ryutopia.or.jp

Observed Aug 10, 2026, 19:59 UTC (6d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of ryutopia.or.jp was taken 6d ago

ryutopia.or.jp is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting ryutopia.or.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 ryutopia.or.jp Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Email byGoogle (SPF sender)
Secured byJapan Registry Services Co.
Also usesMicrosoft 365
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ryutopia.or.jp actually stands on - every host below is a signed observation
ryutopia.or.jp
A / AAAA
194.91.0.71
unattributedserves the site
NS
ns6.cpi.ad.jpns7.cpi.ad.jp
ad.jpanswers its DNS
MX
vlmx-air.secure.ne.jp
Google (SPF sender)receives its email
TLS
www.ryutopia.or.jp
Japan Registry Services Co.issued its certificate

DNS Records

A 1

  • 194.91.0.71

MX 1

  • 10vlmx-air.secure.ne.jp

TXT 2

  • MS=3C0B4E28DF726342AEEC4566D69B7933DC62953B
  • v=spf1 include:spf2.secure.ne.jp include:_spf.google.com ~all

NS 2

  • ns6.cpi.ad.jp
  • ns7.cpi.ad.jp

SOA 1

  • ns6.cpi.ad.jp hostmaster.cpi.ad.jp

DMARC_RECORDS 1

  • v=DMARC1; p=none;

TLS Certificates (2)

Common NameIssuerExpires
www.ryutopia.or.jp C=JP, O=Japan Registry Services Co., Ltd., CN=JPRS Domain Validation Authority - G4 Sun, 30 Aug 2026 14:59:59 +0000
JPRS Domain Validation Authority - G4 C=JP, O=SECOM Trust Systems CO.,LTD., 2.5.4.11=Security Communication RootCA2 Tue, 29 May 2029 05:00:39 +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.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_c61f161475382eb9
Output Hash
85510a8ccc96e1967e3e71c5c0f859d156306d6510a224c4ea1e978a9ffde5e8
Signature
ed25519:601abf5251a26d148f73e458a786aa68760952db69ea98604f08d41013ccb7e3c53f46a17861b4334e1d8cdab69d20fbbb3980b6698fbefea21a2344330eae0c
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT42,258 material changesacross 40,416 domains · 24h to ~60m ago · +699 vs yesterdayDNS DRIFT87 domains changed DNS providertop destination koaladns.com · +5 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination alltheemails.comNOW554 curated domains not reachable+59 vs yesterdaySITE ERRORS36,496 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,535 sites429 rate-limit / 403 bot-block, a posture signal