yonsei.ac.kr

Observed Jul 21, 2026, 19:35 UTC (1d 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.

Verify this receipt yourself + Watch this domain

Up right now

Email byGoogle Workspace

Secured byDigiCert

Also usesGoogle Search Console

push_legacy

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat yonsei.ac.kr actually stands on - every host below is a signed observation

yonsei.ac.kr

A / AAAA

165.132.13.87

unattributedserves the site

yumciris.yonsei.ac.krns2.yonsei.ac.krns3.yonsei.ac.krns.yonsei.ac.kr

ac.kranswers its DNS

alt4.aspmx.l.google.comaspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

*.yonsei.ac.kr

DigiCert Incissued its certificate

DNS Records

A 1

165.132.13.87

MX 5

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

TXT 8

google-site-verification=9nWmjG3yoyHVAJ_7-X4PNxHqfbCAfE0sRagOClhnJ-k
worksmobile.certification.jx9zlodqjilmsa2ywc.dber4coldpssnw.tbdbovwpy
google-site-verification=g8lpRpYZZWz0VwTd-LPHz08KQlB77pIo13YV-Yox9nc
google-site-verification=2rsjpJZLg1FwN9g_C1Q6d_e9nGkHaRXSrThEU0jYzuI
google-site-verification=ZGV1Un5NAw8C5RKLmE6UMUHzUfTRZaTkSDir7KWihy4
_ztpcrsw20d03lwqjio8xex8mtirplab
v=spf1 include:_spf1.yonsei.ac.kr include:_spf2.yonsei.ac.kr include:_spf3.yonsei.ac.kr include:_spf4.yonsei.ac.kr include:_spf.google.com include:mailplug.com -all
v=DMARC1; p=none; rua=mailto:neon@yonsei.ac.kr, mailto:dmarc@yonsei.ac.kr

NS 4

yumciris.yonsei.ac.kr
ns2.yonsei.ac.kr
ns3.yonsei.ac.kr
ns.yonsei.ac.kr

SOA 1

ns.yonsei.ac.kr network.yonsei.ac.kr

TLS Certificates (3)

Common Name	Issuer	Expires
`*.yonsei.ac.kr`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=Thawte TLS RSA CA G1	Tue, 20 Oct 2026 23:59:59 +0000
`Thawte TLS RSA CA G1`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Tue, 02 Nov 2027 12:24:25 +0000
`DigiCert Global Root G2`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Fri, 15 Jan 2038 12:00:00 +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.

Verify this receipt

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

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

Ed25519 Receipt

Receipt ID: rcpt_19cbf0a9fb1b0b9c
Output Hash: b836ca591771d7d5999179042897170dfe22c029a6e4e78885b98254eae5e74d
Signature: ed25519:91c4872323ba73a285a10375b41aa6419b9528ec9419310969ca2aab35900eebfb7d9edc125581d6f22470791e4e679610bcbe510e9b90d7b850498ee9c2680b
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/yonsei.ac.kr