dc-chem.cn - robtex.com
dc-chem.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 211.152.42.136🇨🇳 SHANGHAITELECOM211.152.40.0/21 SHIDC | ||||||
| PTR | master.mail117.cn4e.com | ||||||
| NS | ns1.chinanetsun.com ⭐ | ||||||
| A | 240e:96c:200:2e03::7🇨🇳 SHANGHAITELECOM240e:96c::/32 Chinanet Shanghai | ||||||
| A | 180.235.66.112🇨🇳 SHANGHAITELECOM180.235.64.0/22 Chinanet Shanghai | ||||||
| NS | ns2.chinanetsun.com | ||||||
| A | 240e:96c:200:2e03::70🇨🇳 SHANGHAITELECOM240e:96c::/32 Chinanet Shanghai | ||||||
| A | 222.73.8.7🇨🇳 SHANGHAITELECOM222.73.8.0/21 SHIDC | ||||||
| MX | mx4.chinanetsun.com ⭐ | ||||||
| A | 180.235.66.99🇨🇳 SHANGHAITELECOM180.235.64.0/22 Chinanet Shanghai | ||||||
| PTR | m99.chinanetsun.com | ||||||
| MX | mx4a.chinanetsun.com(20) | ||||||
| A | 162.14.140.149🇨🇳 TENCENT-NET-AP162.14.128.0/20 | ||||||
| TXT | v=spf1 include:spf.chinanetsun.com -all | ||||||
| SOA | ns1.chinanetsun.comtask@netsun.com 2007-01-16 #10 | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| 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=2034704811 | ||||||
Same first word
dc-chem.cn |
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.chinanetsun.com2015-08-14 → 2026-04-24 · 2 obs
● 2026-04-24 01:18:58
●NSns2.chinanetsun.com2015-08-14 → 2026-04-24 · 2 obs
● 2026-04-24 01:18:58
●MXmx4.chinanetsun.com2015-08-14 → 2026-04-24 · 2 obs
● 2026-04-24 01:18:58
●MXmx4a.chinanetsun.com2015-08-14 → 2026-04-24 · 2 obs
● 2026-04-24 01:18:58
●A211.152.42.1362015-08-14 → 2026-04-24 · 2 obs
● 2026-04-24 01:18:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, c.dns.cn, d.dns.cn, e.dns.cn... | - |
| dc-chem.cn | ns1.chinanetsun.com, ns2.chinanetsun.com | - |
✅ Authoritative Response
Server:180.235.66.112
NS records: ns1.chinanetsun.com, ns2.chinanetsun.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dc-chem.cn (unsigned zone)
⏱️ Timing
Total: 4050ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 211.152.42.136 |
| NS | 2 | ns2.chinanetsun.com, ns1.chinanetsun.com |
| MX | 2 | mx4.chinanetsun.com (pri: 10), mx4a.chinanetsun.com (pri: 20) |
| TXT | 1 | v=spf1 include:spf.chinanetsun.com -all |
| SOA | 1 | ns1.chinanetsun.com task.netsun.com |
Analysis
IP Addresses
dc-chem.cn maps to IP address 211.152.42.136.
Other host names, for example, cnsudian.com share IP numbers with dc-chem.cn.
Name Servers
Two name servers ns1.chinanetsun.com and ns2.chinanetsun.com are delegated to dc-chem.cn.
dc-chem.cn uses the same name server configuration as other domains, such as zzmsm.com, xycschem.com, kschem.cn, whfzzc.com and euxiang.com.
dc-chem.cn at least partially shares name servers with other domains, including syefj.com, sllxj.cn and chemik.com.
Host names with two IPs:
ns1.chinanetsun.com points to 240e:96c:200:2e03::7 and 180.235.66.112.
ns2.chinanetsun.com points to 240e:96c:200:2e03::70 and 222.73.8.7.
Mail Servers
Two mail servers handle dc-chem.cn: mx4.chinanetsun.com and mx4a.chinanetsun.com.
dc-chem.cn shares the same mail server setup as other domains, including khjn.com, kuayuechem.com, fenlianchem.com, bulk-chem.com and fluochem.com.cn.
dc-chem.cn shares mail servers with other domains at least in part, for instance fr-china.com, xldchem.com, ocolor.com, ajachem.com and sinyear.com.
Host names with a single IP address:
mx4.chinanetsun.com points to 180.235.66.99
mx4a.chinanetsun.com points to 162.14.140.149