gstudy.cn - robtex.com
gstudy.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.239.47.180🇺🇸 HDHK38.239.32.0/20 | ||||||
| NS | ns1.nowcndns.com ⭐ | ||||||
| A | 1.193.216.204🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network | ||||||
| PTR | ip-1-193-216-204.defastlink.net | ||||||
| A | 218.98.111.129🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| PTR | ip-218-98-111-129.defastlink.net | ||||||
| A | 218.98.111.138🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| PTR | ip-218-98-111-138.defastlink.net | ||||||
| NS | ns2.nowcndns.com | ||||||
| A | 61.158.128.11🇨🇳 CHINA169-Backbone61.158.128.0/17 CNC Group CHINA169 Henan Province Network | ||||||
| PTR | 11.128.158.61.ha.cnc | ||||||
| A | 183.253.57.202🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| PTR | ip-183-253-57-202.defastlink.net | ||||||
| A | 211.99.99.38🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| PTR | ip-211-99-99-38.defastlink.net | ||||||
| SOA | ns1.nowcndns.comadmin@nowcndns.com serial=1770355371 | ||||||
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=2034456417 | ||||||
Same first word
Similar names
DNS History
8 records (3 active, 5 former)
○NSdns17.hichina.com2017-12-07 → 2017-12-07 · 3 obs
● 2017-12-07 10:28:38
○ 2026-03-13 17:35:16
○ 2026-03-13 17:35:18
○ 2026-03-13 17:35:16
○ 2026-03-13 17:35:18
○NSdns18.hichina.com2017-12-07 → 2017-12-07 · 3 obs
● 2017-12-07 10:28:38
○ 2026-03-13 17:35:16
○ 2026-03-13 17:35:18
○ 2026-03-13 17:35:16
○ 2026-03-13 17:35:18
●NSns1.nowcndns.com2026-03-13 → 2026-03-13 · 3 obs
○ 2017-12-07 10:28:38
● 2026-03-13 17:35:16
● 2026-03-13 17:35:18
● 2026-03-13 17:35:16
● 2026-03-13 17:35:18
●NSns2.nowcndns.com2026-03-13 → 2026-03-13 · 3 obs
○ 2017-12-07 10:28:38
● 2026-03-13 17:35:16
● 2026-03-13 17:35:18
● 2026-03-13 17:35:16
● 2026-03-13 17:35:18
○MXmail.skrimple.com2015-10-09 → 2015-10-09 · 3 obs
● 2015-10-09 18:17:38
○ 2015-12-12 10:27:52
○ 2026-03-13 17:35:18
○ 2015-12-12 10:27:52
○ 2026-03-13 17:35:18
○A127.0.0.12015-10-09 → 2015-10-09 · 3 obs
● 2015-10-09 18:17:38
○ 2015-12-12 10:27:52
○ 2026-03-13 17:35:18
○ 2015-12-12 10:27:52
○ 2026-03-13 17:35:18
●A38.239.47.1802026-03-13 → 2026-03-13 · 3 obs
○ 2017-12-07 10:28:38
● 2026-03-13 17:35:16
● 2026-03-13 17:35:18
● 2026-03-13 17:35:16
● 2026-03-13 17:35:18
○A47.89.58.322017-12-07 → 2017-12-07 · 4 obs
○ 2015-12-12 10:27:52
● 2017-12-07 10:28:38
○ 2026-03-13 17:35:16
○ 2026-03-13 17:35:18
● 2017-12-07 10:28:38
○ 2026-03-13 17:35:16
○ 2026-03-13 17:35:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, a.dns.cn, e.dns.cn, c.dns.cn... | - |
| gstudy.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server: 1.193.216.204
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for gstudy.cn (unsigned zone)
⏱️ Timing
Total: 3628ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.239.47.180 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
gstudy.cn resolves to one IP number: 38.239.47.180.
Name Servers
gstudy.cn's delegation uses two name servers: ns1.nowcndns.com and ns2.nowcndns.com.
gstudy.cn uses the same name server setup as other domains, such as er75j1.cn, lexma.cn, donde.cn, yunhaoxiang.cn and honpard.cn.
Host names with three IP numbers:
The host name ns1.nowcndns.com resolves to 1.193.216.204, 218.98.111.129 and 218.98.111.138.
The host name ns2.nowcndns.com resolves to 61.158.128.11, 183.253.57.202 and 211.99.99.38.