codingfirst.cn - robtex.com
codingfirst.cn
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=2034546407 | ||||||
Same first word
codingfirst.org |
codingfirst.cn |
Similar names
DNS History
7 records (5 active, 2 former)
●NSdns31.hichina.com2026-03-11 → 2026-03-23 · 3 obs
● 2026-03-11 07:43:38
● 2026-03-23 19:09:02
●NSdns32.hichina.com2026-03-11 → 2026-03-23 · 3 obs
● 2026-03-11 07:43:38
● 2026-03-23 19:09:02
○NSvip1.alidns.com2018-08-31 → 2018-08-31 · 3 obs
○ 2026-03-11 07:43:38
○ 2026-03-23 19:09:02
○NSvip2.alidns.com2018-08-31 → 2018-08-31 · 3 obs
○ 2026-03-11 07:43:38
○ 2026-03-23 19:09:02
●MXmxn.mxhichina.com2018-08-31 → 2026-03-23 · 2 obs
● 2026-03-23 19:09:02
●MXmxw.mxhichina.com2018-08-31 → 2026-03-23 · 2 obs
● 2026-03-23 19:09:02
●A47.91.170.2142018-08-31 → 2026-03-23 · 2 obs
● 2026-03-23 19:09:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| codingfirst.cn | dns31.hichina.com, dns32.hichina.com | - |
✅ Authoritative Response
Server:47.118.199.197
NS records: dns31.hichina.com, dns32.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for codingfirst.cn (unsigned zone)
⏱️ Timing
Total: 1756ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 47.91.170.214 |
| NS | 2 | dns32.hichina.com, dns31.hichina.com |
| MX | 2 | mxw.mxhichina.com (pri: 10), mxn.mxhichina.com (pri: 5) |
| TXT | 1 | v=spf1 include:spf.mxhichina.com -all |
| SOA | 1 | dns31.hichina.com hostmaster.hichina.com |
Analysis
IP Addresses
codingfirst.cn resolves to a single IP: 47.91.170.214.
Name Servers
codingfirst.cn has two name servers: dns31.hichina.com and dns32.hichina.com.
codingfirst.cn shares the same name server setup as other domains, for example fawis.top, dffhsoft.com, kunshanmarathon.com, nk7.cn and tctrade.net.
codingfirst.cn at least partially shares name servers with other domains; for example k-1online.com and tengxunyouxiang.com; selfawareness.cn and shua1.com.
These name servers are commonly used together with expirens3.hichina.com and expirens4.hichina.com.
Host names with nine IP numbers:
dns31.hichina.com points to 2408:4009:501::39, 39.96.153.39, 39.96.153.59, 47.118.199.199, 47.118.199.219, 120.76.107.39, 120.76.107.59, 139.224.142.99 and 139.224.142.109.
dns32.hichina.com points to 2408:4009:501::40, 39.96.153.37, 39.96.153.62, 47.118.199.197, 47.118.199.221, 120.76.107.37, 120.76.107.62, 139.224.142.102 and 139.224.142.107.
Mail Servers
codingfirst.cn is served by two mail servers: mxn.mxhichina.com and mxw.mxhichina.com.
codingfirst.cn shares the mail server setup with other domains, for example hzims.com, cmschina.net, gipbr.net, chuntaoinvestment.com and jiai.cn.
codingfirst.cn shares some mail servers with other domains, at least partially; for instance safetork.com, stptec.com, smartron.net, yonlit.com and 0715zp.com.
these mail servers are commonly used alongside the mail servers mxdomain.qq.com.
Host names with two IP numbers: mxn.mxhichina.com points to: 47.246.136.231 and 47.246.137.47.
Host names with one IP number: mxw.mxhichina.com points to: 47.246.99.195.