gcoaching.cn - robtex.com
gcoaching.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 139.217.24.187🇨🇳 BLUECLOUD139.217.0.0/17 Microsoft China | ||||||
| NS | ns11.dnszi.com ⭐ | ||||||
| A | 121.78.251.24🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| NS | ns22.dnszi.com | ||||||
| A | 121.78.72.44🇰🇷 KINXIDC-AS-KR121.78.72.0/24 KINX-IDC | ||||||
| PTR | ns22.dnszi.com | ||||||
| NS | ns37.dnszi.com | ||||||
| A | 58.120.225.177🇰🇷 SKB-NET58.120.0.0/13 auto-generated route object for 58.120.0.0/13 | ||||||
| PTR | ns37.dnszi.com | ||||||
| NS | ns53.dnszi.com | ||||||
| A | 27.1.16.85🇰🇷 DAOU-AS-KR27.1.16.0/22 DAOU Tech | ||||||
| PTR | ns53.dnszi.com | ||||||
| NS | ns77.dnszi.com | ||||||
| A | 121.78.251.30🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| MX | mail.gcoaching.cn ⭐ | ||||||
| A | 61.109.252.154🇰🇷 HOSTWAY-AS-KR61.109.252.0/24 | ||||||
| SOA | ns11.dnszi.comroot@dnszi.com 2018-11-18 #1 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2035119180 | ||||||
Subdomains
mail.gcoaching.cn |
Same first word
gcoaching.com |
gcoaching.cn |
Similar names
DNS History
9 records (7 active, 2 former)
●MXmail.gcoaching.cn2015-06-28 → 2026-08-01 · 5 obs
● 2017-03-27 06:38:36
○ 2026-07-11 14:53:26
● 2026-08-01 04:42:50
● 2026-08-01 04:42:52
●A139.217.24.1872015-12-14 → 2026-08-01 · 6 obs
● 2015-12-14 03:00:24
● 2017-03-27 06:38:36
○ 2026-07-11 14:53:26
● 2026-08-01 04:42:50
● 2026-08-01 04:42:52
○A223.4.117.1722015-06-28 → 2015-06-28 · 3 obs
○ 2015-10-11 08:32:44
○ 2026-08-01 04:42:52
○A42.159.29.1822015-10-11 → 2015-10-11 · 4 obs
● 2015-10-11 08:32:44
○ 2015-12-14 03:00:24
○ 2026-08-01 04:42:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| gcoaching.cn | ns11.dnszi.com, ns22.dnszi.com, ns37.dnszi.com, ns53.dnszi.com... | - |
✅ Authoritative Response
Server:121.78.251.24
NS records: ns11.dnszi.com, ns22.dnszi.com, ns37.dnszi.com, ns53.dnszi.com, ns77.dnszi.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 4372ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 139.217.24.187 |
| NS | 5 | ns37.dnszi.com, ns53.dnszi.com... |
| MX | 1 | mail.gcoaching.cn (pri: 10) |
| SOA | 1 | ns11.dnszi.com root.dnszi.com |
Analysis
Hierarchy
gcoaching.cn is a parent domain of mail.gcoaching.cn.
IP Addresses
gcoaching.cn points to a single IP number: 139.217.24.187.
Name Servers
Delegation for gcoaching.cn is to five name servers: ns11.dnszi.com, ns22.dnszi.com, ns37.dnszi.com and two others.
gcoaching.cn shares at least some of its name servers with other domains, including 2jaeho.com, sansung.in, mswa.or.kr and two others.
These name servers are frequently paired with the name servers ns53.dnszi.com and ns77.dnszi.com.
Host names pointing to a single IP address:
ns11.dnszi.com has the IP address 121.78.251.24.
ns22.dnszi.com has the IP address 121.78.72.44.
ns37.dnszi.com has the IP address 58.120.225.177.
ns53.dnszi.com has the IP address 27.1.16.85.
ns77.dnszi.com has the IP address 121.78.251.30.
Mail Servers
gcoaching.cn has one mail server: mail.gcoaching.cn.
mail.gcoaching.cn directs to just one IP number, 61.109.252.154.