ybycom.net - robtex.com
ybycom.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 221.139.49.8🇰🇷 SKB-NET221.138.0.0/15 SK Broadband | ||||||
| NS | ns1.nurihosting.com ⭐ | ||||||
| A | 211.215.17.210🇰🇷 SKB-NET211.212.0.0/14 SK Broadband | ||||||
| NS | ns1.thechakan.kr ⚠️ Not in zone NS records | ||||||
| A | 221.139.49.17🇰🇷 SKB-NET221.138.0.0/15 SK Broadband | ||||||
| NS | ns2.thechakan.kr ⚠️ Not in zone NS records | ||||||
| A | 121.125.73.38🇰🇷 SKB-NET121.125.0.0/16 SK Broadband | ||||||
| MX | mailapp.hiworks.co.kr ⭐ | ||||||
| A | 45.120.71.59🇰🇷 DACOM-NET45.120.71.0/24 | ||||||
| PTR | mailapp.hiworks.co.kr | ||||||
| A | 121.254.168.55🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary | ||||||
| PTR | mailapp.hiworks.co.kr | ||||||
| A | 211.47.76.59🇰🇷 DACOM-NET211.47.76.0/24 proxy for HANARO TELECOM route | ||||||
| PTR | mailapp.hiworks.co.kr | ||||||
| TXT | v=spf1 include:_spf.hiworks.co.kr ~all | ||||||
| SOA | ns1.nurihosting.comsupport@nurihosting.com 2023-01-26 #1 | ||||||
net
| 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=1774563292 | ||||||
Subdomains
mail.ybycom.net |
Same first word
ybycom.net |
DNS History
13 records (5 active, 8 former)
○NSns.gabia.co.kr2015-06-25 → 2017-03-19 · 4 obs
● 2017-03-19 08:46:34
○ 2020-03-14 02:49:06
○ 2026-03-26 22:17:24
○NSns.gabia.net2017-03-19 → 2017-03-19 · 4 obs
● 2017-03-19 08:46:34
○ 2020-03-14 02:49:06
○ 2026-03-26 22:17:24
○NSns1.gabia.co.kr2015-06-25 → 2017-03-19 · 4 obs
● 2017-03-19 08:46:34
○ 2020-03-14 02:49:06
○ 2026-03-26 22:17:24
●NSns1.nurihosting.com2020-03-14 → 2026-03-26 · 3 obs
● 2020-03-14 02:49:06
● 2026-03-26 22:17:24
●NSns1.thechakan.kr2026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 22:17:24
○NSns2.nurihosting.com2020-03-14 → 2020-03-14 · 3 obs
● 2020-03-14 02:49:06
○ 2026-03-26 22:17:24
●NSns2.thechakan.kr2026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 22:17:24
○MXmail.ybycom.net2017-03-19 → 2020-03-14 · 4 obs
● 2017-03-19 08:46:34
● 2020-03-14 02:49:06
○ 2026-03-26 22:17:24
●MXmailapp.hiworks.co.kr2015-06-25 → 2026-03-26 · 5 obs
● 2016-06-21 08:31:18
○ 2017-03-19 08:46:34
○ 2020-03-14 02:49:06
● 2026-03-26 22:17:24
○A121.78.114.52015-06-25 → 2016-06-21 · 4 obs
● 2016-06-21 08:31:18
○ 2017-03-19 08:46:34
○ 2026-03-26 22:17:24
○A121.78.197.252017-03-19 → 2017-03-19 · 4 obs
● 2017-03-19 08:46:34
○ 2020-03-14 02:49:06
○ 2026-03-26 22:17:24
○A221.139.49.42020-03-14 → 2020-03-14 · 3 obs
● 2020-03-14 02:49:06
○ 2026-03-26 22:17:24
●A221.139.49.82026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 22:17:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| ybycom.net | ns1.thechakan.kr, ns2.thechakan.kr | - |
✅ Authoritative Response
Server:121.125.73.38
NS records: ns1.thechakan.kr, ns2.thechakan.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ybycom.net (unsigned zone)
⏱️ Timing
Total: 1858ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 221.139.49.8 |
| MX | 1 | mailapp.hiworks.co.kr (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.hiworks.co.kr ~all |
| SOA | 1 | ns1.nurihosting.com support.nurihosting. |
Analysis
Hierarchy
mail.ybycom.net has ybycom.net as its parent.
IP Addresses
ybycom.net maps to IP address 221.139.49.8.
Other host names, for instance www.techwonled.com, soonhanwoo.com, atindus.com, sungwonsystem.com and kknet.kr share IP numbers with ybycom.net.
Name Servers
ybycom.net is delegated to name servers ns1.nurihosting.com, ns1.thechakan.kr and ns2.thechakan.kr.
ybycom.net at least partially shares name servers with other domains such as imbanner.kr, hsfence.co.kr, rockitsuda.com, scraperp.com and ncyok.or.kr.
These name servers are often used together with ns2.nurihosting.com, ns1.aramschool.co.kr, ns2.aramschool.co.kr, ns1.bver.co.kr, ns2.bver.co.kr, ns1.anybuild.co.kr, ns2.anybuild.co.kr, ns1.web-store.kr, ns2.web-store.kr and ns1.hmandoo.co.kr.
Host names with a single IP:
ns1.nurihosting.com points to 211.215.17.210
ns1.thechakan.kr points to 221.139.49.17
ns2.thechakan.kr points to 121.125.73.38
Mail Servers
ybycom.net is handled by a single mail server, mailapp.hiworks.co.kr.
ybycom.net shares the same mail server setup as other domains, including molmater.com, queensbucket.co.kr, gnco.co.kr, paxind.co.kr and bebeok.com.
ybycom.net shares some mail servers with other domains, at least partially, for instance jcbio.co.kr.
mailapp.hiworks.co.kr points to three IP numbers: 45.120.71.59, 121.254.168.55 and 211.47.76.59.