jsca.co.jp

Observed Aug 2, 2026, 22:39 UTC (13d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of jsca.co.jp was taken 13d ago

jsca.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 jsca.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 jsca.co.jp Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Secured byLet's Encrypt
1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat jsca.co.jp actually stands on - every host below is a signed observation
jsca.co.jp
A / AAAA
157.112.176.23
unattributedserves the site
NS
ns3.xserver.jpns4.xserver.jpns5.xserver.jpns2.xserver.jp+1 more
xserver.jpanswers its DNS
MX
jsca.co.jp
jsca.co.jpreceives its email
TLS
www.jsca.co.jp
Let's Encryptissued its certificate

DNS Records

A 1

  • 157.112.176.23

MX 1

  • 0jsca.co.jp

TXT 1

  • v=spf1 +a:sv822.xserver.jp +a:jsca.co.jp +mx include:spf.sender.xserver.jp ~all

NS 5

  • ns3.xserver.jp
  • ns4.xserver.jp
  • ns5.xserver.jp
  • ns2.xserver.jp
  • ns1.xserver.jp

SOA 1

  • ns1.xserver.jp root.sv0.xserver.jp

DMARC_RECORDS 1

  • v=DMARC1; p=none;

TLS Certificates (3)

Common NameIssuerExpires
www.jsca.co.jp C=US, O=Let's Encrypt, CN=YR2 Mon, 05 Oct 2026 22:29:32 +0000
YR2 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.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_8c2559635f3566ca
Output Hash
bffb18af8cc4c4ffa03dd8845d5ae2fd73828996f5d75a5d3d4a026a35b08f0d
Signature
ed25519:1a16e8c2b131c21e7075bfcc657ddd7d886a9e1f9b4f7717b4806be964bbe4ae5d6b846f657c231b20e0967b3b94ac2ce08d93f6ca3bbbc66b351559787b3306
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT41,559 material changesacross 40,090 domains · 24h to ~2h ago · -1,948 vs yesterdayROTATION56 domains moved DNS from koaladns.com to magpiedns.com, 56 moved backa rotation loop, not a migration · 24hNOW496 curated domains not reachablelast probe, steadySITE ERRORS36,272 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 117,484 sites429 rate-limit / 403 bot-block, a posture signal