coursetrip.com - dns.ninja
coursetrip.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 23.224.201.195🇺🇸 CNSERVERSLLC23.224.201.0/24 | ||||||
| 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 | ||||||
| MX | mxbiz1.qq.com ⭐ | ||||||
| MX | mxbiz2.qq.com(10) | ||||||
| SOA | a.ezdnscenter.comdnsadmin@ezdnscenter.com serial=1751342704 | ||||||
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=1786553439 | ||||||
Same first word
coursetrip.net |
coursetrip.com |
Similar names
DNS History
12 records (5 active, 7 former)
●NSa.ezdnscenter.com2026-07-10 → 2026-08-12 · 3 obs
● 2026-07-10 18:18:02
● 2026-08-12 17:10:32
●NSb.ezdnscenter.com2026-07-10 → 2026-08-12 · 3 obs
● 2026-07-10 18:18:02
● 2026-08-12 17:10:32
○NSns1.ezdnscenter.com2015-08-06 → 2017-04-04 · 4 obs
● 2017-04-04 16:32:58
○ 2026-07-10 18:18:02
○ 2026-08-12 17:10:32
○NSns2.ezdnscenter.com2015-08-06 → 2017-04-04 · 4 obs
● 2017-04-04 16:32:58
○ 2026-07-10 18:18:02
○ 2026-08-12 17:10:32
○NSns3.ezdnscenter.com2015-08-06 → 2017-04-04 · 4 obs
● 2017-04-04 16:32:58
○ 2026-07-10 18:18:02
○ 2026-08-12 17:10:32
○NSns4.ezdnscenter.com2015-08-06 → 2017-04-04 · 4 obs
● 2017-04-04 16:32:58
○ 2026-07-10 18:18:02
○ 2026-08-12 17:10:32
○NSns5.ezdnscenter.com2015-08-06 → 2017-04-04 · 4 obs
● 2017-04-04 16:32:58
○ 2026-07-10 18:18:02
○ 2026-08-12 17:10:32
○NSns6.ezdnscenter.com2015-08-06 → 2017-04-04 · 4 obs
● 2017-04-04 16:32:58
○ 2026-07-10 18:18:02
○ 2026-08-12 17:10:32
●A23.224.201.1952026-07-10 → 2026-08-12 · 3 obs
● 2026-07-10 18:18:02
● 2026-08-12 17:10:32
○A23.234.26.1712017-04-04 → 2017-04-04 · 3 obs
○ 2026-07-10 18:18:02
○ 2026-08-12 17:10:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net... | - |
| coursetrip.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 coursetrip.com (unsigned zone)
⏱️ Timing
Total: 2073ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 23.224.201.195 |
| NS | 2 | a.ezdnscenter.com, b.ezdnscenter.com |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| 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
coursetrip.com points to a single IP number: 23.224.201.195.
Additional host names — precision-ad.com, sinoriko.com, yanna.com and two others — share IP numbers with coursetrip.com.
Name Servers
coursetrip.com is served by two delegated name servers, a.ezdnscenter.com and b.ezdnscenter.com.
coursetrip.com shares its name server setup with other domains, including xiandiu.com, pli6.com, tzjianghai.com and two others.
Host names with two IP numbers:
b.ezdnscenter.com maps to two IP addresses — 183.253.57.210 and 211.99.99.58.
Host names pointing to a single IP address:
a.ezdnscenter.com points to the IP address 218.98.111.140.
Mail Servers
coursetrip.com has two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.
coursetrip.com shares the same mail server setup as other domains, including weikavip.com, moxiu.net, 360jizhang.com and two others.
coursetrip.com has at least some mail servers in common with other domains, such as zallfts.com, zowhaw-tw.asia, ysdcom.com and 80macau.com.