CONTINUOUS INTERNET TELEMETRY24H DRIFT38,059 material changesacross 36,939 domains · 24h to ~65m ago · -2,801 vs yesterdayNOW555 curated domains not reachablelast probe, steadySITE ERRORS34,567 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,805 sites429 rate-limit / 403 bot-block, a posture signal

ust.ac.kr

Observed Jul 25, 2026, 14:55 UTC (8d 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.

Up right now
Email byGoogle (SPF sender)
Secured bySectigo
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ust.ac.kr actually stands on - every host below is a signed observation
ust.ac.kr
A / AAAA
210.98.46.8
unattributedserves the site
NS
ns.ust.ac.kr
ac.kranswers its DNS
MX
gcmx02.govkorea.krgcmx03.govkorea.krgcmx01.govkorea.kr
Google (SPF sender)receives its email
TLS
*.ust.ac.kr
Sectigo Limitedissued its certificate

DNS Records

A 1

  • 210.98.46.8

MX 3

  • 10gcmx02.govkorea.kr
  • 10gcmx03.govkorea.kr
  • 10gcmx01.govkorea.kr

TXT 3

  • mailer.domain.verification=t5xOULPZDPLh6sYmKVSrONL9UEO1ed
  • v=spf1 mx include:_spf.google.com ip4:211.251.247.126 ip4:211.251.247.125 ip4:211.251.247.120 ip4:210.98.46.130 include:email.gov-ncloud.com include:govkorea.kr include:spf.protection.outlook.com include:spf.maillink.co.kr -all
  • v=DMARC1; p=none; rua=mailto:admin@ust.ac.kr

NS 1

  • ns.ust.ac.kr

SOA 1

  • ns.ust.ac.kr please_set_email.absolutely.nowhere

TLS Certificates (3)

Common NameIssuerExpires
*.ust.ac.kr C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Organization Validation Secure Server CA Sun, 02 Aug 2026 23:59:59 +0000
Sectigo RSA Organization Validation Secure Server CA C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority Tue, 31 Dec 2030 23:59:59 +0000
USERTrust RSA Certification Authority C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority Mon, 18 Jan 2038 23:59:59 +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.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for ust.ac.kr. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for ust.ac.kr <a href="https://domaindrift.io/t/ust.ac.kr"> <img src="https://domaindrift.io/badge/ust.ac.kr.svg" width="300" height="64" alt="DomainDrift signed observations for ust.ac.kr"> </a>

Ed25519 Receipt

Receipt ID
rcpt_c32b5f65b061a6e2
Output Hash
668f7eb05b04fbed4e0dfa3dc2ce4e306716b08905c2f5f353d1f98662c9dac3
Signature
ed25519:eddf6545350a9d041fe38dd2df49339ce58de539db6b98959f85f772133507a7aa2cee6a71ab926ff851f1a0bfb2922f587166a97c681b623f90b4250f5cc508
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser