Rank #9,982Updated November 10, 2026
yonsei.ac.kr
site move
The registration expires on October 14, 2028. The site runs on jQuery, Java. Its email security grade is C. Its SSL certificate is issued by DigiCert Inc and is valid for 164 more days.
- Domain age
- 33.4 yrs
- Technologies
- 2
- Email security
- C
- SSL days left
- 164
Registration
| Registered | June 7, 1993 |
|---|---|
| Expires | October 14, 2028 |
| Updated | December 4, 2019 |
| Status | active |
| Name servers | ns.yonsei.ac.kr, ns2.yonsei.ac.kr, ns3.yonsei.ac.kr, yumciris.yonsei.ac.kr |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 165.132.13.87 | 1668 |
| MX | alt4.aspmx.l.google.com 10 | 1744 |
| MX | alt3.aspmx.l.google.com 10 | 1744 |
| MX | alt1.aspmx.l.google.com 5 | 1744 |
| MX | aspmx.l.google.com 1 | 1744 |
| MX | alt2.aspmx.l.google.com 5 | 1744 |
| NS | ns3.yonsei.ac.kr | 3600 |
| NS | yumciris.yonsei.ac.kr | 3600 |
| NS | ns.yonsei.ac.kr | 3600 |
| NS | ns2.yonsei.ac.kr | 3600 |
| TXT | google-site-verification=aIY9qt8_pA5GT854oY_VlTomJ5St1n2Yed9NFWWz2aI | 3600 |
| TXT | google-site-verification=9nWmjG3yoyHVAJ_7-X4PNxHqfbCAfE0sRagOClhnJ-k | 3600 |
| TXT | 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 | 3600 |
| TXT | worksmobile.certification.jx9zlodqjilmsa2ywc.dber4coldpssnw.tbdbovwpy | 3600 |
| TXT | google-site-verification=g8lpRpYZZWz0VwTd-LPHz08KQlB77pIo13YV-Yox9nc | 3600 |
| TXT | google-site-verification=2rsjpJZLg1FwN9g_C1Q6d_e9nGkHaRXSrThEU0jYzuI | 3600 |
| TXT | google-site-verification=ZGV1Un5NAw8C5RKLmE6UMUHzUfTRZaTkSDir7KWihy4 | 3600 |
| TXT | _ztpcrsw20d03lwqjio8xex8mtirplab | 3600 |
Technology stack
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, Thawte TLS RSA CA G1, DigiCert Inc |
| Expires | April 24, 2027 |
| Days remaining | 164 |
| Protocol | TLSv1.3 |
| Names | *.yonsei.ac.kr, yonsei.ac.kr |
Email security
CScore 65/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnSPF uses 10 of the 10 allowed DNS lookups. Adding another service may break it.
- warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with -all: servers you have not listed are rejected (hard fail).
- goodDMARC aggregate reports are sent to mailto:[email protected].
- goodDKIM keys found (selector: google).
- good5 MX record(s) found. Mail is handled by Google Workspace.
Homepage metadata
| Title | site move |
|---|---|
| Language | en |
| Canonical | https://www.yonsei.ac.kr |
| Indexable | Yes |
| Word count | 0 |
About yonsei.ac.kr
When does yonsei.ac.kr expire?
The current registration of yonsei.ac.kr expires on October 14, 2028. It was first registered on June 7, 1993.
What technology does yonsei.ac.kr use?
We detected 2 technologies on yonsei.ac.kr, including jQuery, Java.
Does yonsei.ac.kr protect its email with SPF and DMARC?
yonsei.ac.kr scores 65/100 (grade C) for email security. SPF uses 10 of the 10 allowed DNS lookups. Adding another service may break it. DMARC policy is none (monitoring only). Spoofed mail is still delivered.
What are the name servers of yonsei.ac.kr?
yonsei.ac.kr uses ns3.yonsei.ac.kr, yumciris.yonsei.ac.kr, ns.yonsei.ac.kr, ns2.yonsei.ac.kr.