ncourses.com - robtex.com
ncourses.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 114.80.213.246🇨🇳 SHANGHAITELECOM114.80.212.0/22 SHIDC | ||||||
| NS | a.ezdnscenter.com ⭐ | ||||||
| A | 218.98.111.140🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | b.ezdnscenter.com | ||||||
| A | 183.253.57.210🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.58🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | a.ezdnscenter.comdnsadmin@ezdnscenter.com serial=1751342709 | ||||||
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=1774416637 | ||||||
Same first word
ncourses.com |
Similar names
rcsuenos.com.uy |
coursens.eu |
scoresun.com |
sensorcu.com |
conurses.com |
cusensro.blogspot.com |
snuscore.com |
cnsourse.com |
securons.com |
ucsensor.com |
coursens.com |
conesrus.com |
cursosen.com |
DNS History
9 records (3 active, 6 former)
●NSa.ezdnscenter.com2026-03-25 → 2026-03-25 · 3 obs
○ 2017-02-07 19:54:32
● 2026-03-25 05:35:24
● 2026-03-25 05:35:26
● 2026-03-25 05:35:24
● 2026-03-25 05:35:26
●NSb.ezdnscenter.com2026-03-25 → 2026-03-25 · 3 obs
○ 2017-02-07 19:54:32
● 2026-03-25 05:35:24
● 2026-03-25 05:35:26
● 2026-03-25 05:35:24
● 2026-03-25 05:35:26
○NSns10.cdncenter.com2015-07-24 → 2017-02-07 · 4 obs
● 2015-07-24 06:27:24
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
○NSns11.cdncenter.com2015-07-24 → 2017-02-07 · 4 obs
● 2015-07-24 06:27:24
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
○NSns12.cdncenter.com2015-07-24 → 2017-02-07 · 4 obs
● 2015-07-24 06:27:24
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
○NSns7.cdncenter.com2015-07-24 → 2017-02-07 · 4 obs
● 2015-07-24 06:27:24
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
○NSns8.cdncenter.com2015-07-24 → 2017-02-07 · 4 obs
● 2015-07-24 06:27:24
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
○NSns9.cdncenter.com2015-07-24 → 2017-02-07 · 4 obs
● 2015-07-24 06:27:24
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
● 2017-02-07 19:54:32
○ 2026-03-25 05:35:24
○ 2026-03-25 05:35:26
●A114.80.213.2462015-07-24 → 2026-03-25 · 2 obs
● 2015-07-24 06:27:24
● 2026-03-25 05:35:26
● 2026-03-25 05:35:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, l.gtld-servers.net, i.gtld-servers.net, h.gtld-servers.net... | - |
| ncourses.com | a.ezdnscenter.com, b.ezdnscenter.com | 3 records |
✅ Authoritative Response
Server:183.253.57.210
NS records: a.ezdnscenter.com, b.ezdnscenter.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ncourses.com (unsigned zone)
⏱️ Timing
Total: 3933ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 114.80.213.246 |
| NS | 2 | a.ezdnscenter.com, b.ezdnscenter.com |
| SOA | 1 | a.ezdnscenter.com dnsadmin.ezdnscenter.c |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (a.ezdnscenter.com, b.ezdnscenter.com, b.ezdnscenter.com)
Analysis
IP Addresses
ncourses.com points to a single IP number: 114.80.213.246.
Name Servers
Delegation for ncourses.com rests with two name servers, a.ezdnscenter.com and b.ezdnscenter.com.
ncourses.com shares the same name server setup as other domains, including sublivagroup.com, rmexport.com, szfhgas.com, sxxg.cn and finelystyle.com.
Host names with two IP numbers:
b.ezdnscenter.com points to 183.253.57.210 and 211.99.99.58.
Host names with one IP number:
a.ezdnscenter.com points to 218.98.111.140.