cotstech.com - robtex.com
cotstech.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 211.43.203.11🇰🇷 DACOM-NET211.43.192.0/19 PACNET (proxy-registered route object) | ||||||
| NS | ns.gabia.co.kr.cotstech.com ⭐ | ||||||
| NS | ns.gabia.co.kr | ||||||
| A | 43.201.170.100🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix | ||||||
| PTR | ec2-43-201-170-100.ap-northeast-2.compute.amazonaws.com | ||||||
| NS | ns.gabia.net | ||||||
| A | 121.78.117.39🇰🇷 GABIA-AS-KR121.78.117.0/24 Transit customer route announce | ||||||
| PTR | ns1.gabia.co.kr | ||||||
| A | 211.234.124.90🇰🇷 DACOM-NET211.234.0.0/17 contact jblee@aunet.nm.kr if necessary contact ojupark@aunet.nm.kr if necessary | ||||||
| NS | ns1.gabia.co.kr | ||||||
| A | 20.200.205.248🇰🇷 Microsoft20.192.0.0/10 | ||||||
| PTR | ip-20-200-205-248.defastlink.net | ||||||
| MX | wblock.cotstech.com ⭐ | ||||||
| A | 211.60.194.157🇰🇷 DACOM-NET211.60.0.0/16 contact noc@bora.net if necessary | ||||||
| PTR | wblock.cotstech.com | ||||||
| TXT | v=spf1 ip4:211.60.194.157 ip4:211.60.194.156 ~all | ||||||
| SOA | ns.gabia.co.kr.cotstech.comhosting@gabia.com serial=1709606165 | ||||||
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=1771291435 | ||||||
Previously NS for
cotstech.com |
Subdomains
Same first word
cotstech.com |
Similar names
DNS History
14 records (6 active, 8 former)
○NScotstech.com2016-12-30 → 2017-11-19 · 5 obs
● 2016-12-30 21:14:58
● 2017-11-19 11:38:26
○ 2026-03-12 01:07:14
○ 2026-03-14 11:23:16
○NSns.cotstech.com2016-12-30 → 2017-11-19 · 5 obs
● 2016-12-30 21:14:58
● 2017-11-19 11:38:26
○ 2026-03-12 01:07:14
○ 2026-03-14 11:23:16
●NSns.gabia.co.kr2015-07-13 → 2026-03-14 · 6 obs
● 2016-04-29 21:17:22
○ 2016-12-30 21:14:58
○ 2017-11-19 11:38:26
● 2026-03-12 01:07:14
● 2026-03-14 11:23:16
●NSns.gabia.co.kr.cotstech.com2026-03-12 → 2026-03-14 · 3 obs
● 2026-03-12 01:07:14
● 2026-03-14 11:23:16
●NSns.gabia.net2015-07-13 → 2026-03-14 · 6 obs
● 2016-04-29 21:17:22
○ 2016-12-30 21:14:58
○ 2017-11-19 11:38:26
● 2026-03-12 01:07:14
● 2026-03-14 11:23:16
○NSns1.cotstech.com2016-12-30 → 2017-11-19 · 5 obs
● 2016-12-30 21:14:58
● 2017-11-19 11:38:26
○ 2026-03-12 01:07:14
○ 2026-03-14 11:23:16
●NSns1.gabia.co.kr2015-07-13 → 2026-03-14 · 6 obs
● 2016-04-29 21:17:22
○ 2016-12-30 21:14:58
○ 2017-11-19 11:38:26
● 2026-03-12 01:07:14
● 2026-03-14 11:23:16
○NSns2.cotstech.com2016-12-30 → 2017-11-19 · 5 obs
● 2016-12-30 21:14:58
● 2017-11-19 11:38:26
○ 2026-03-12 01:07:14
○ 2026-03-14 11:23:16
○NSns3.cotstech.com2016-12-30 → 2017-11-19 · 5 obs
● 2016-12-30 21:14:58
● 2017-11-19 11:38:26
○ 2026-03-12 01:07:14
○ 2026-03-14 11:23:16
○MXmailapp.hiworks.co.kr2015-07-13 → 2017-11-19 · 4 obs
● 2017-11-19 11:38:26
○ 2026-03-12 01:07:14
○ 2026-03-14 11:23:16
●MXwblock.cotstech.com2026-03-12 → 2026-03-14 · 3 obs
● 2026-03-12 01:07:14
● 2026-03-14 11:23:16
○A112.175.85.2382016-12-30 → 2017-11-19 · 5 obs
● 2016-12-30 21:14:58
● 2017-11-19 11:38:26
○ 2026-03-12 01:07:14
○ 2026-03-14 11:23:16
○A121.254.168.412015-07-13 → 2016-04-29 · 4 obs
● 2016-04-29 21:17:22
○ 2016-12-30 21:14:58
○ 2026-03-14 11:23:16
●A211.43.203.112026-03-12 → 2026-03-14 · 3 obs
● 2026-03-12 01:07:14
● 2026-03-14 11:23:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net... | - |
| cotstech.com | ns.gabia.co.kr, ns1.gabia.co.kr, ns.gabia.net | - |
✅ Authoritative Response
Server: 20.200.205.248
NS records: ns.gabia.co.kr, ns1.gabia.co.kr, ns.gabia.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cotstech.com (unsigned zone)
⏱️ Timing
Total: 1277ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 211.43.203.11 |
| NS | 3 | ns.gabia.co.kr, ns1.gabia.co.kr... |
| MX | 1 | wblock.cotstech.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:211.60.194.157 ip4:211.60.194 |
| SOA | 1 | ns.gabia.co.kr.cotstech.com hosting.gabi |
Analysis
Hierarchy
cotstech.com is a parent of wblock.cotstech.com and www.cotstech.com.
IP Addresses
cotstech.com points to a single IP: 211.43.203.11.
Other host names, for instance bomonent.co.kr, www.hiex-seoulhongdae.com, plandkorea.com, galerieerd.com and navyocs.kr share IP numbers with cotstech.com.
Name Servers
cotstech.com's delegation is handled by four name servers: ns.gabia.net, ns1.gabia.co.kr, ns.gabia.co.kr and ns.gabia.co.kr.cotstech.com.
cotstech.com partially shares name servers with other domains; examples include campus-u.com, jejuin.com, accsanbon.org, sandeul.co.kr and yang0653.speedgabia.com.
these name servers are commonly used with the name servers ns1.gabia.net.
Two IPs for a host:
ns.gabia.net points to 121.78.117.39 and 211.234.124.90.
One IP per host:
ns1.gabia.co.kr points to 20.200.205.248.
ns.gabia.co.kr points to 43.201.170.100.
Mail Servers
cotstech.com is handled by a single mail server, wblock.cotstech.com.
wblock.cotstech.com points to a single IP: 211.60.194.157.