yjedulab.com - robtex.com
yjedulab.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 211.239.164.200🇰🇷 HOSTWAY-AS-KR211.239.164.0/24 | ||||||
| PTR | mail.i-web.co.kr | ||||||
| PTR | www.i-web.co.kr | ||||||
| NS | ns1.i-web.kr ⭐ ⚠️ Not in parent delegation | ||||||
| A | 211.239.164.200🇰🇷 HOSTWAY-AS-KR211.239.164.0/24 | ||||||
| PTR | mail.i-web.co.kr | ||||||
| PTR | www.i-web.co.kr | ||||||
| NS | ns.i-web.kr ⚠️ Not in zone NS records | ||||||
| A | 211.239.164.200🇰🇷 HOSTWAY-AS-KR211.239.164.0/24 | ||||||
| PTR | mail.i-web.co.kr | ||||||
| PTR | www.i-web.co.kr | ||||||
| NS | ns2.i-web.kr ⚠️ Not in zone NS records | ||||||
| A | 211.239.164.201🇰🇷 HOSTWAY-AS-KR211.239.164.0/24 | ||||||
| PTR | mail.i-web.co.kr | ||||||
| MX | mail.yjedulab.com ⭐ | ||||||
| A | 211.239.164.200🇰🇷 HOSTWAY-AS-KR211.239.164.0/24 | ||||||
| PTR | mail.i-web.co.kr | ||||||
| PTR | www.i-web.co.kr | ||||||
| TXT | v=spf1 ip4:211.239.164.200 ~all | ||||||
| SOA | ns.i-web.krroot@i-web.kr 2020-09-03 #15 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1781448110 | ||||||
Previously NS for
yjedulab.com |
Subdomains
mail.yjedulab.com |
Same first word
yjedulab.com |
DNS History
13 records (5 active, 8 former)
●NSns.i-web.kr2026-04-07 → 2026-06-14 · 3 obs
● 2026-04-07 03:03:32
● 2026-06-14 15:10:48
○NSns1.cafe24.co.kr2016-12-13 → 2017-09-15 · 4 obs
● 2017-09-15 08:30:06
○ 2026-04-07 03:03:32
○ 2026-06-14 15:10:48
○NSns1.cafe24.com2016-12-13 → 2017-09-15 · 4 obs
● 2017-09-15 08:30:06
○ 2026-04-07 03:03:32
○ 2026-06-14 15:10:48
●NSns1.i-web.kr2026-04-07 → 2026-06-14 · 3 obs
● 2026-04-07 03:03:32
● 2026-06-14 15:10:48
○NSns2.cafe24.co.kr2016-12-13 → 2017-09-15 · 4 obs
● 2017-09-15 08:30:06
○ 2026-04-07 03:03:32
○ 2026-06-14 15:10:48
○NSns2.cafe24.com2016-12-13 → 2017-09-15 · 4 obs
● 2017-09-15 08:30:06
○ 2026-04-07 03:03:32
○ 2026-06-14 15:10:48
●NSns2.i-web.kr2026-04-07 → 2026-06-14 · 3 obs
● 2026-04-07 03:03:32
● 2026-06-14 15:10:48
○NSyjedulab.com2016-12-13 → 2017-09-15 · 4 obs
● 2017-09-15 08:30:06
○ 2026-04-07 03:03:32
○ 2026-06-14 15:10:48
○MXbackupmail-001.cafe24.com2016-12-13 → 2016-12-13 · 3 obs
○ 2017-08-11 13:02:14
○ 2026-06-14 15:10:48
●MXmail.yjedulab.com2026-04-07 → 2026-06-14 · 3 obs
● 2026-04-07 03:03:32
● 2026-06-14 15:10:48
○MXwebmail-105.cafe24.com2016-12-13 → 2017-09-15 · 4 obs
● 2017-09-15 08:30:06
○ 2026-04-07 03:03:32
○ 2026-06-14 15:10:48
○A183.111.100.1732016-12-13 → 2017-09-15 · 4 obs
● 2017-09-15 08:30:06
○ 2026-04-07 03:03:32
○ 2026-06-14 15:10:48
●A211.239.164.2002026-04-07 → 2026-06-14 · 3 obs
● 2026-04-07 03:03:32
● 2026-06-14 15:10:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| yjedulab.com | ns1.i-web.kr, ns2.i-web.kr | - |
✅ Authoritative Response
Server:211.239.164.200
NS records: ns1.i-web.kr, ns2.i-web.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for yjedulab.com (unsigned zone)
⏱️ Timing
Total: 1184ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 211.239.164.200 |
| NS | 1 | ns.i-web.kr |
| MX | 1 | mail.yjedulab.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:211.239.164.200 ~all |
| SOA | 1 | ns.i-web.kr root.i-web.kr |
Analysis
Hierarchy
mail.yjedulab.com is a subdomain of yjedulab.com.
IP Addresses
yjedulab.com resolves to one IP address: 211.239.164.200.
ktdf.kr, mail.shmountain.com, kshl.or.kr and two other host names share IP numbers with yjedulab.com.
Name Servers
yjedulab.com has three name servers — ns1.i-web.kr, ns2.i-web.kr and ns.i-web.kr.
The name servers of yjedulab.com overlap at least partially with those of other domains — among them peace21.net, airmotion.co.kr, n-voim.com and two more.
These name servers commonly appear alongside the name servers ns2.i-web.co.kr and ns1.i-web.co.kr.
Three hostnames, each with one IP address: ns1.i-web.kr points to 211.239.164.200, ns2.i-web.kr points to 211.239.164.201 and ns.i-web.kr points to 211.239.164.200. Note that ns1.i-web.kr and ns.i-web.kr share the same IP.
The host names ns1.i-web.kr and ns.i-web.kr both resolve to 211.239.164.200 IP addresses.
Mail Servers
Mail for yjedulab.com is handled by a single mail server, mail.yjedulab.com.
mail.yjedulab.com points to one IP number — 211.239.164.200.