zhanghuoding.com - dns.ninja
zhanghuoding.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 221.231.140.184🇨🇳 CHINATELECOM-JIANGSU-NANJING-IDC221.231.136.0/21 CTJS NJ-IDC | ||||||
| NS | dns1.4cun.com ⭐ | ||||||
| A | 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8🇨🇳 Alibaba-Cloud2408:4005::/33 | ||||||
| A | 61.172.183.74🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC | ||||||
| NS | dns.4cun.com ⚠️ Not in zone NS records | ||||||
| NS | dns2.51dns.top ⚠️ Not in zone NS records | ||||||
| A | 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8🇨🇳 Alibaba-Cloud2408:4005::/33 | ||||||
| A | 219.138.102.210🇨🇳 CHINATELECOM-HUBEI-YICHANG-IDC219.138.102.0/24 yichang | ||||||
| MX | mail.zhanghuoding.com ⭐ | ||||||
| A | 221.231.138.63🇨🇳 CHINATELECOM-JIANGSU-NANJING-IDC221.231.136.0/21 CTJS NJ-IDC | ||||||
| PTR | oyaks.com.cn | ||||||
| SOA | dns.4cun.comadmin@zhanghuoding.com serial=1772528889 | ||||||
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=1784940822 | ||||||
Subdomains
mail.zhanghuoding.com |
Same first word
zhanghuoding.com |
DNS History
8 records (5 active, 3 former)
●NSdns.4cun.com2015-05-07 → 2026-07-25 · 7 obs
● 2026-04-13 07:47:24
○ 2026-04-17 13:54:10
● 2026-06-09 10:36:40
○ 2026-07-18 15:22:46
● 2026-07-22 23:35:36
● 2026-07-25 01:18:36
●NSdns1.4cun.com2026-02-24 → 2026-07-25 · 3 obs
● 2026-02-24 01:18:10
● 2026-07-25 01:18:36
●NSdns2.51dns.top2026-02-24 → 2026-07-25 · 3 obs
● 2026-02-24 01:18:10
● 2026-07-25 01:18:36
●MXmail.zhanghuoding.com2015-10-19 → 2026-07-25 · 7 obs
● 2026-04-13 07:47:24
○ 2026-04-17 13:54:10
● 2026-06-09 10:36:40
○ 2026-07-18 15:22:46
● 2026-07-22 23:35:36
● 2026-07-25 01:18:36
○A202.102.72.402015-05-07 → 2016-07-22 · 4 obs
● 2016-07-22 02:10:56
○ 2017-03-25 22:39:26
○ 2026-07-25 01:18:36
○A221.231.137.792017-03-25 → 2017-03-25 · 4 obs
● 2017-03-25 22:39:26
○ 2020-02-05 07:22:18
○ 2026-07-25 01:18:36
●A221.231.140.1842026-02-24 → 2026-07-25 · 8 obs
● 2026-02-24 01:18:10
● 2026-04-13 07:47:24
○ 2026-04-17 13:54:10
● 2026-06-09 10:36:40
○ 2026-07-18 15:22:46
● 2026-07-22 23:35:36
● 2026-07-25 01:18:36
○CNAMEnewresolve.huyim54.80data.net2020-02-05 → 2020-02-05 · 3 obs
○ 2026-02-24 01:18:10
○ 2026-07-25 01:18:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, d.gtld-servers.net... | - |
| zhanghuoding.com | dns1.4cun.com, dns2.51dns.top | 2 records |
✅ Authoritative Response
Server:61.172.183.74
NS records: dns1.4cun.com, dns2.51dns.top
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for zhanghuoding.com (unsigned zone)
⏱️ Timing
Total: 4962ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 221.231.140.184 |
| MX | 1 | mail.zhanghuoding.com (pri: 10) |
| SOA | 1 | dns.4cun.com admin.zhanghuoding.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns1.4cun.com, dns1.4cun.com)
Analysis
Hierarchy
mail.zhanghuoding.com is delegated beneath zhanghuoding.com.
IP Addresses
zhanghuoding.com points to a single IP number: 221.231.140.184.
Additional host names — socomm.cn, dgsuokang.com, aprodisk.com and two others — share IP numbers with zhanghuoding.com.
Name Servers
zhanghuoding.com carries NS records delegating to dns1.4cun.com, dns.4cun.com and dns2.51dns.top.
There is at least partial name server overlap between zhanghuoding.com and other domains — fystes.com, ks-xc.com.cn, sgdconn.com and two more among them.
These name servers regularly appear alongside dns3.4cun.com, dns4.51dns.top, dns2.4cun.com and 7 other name servers in NS record sets.
The two hostnames dns1.4cun.com and dns2.51dns.top each carry two IP addresses — dns1.4cun.com resolves to 61.172.183.74 and 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8, and dns2.51dns.top resolves to 219.138.102.210 and 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8, with 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8 common to both.
dns1.4cun.com along with dns2.51dns.top each resolve to 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8 IP addresses.
Mail Servers
zhanghuoding.com has one mail server: mail.zhanghuoding.com.
mail.zhanghuoding.com carries a single IP number, which is 221.231.138.63.