CONTINUOUS INTERNET TELEMETRY24H DRIFT12,506 material changesacross 11,734 domains · 24h to ~2h ago · +3,743 vs yesterdayNOW560 curated domains not reachablelast probe, steadySITE ERRORS34,304 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,289 sites429 rate-limit / 403 bot-block, a posture signalMOVERokta.comNo mail routes in the latest observation

ycc.ac.kr

Observed Aug 2, 2026, 11:53 UTC (23h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

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Up right now
Secured byGlobalSign
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ycc.ac.kr actually stands on - every host below is a signed observation
ycc.ac.kr
A / AAAA
220.89.62.158
unattributedserves the site
NS
ns2.ycc.ac.krns.ycc.ac.kr
ac.kranswers its DNS
MX
mail.ycc.ac.kr
ac.krreceives its email
TLS
*.ycc.ac.kr
GlobalSign nv-saissued its certificate

DNS Records

A 1

  • 220.89.62.158

MX 1

  • 20mail.ycc.ac.kr

TXT 1

  • _globalsign-domain-verification=dZcytOieFdEdCWdaRBnAsNomXFJC3aInUmj6HSV--k

NS 2

  • ns2.ycc.ac.kr
  • ns.ycc.ac.kr

SOA 1

  • ns.ycc.ac.kr root.ns.ycc.ac.kr

TLS Certificates (3)

Common NameIssuerExpires
*.ycc.ac.kr C=BE, O=GlobalSign nv-sa, CN=GlobalSign RSA OV SSL CA 2018 Sat, 31 Oct 2026 00:16:01 +0000
GlobalSign RSA OV SSL CA 2018 2.5.4.11=GlobalSign Root CA - R3, O=GlobalSign, CN=GlobalSign Tue, 21 Nov 2028 00:00:00 +0000
GlobalSign 2.5.4.11=GlobalSign Root CA - R3, O=GlobalSign, CN=GlobalSign Sun, 18 Mar 2029 10:00:00 +0000

Subdomains (0)

None observed.

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.

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Ed25519 Receipt

Receipt ID
rcpt_5e0fa5cb9f00d090
Output Hash
ed651b88aa0e99921832e413d6b8528677b0334206c7121959777e1d4479a0d6
Signature
ed25519:96d3a862e759c5b79d505cd558c230172ccd48806c07bde7627ad200d869f116508874729cb8880be9def3c3e747c8ea087319d486c2b0dab3ef8fe2e5834d01
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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