jj.ac.kr - robtex.com
jj.ac.kr
ac.kr
| DNSSEC | ⚠️ Not signed | ||||||
| NS | g.dns.kr ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | c.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | d.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | e.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | f.dns.kr ⚠️ Not in parent delegation | ||||||
| SOA | g.dns.krdomain-manager@nic.or.kr serial=2607050501 | ||||||
rank #674 in the tld
WOT: UNKNOWN (47/100)
📈 Tranco rank: #118,934
WOT: SAFE (99/100)
Subdomains
ns2.jj.ac.kr |
lis.jj.ac.kr |
home.jj.ac.kr |
instar.jj.ac.kr |
www.jj.ac.kr |
iphak.jj.ac.kr |
cyber.jj.ac.kr |
ns.jj.ac.kr |
mail.jj.ac.kr |
Same first word
DNS History
12 records (8 active, 4 former)
○NSinv2dns.nic.or.kr2015-07-24 → 2020-01-25 · 4 obs
● 2020-01-25 17:56:32
○ 2026-02-14 18:18:04
○ 2026-07-05 16:59:34
●NSns.jj.ac.kr2015-07-24 → 2026-07-05 · 2 obs
● 2026-07-05 16:59:34
●NSns2.jj.ac.kr2015-07-24 → 2026-07-05 · 2 obs
● 2026-07-05 16:59:34
○NSns2.kornet.net2015-07-24 → 2020-01-25 · 4 obs
● 2020-01-25 17:56:32
○ 2026-02-14 18:18:04
○ 2026-07-05 16:59:34
●MXalt1.aspmx.l.google.com2026-02-14 → 2026-07-05 · 3 obs
● 2026-02-14 18:18:04
● 2026-07-05 16:59:34
●MXalt2.aspmx.l.google.com2026-02-14 → 2026-07-05 · 3 obs
● 2026-02-14 18:18:04
● 2026-07-05 16:59:34
●MXalt3.aspmx.l.google.com2026-02-14 → 2026-07-05 · 3 obs
● 2026-02-14 18:18:04
● 2026-07-05 16:59:34
●MXalt4.aspmx.l.google.com2026-02-14 → 2026-07-05 · 3 obs
● 2026-02-14 18:18:04
● 2026-07-05 16:59:34
●MXaspmx.l.google.com2026-02-14 → 2026-07-05 · 3 obs
● 2026-02-14 18:18:04
● 2026-07-05 16:59:34
○MXmail.jj.ac.kr2015-07-24 → 2020-01-25 · 4 obs
● 2020-01-25 17:56:32
○ 2026-02-14 18:18:04
○ 2026-07-05 16:59:34
●A202.31.240.122026-02-14 → 2026-07-05 · 3 obs
● 2026-02-14 18:18:04
● 2026-07-05 16:59:34
○A202.31.240.512015-07-24 → 2020-01-25 · 4 obs
● 2020-01-25 17:56:32
○ 2026-02-14 18:18:04
○ 2026-07-05 16:59:34
🔍 DNS Trace
Analysis
Hierarchy
The host names ns2.jj.ac.kr, lis.jj.ac.kr, home.jj.ac.kr, instar.jj.ac.kr and www.jj.ac.kr — among a few others — fall under the parent domain jj.ac.kr.
IP Addresses
jj.ac.kr points to a single IP number: 202.31.240.12.
Host names such as lis.jj.ac.kr, www.jj.ac.kr and iphak.jj.ac.kr share their IP numbers with jj.ac.kr.
Name Servers
jj.ac.kr uses two name servers for its delegation: ns2.jj.ac.kr and ns.jj.ac.kr.
At least some of jj.ac.kr's name servers are also used by other domains, among them jeonju.ac.kr.
These name servers tend to be used in conjunction with the name servers ns.jeonju.ac.kr.
Each of ns2.jj.ac.kr and ns.jj.ac.kr has one IP address: ns2.jj.ac.kr uses 202.31.240.2 and ns.jj.ac.kr uses 202.31.224.3.
Mail Servers
Five mail servers handle jj.ac.kr: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
jj.ac.kr shares mail servers — at least in part — with other domains, including tylerbrown.us, ns500794.ns500821.ns500821.ns500794.ns500794.ns500794.ns500821.ns500794.ns500821.ns500821.ns500795.ns500795.ns500790.ns500795.lustypartnersfinder.com, auto-planning.fr and two others.
These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.
Host names with two IP numbers:
aspmx.l.google.com directs traffic to 142.251.163.26 and 2607:f8b0:4004:c1b::1b.
alt1.aspmx.l.google.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com directs traffic to 172.253.157.26 and 2a00:1450:400c:c23::1b.