yu.ac.kr
Observed Aug 9, 2026, 19:58 UTC (19h 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 Workspace
Secured byGlobalSign
Also usesGoogle Search Console
tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat yu.ac.kr actually stands on - every host below is a signed observation
yu.ac.kr
A / AAAA
165.229.11.3
unattributedserves the site
NS
ns.yu.ac.krns3.yu.ac.kr
ac.kranswers its DNS
MX
ASPMX.L.GOOGLE.COMALT1.ASPMX.L.GOOGLE.COMALT2.ASPMX.L.GOOGLE.COMALT3.ASPMX.L.GOOGLE.COM+1 more
Google Workspacereceives its email
TLS
*.yu.ac.kr
GlobalSign nv-saissued its certificate
DNS Records
A 1
165.229.11.3
MX 5
1ASPMX.L.GOOGLE.COM5ALT1.ASPMX.L.GOOGLE.COM5ALT2.ASPMX.L.GOOGLE.COM10ALT3.ASPMX.L.GOOGLE.COM10ALT4.ASPMX.L.GOOGLE.COM
TXT 3
v=spf1 include:_spf.google.com include:_spf.yu.ac.kr include:gwspf.ktbizoffice.com include:_spf_edms.yu.ac.kr include:email.ncloud.com ~allgoogle-site-verification=vr6oKsEMqlkoN7WSeGShd1ESAs1BOsU1JMXX0scYmosautodesk-domain-verification=j8cPUeykXkFmfFsuCWE3
NS 2
ns.yu.ac.krns3.yu.ac.kr
SOA 1
ns.yu.ac.kr bskim.yu.ac.kr
SRV 1
autodiscover.yu.ac.kr:443 p0
DMARC_RECORDS 1
v=DMARC1; p=none; aspf=r; adkim=r; rua=mailto:dmarc@yu.ac.kr
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
*.yu.ac.kr |
C=BE, O=GlobalSign nv-sa, CN=GlobalSign GCC R6 AlphaSSL CA 2025 | Sat, 19 Dec 2026 04:22:29 +0000 |
GlobalSign GCC R6 AlphaSSL CA 2025 |
2.5.4.11=GlobalSign Root CA - R6, O=GlobalSign, CN=GlobalSign | Fri, 21 May 2027 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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_a5799f1e3acdc9aa- Output Hash
9201e4f75b8582fcb87ad7733a8532f9f5ae4aea786342852ec311c744523a6c- Signature
ed25519:deccf6475c2a53851e138247c4de586121e43fa3f28137c91bded309bae00b0c5383ea1d4cc29436b4f9764a9dbf97daf585239c29f70068f3b4fea9358a2901- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast