  • ns2.usi.net
  • ns1.usi.net
  • ns4.usi.net

SOA 1

  • ns1.usi.net rm-hostmaster.ems.att.com

TLS Certificates (0)

None.

Subdomains (6)

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 usi.net. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
73fedce8-7d81-41e4-9d79-e7f360166cb5
Output Hash
1a7991ee343ad877a8435cf4c0d657bcaa7528ed8cded49d2f75fea3b907707a
Signature
ed25519:891db8d7097485cc0eac67864c9491740f5ebfa76e51967033e951c4b008b533dd2aa2eb83c8932a01eac95f83359786edb0c71458618d23c3b85dcc46bb7303
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser