CONTINUOUS INTERNET TELEMETRY24H DRIFT34,178 material changesacross 31,769 domains · 24h to ~2h agoDNS DRIFT54 domains changed DNS providertop destination koaladns.com · +32 vs yesterdayNOW556 curated domains not reachablelast probe, steadySITE ERRORS33,680 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 157,156 sites429 rate-limit / 403 bot-block, a posture signal

yuhan.ac.kr

Observed Aug 3, 2026, 10:29 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of yuhan.ac.kr was taken 1d ago

yuhan.ac.kr is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting yuhan.ac.kr 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 yuhan.ac.kr Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Verify this receipt yourself + Watch this domain
Not responding
Email byGoogle Workspace
Also usesGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat yuhan.ac.kr actually stands on - every host below is a signed observation
yuhan.ac.kr
NS
ns2.yuhan.ac.krblue.yuhan.ac.krns2.kornet.net
ac.kr + kornet.netanswers its DNS
MX
alt2.aspmx.l.google.comalt1.aspmx.l.google.comaspmx.l.google.comalt4.aspmx.l.google.com+1 more
Google Workspacereceives its email

DNS Records

MX 5

  • 5alt2.aspmx.l.google.com
  • 5alt1.aspmx.l.google.com
  • 1aspmx.l.google.com
  • 10alt4.aspmx.l.google.com
  • 10alt3.aspmx.l.google.com

TXT 4

  • v=spf1 include:_spf.google.com include:spf.protection.outlook.com ~all
  • google-site-verification=lFm9BbCKcvPd9M4IPBdzNUpqAe5TA8spds2Dj9aq4Rc
  • MS=1491A5998419E1666788997EB99AF43C1E29A9F9
  • google-site-verification=oi-q6Ej2lYIYe0OTXYOTgKQESRrY9CUFeh5CgaOjE5A

NS 3

  • ns2.yuhan.ac.kr
  • blue.yuhan.ac.kr
  • ns2.kornet.net

SOA 1

  • blue.yuhan.ac.kr please_set_email.absolutely.nowhere

DMARC_RECORDS 1

  • v=DMARC1; p=quarantine;

TLS Certificates (0)

None.

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.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_d68f9181605210e1
Output Hash
689fe5a6fc08c9af4693ec38f8caae9079cfeb9ea21bf107bb6114afa008601c
Signature
ed25519:ceb75d040b3558bdfaca148709081e037e54abb22ce5af07afd23996914a1110884c8c6b8f1eeda976d06842ce52721e316746c8702acdfd12e53125c3f2d905
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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