codingfirst.cn - dns.ninja
codingfirst.cn
| DNSSEC | β οΈ Not signed | ||||||
| A | 47.91.170.214ππ° Alibaba-Cloud47.91.128.0/18 Alibaba Cloud | ||||||
| NS | dns31.hichina.com β | ||||||
| A | 2408:4009:501::39π¨π³ Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.39π¨π³ Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.59π¨π³ Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.199π¨π³ Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.219π¨π³ Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.39π¨π³ Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.59π¨π³ Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.99π¨π³ Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.109π¨π³ Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| NS | dns32.hichina.com | ||||||
| A | 2408:4009:501::40π¨π³ Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.37π¨π³ Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.62π¨π³ Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.197π¨π³ Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.221π¨π³ Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.37π¨π³ Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.62π¨π³ Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.102π¨π³ Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.107π¨π³ Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| MX | mxn.mxhichina.com β | ||||||
| A | 47.246.136.231πΊπΈ Alibaba-Cloud47.246.136.0/22 Alibaba CLoud | ||||||
| PTR | cz-clare.com | ||||||
| PTR | reachsmartdwell.com | ||||||
| PTR | wevolt.tech | ||||||
| A | 47.246.137.47πΊπΈ Alibaba-Cloud47.246.136.0/22 Alibaba CLoud | ||||||
| MX | mxw.mxhichina.com(10) | ||||||
| A | 47.246.99.195πΊπΈ Alibaba-Cloud47.246.96.0/22 Proxy-registered route object | ||||||
| PTR | reachsmartdwell.com | ||||||
| TXT | v=spf1 include:spf.mxhichina.com -all | ||||||
| SOA | dns31.hichina.comhostmaster@hichina.com 2026-08-26 #17 | ||||||
cn
| DNSSEC | π Signed (DS record present) | ||||||
| NS | a.dns.cn β | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net β οΈ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2035234787 | ||||||
Same first word
codingfirst.org |
codingfirst.kr |
codingfirst.cn |
Similar names
Previous names
Next names
DNS History
7 records (5 active, 2 former)
βNSdns31.hichina.com2026-03-11 β 2026-08-28 Β· 3 obs
β 2026-03-11 07:43:38
β 2026-08-28 22:26:44
βNSdns32.hichina.com2026-03-11 β 2026-08-28 Β· 3 obs
β 2026-03-11 07:43:38
β 2026-08-28 22:26:44
βNSvip1.alidns.com2018-08-31 β 2018-08-31 Β· 3 obs
β 2026-03-11 07:43:38
β 2026-08-28 22:26:44
βNSvip2.alidns.com2018-08-31 β 2018-08-31 Β· 3 obs
β 2026-03-11 07:43:38
β 2026-08-28 22:26:44
βMXmxn.mxhichina.com2018-08-31 β 2026-08-28 Β· 4 obs
β 2026-08-28 10:32:24
β 2026-08-28 22:26:40
β 2026-08-28 22:26:44
βMXmxw.mxhichina.com2018-08-31 β 2026-08-28 Β· 4 obs
β 2026-08-28 10:32:24
β 2026-08-28 22:26:40
β 2026-08-28 22:26:44
βA47.91.170.2142018-08-31 β 2026-08-28 Β· 4 obs
β 2026-08-28 10:32:24
β 2026-08-28 22:26:40
β 2026-08-28 22:26:44
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | 11 records |
| codingfirst.cn | dns31.hichina.com, dns32.hichina.com | - |
β Authoritative Response
Server:139.224.142.99
NS records: dns31.hichina.com, dns32.hichina.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for codingfirst.cn (unsigned zone)
β±οΈ Timing
Total: 1501ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 47.91.170.214 |
| NS | 2 | dns31.hichina.com, dns32.hichina.com |
| MX | 2 | mxn.mxhichina.com (pri: 5), mxw.mxhichina.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.mxhichina.com -all |
| SOA | 1 | dns31.hichina.com hostmaster.hichina.com |
π Glue Records Collected
Total: 11
In-bailiwick: 10 (a.dns.cn, b.dns.cn, c.dns.cn...)
Out-of-bailiwick: 1 (ns.cernet.net)
Analysis
IP Addresses
codingfirst.cn directs to one IP number, which is 47.91.170.214.
Name Servers
codingfirst.cn is served by two delegated name servers, dns31.hichina.com and dns32.hichina.com.
codingfirst.cn has the same name server delegation as a number of other domains, such as 98kk.xyz, dffhsoft.com, kunshanmarathon.com and two more.
At least some of codingfirst.cn's name servers are shared with other domains, for example gatsbyjs.cn and baizeit.com.
Host names resolving to 9 IP numbers:
dns31.hichina.com carries IP addresses 39.96.153.39, 39.96.153.59 and 47.118.199.199, with 6 other addresses beyond those.
dns32.hichina.com carries IP addresses 39.96.153.37, 39.96.153.62 and 47.118.199.197, with 6 other addresses beyond those.
Mail Servers
The MX records for codingfirst.cn point to two mail servers: mxn.mxhichina.com and mxw.mxhichina.com.
codingfirst.cn has the same mail server arrangement as a number of other domains, for example neomates.com, coolmarch.com.cn, hzims.com and two more.
codingfirst.cn shares at least some of its mail servers with other domains β for example safetork.com, stptec.com, smartron.net and two more.
Hosts with two IP numbers each:
mxn.mxhichina.com maps to two IP addresses β 47.246.136.231 and 47.246.137.47.
Hosts that resolve to one IP address:
mxw.mxhichina.com points to the IP address 47.246.99.195.