sddt.com.cn - robtex.com
sddt.com.cn
com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2030509937 | ||||||
Subdomains
www.sddt.com.cn |
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●NSns15.xincache.com2017-01-01 → 2026-04-12 · 2 obs
● 2026-04-12 01:38:50
●NSns16.xincache.com2017-01-01 → 2026-04-12 · 2 obs
● 2026-04-12 01:38:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, d.dns.cn, a.dns.cn, e.dns.cn... | - |
| sddt.com.cn | ns15.xincache.com, ns16.xincache.com | - |
✅ Authoritative Response
Server:117.89.178.173
NS records: ns15.xincache.com, ns16.xincache.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sddt.com.cn (unsigned zone)
⏱️ Timing
Total: 819ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns16.xincache.com, ns15.xincache.com |
| MX | 1 | mxbiz2.qq.com (pri: 20) |
| SOA | 1 | ns15.xincache.com enterprise1dnsadmin.dn |
Analysis
Hierarchy
sddt.com.cn is the parent of www.sddt.com.cn.
Name Servers
sddt.com.cn is delegated to two name servers ns15.xincache.com and ns16.xincache.com.
sddt.com.cn shares the same name server setup as other domains, for instance nbpkbz.com, dissona.mobi, 52luosi.com, zytd168.com and p3ne.com.
sddt.com.cn at least partially shares name servers with other domains, for instance sztechand.com, liangzemu.com, 438500.net, hexzechina.com and qfcgroup.com.
these name servers are commonly used alongside ns11.xincache.com.
Eight IP numbers for a host:
ns15.xincache.com points to: 2402:4e00:1470:2::e, 2402:4e00:1730::e, 1.12.0.4, 36.155.149.180, 112.80.181.45, 117.89.178.173, 125.94.59.210 and 129.211.176.209.
Seven IP numbers for a host:
ns16.xincache.com points to: 2402:4e00:111:fff::c, 1.12.0.1, 36.155.149.176, 112.80.181.111, 117.89.178.184, 129.211.176.239 and 163.177.5.23.
Mail Servers
sddt.com.cn is handled by a single mail server, mxbiz2.qq.com.
sddt.com.cn shares the same mail server setup as other domains, for instance eduholiday.com, pxtar.com, cific.com.cn, anymap.top and jujube-tree.com.
sddt.com.cn shares some mail servers with other domains, at least partially, for instance yixinou.com, monlok.com, de-cn.com, 9lady.com and wuhues.com.
these mail servers are commonly used with the mail servers mxbiz1.qq.com.