chinasigma.com - robtex.com
chinasigma.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 159.226.160.7🇨🇳 CSTNET-AS-AP159.226.160.0/24 | ||||||
| NS | ns1.sfn.cn ⭐ | ||||||
| A | 111.63.77.29🇨🇳 CMNET-V4HEBEI-AS-AP111.63.64.0/20 CMI (Customer Route) | ||||||
| NS | ns2.sfn.cn | ||||||
| A | 101.37.119.99🇨🇳 Alibaba-Cloud101.37.0.0/17 | ||||||
| A | 111.63.77.30🇨🇳 CMNET-V4HEBEI-AS-AP111.63.64.0/20 CMI (Customer Route) | ||||||
| MX | mx.cstnet.cn ⭐ | ||||||
| A | 159.226.251.12🇨🇳 CSTNET-AS-AP159.226.0.0/16 CSTNET's IP | ||||||
| PTR | mx.cstnet.cn | ||||||
| SOA | ns1.sfn.cnroot@ns1.sfn.cn 2026-03-22 #22 | ||||||
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=1771291435 | ||||||
Subdomains
Same first word
chinasigma.com |
Similar names
DNS History
9 records (4 active, 5 former)
●NSns1.sfn.cn2015-10-22 → 2026-03-22 · 3 obs
● 2015-10-22 18:05:34
● 2026-03-22 16:28:12
○NSns100.sanfront.com.cn2015-06-11 → 2015-06-11 · 3 obs
○ 2015-10-22 18:05:34
○ 2026-03-22 16:28:12
●NSns2.sfn.cn2015-10-22 → 2026-03-22 · 3 obs
● 2015-10-22 18:05:34
● 2026-03-22 16:28:12
○NSns200.sanfront.com.cn2015-06-11 → 2015-06-11 · 3 obs
○ 2015-10-22 18:05:34
○ 2026-03-22 16:28:12
○NSns400.sanfront.com.cn2015-06-11 → 2015-06-11 · 3 obs
○ 2015-10-22 18:05:34
○ 2026-03-22 16:28:12
○MX159.226.160.102015-10-22 → 2017-02-14 · 5 obs
● 2015-10-22 18:05:34
● 2017-02-14 08:46:10
○ 2020-04-04 00:13:20
○ 2026-03-22 16:28:12
○MX159.226.160.102015-06-11 → 2015-06-11 · 3 obs
○ 2015-10-22 18:05:34
○ 2026-03-22 16:28:12
●MXmx.cstnet.cn2020-04-04 → 2026-03-22 · 3 obs
● 2020-04-04 00:13:20
● 2026-03-22 16:28:12
●A159.226.160.72020-04-04 → 2026-03-22 · 2 obs
● 2026-03-22 16:28:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net, f.gtld-servers.net... | - |
| chinasigma.com | ns1.sfn.cn, ns2.sfn.cn | - |
✅ Authoritative Response
Server: 111.63.77.30
NS records: ns1.sfn.cn, ns2.sfn.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for chinasigma.com (unsigned zone)
⏱️ Timing
Total: 3396ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 159.226.160.7 |
| NS | 2 | ns1.sfn.cn, ns2.sfn.cn |
| MX | 1 | mx.cstnet.cn (pri: 1) |
| SOA | 1 | ns1.sfn.cn root.ns1.sfn.cn |
Analysis
Hierarchy
chinasigma.com is the parent of www.chinasigma.com and mail.chinasigma.com.
IP Addresses
chinasigma.com resolves to a single IP: 159.226.160.7.
Other host names share IP numbers with chinasigma.com; for instance www.chinasigma.com.
Name Servers
chinasigma.com has two name servers: ns1.sfn.cn and ns2.sfn.cn.
chinasigma.com shares the same name server setup as other domains, for example kingshine.com.cn, cfcn.cn, jincai.sh.cn, chinasun.com.cn and xinhuagroup.com.cn.
chinasigma.com at least partially shares name servers with other domains; for example yancheng.gov.cn and tobst.cn; ensign.com.cn and jiexi.gov.cn.
Host names with two IP numbers: ns2.sfn.cn points to: 101.37.119.99 and 111.63.77.30.
Host names with one IP number: ns1.sfn.cn points to: 111.63.77.29.
Mail Servers
chinasigma.com is handled by a single mail server, mx.cstnet.cn.
chinasigma.com shares the mail server setup with other domains, for example g-cloud.com.cn, time.ac.cn, gscas.ac.cn, sippe.ac.cn and spaceweather.ac.cn.
Host name mx.cstnet.cn points to IP 159.226.251.12.