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

usui-dept.co.jp

Observed Aug 3, 2026, 10:12 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of usui-dept.co.jp was taken 3d ago

usui-dept.co.jp is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting usui-dept.co.jp 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 usui-dept.co.jp 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
Secured byLet's Encrypt
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat usui-dept.co.jp actually stands on - every host below is a signed observation
usui-dept.co.jp
A / AAAA
162.43.105.146
unattributedserves the site
NS
01.dnsv.jp02.dnsv.jp03.dnsv.jp04.dnsv.jp
dnsv.jpanswers its DNS
MX
sv805.xbiz.ne.jp
ne.jpreceives its email
TLS
www.usui-dept.co.jp
Let's Encryptissued its certificate

DNS Records

A 1

  • 162.43.105.146

MX 1

  • 10sv805.xbiz.ne.jp

TXT 1

  • v=spf1 ip4:27.34.156.58 a:sv805.xbiz.ne.jp a:usui-dept.co.jp mx include:spf.bserver.jp include:spf.sender.xserver.jp ~all

NS 4

  • 01.dnsv.jp
  • 02.dnsv.jp
  • 03.dnsv.jp
  • 04.dnsv.jp

SOA 1

  • 01.dnsv.jp hostmaster.dnsv.jp

TLS Certificates (3)

Common NameIssuerExpires
www.usui-dept.co.jp C=US, O=Let's Encrypt, CN=YR1 Sun, 25 Oct 2026 23:05:12 +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 (1)

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_de5f65acc3518245
Output Hash
90f3535d41e7406b68f00abd51d1d86709fc2a2501e08311808cb86f145d216c
Signature
ed25519:a8762400112700444d97a6454c19893455ebc7c7940c5ca1d650f54c8d347211b88f330a79398c3ed598ffaa0bc8f6dc88e3f246bac4ab9d108e6ccfda25b503
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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