cndhe.com - robtex.com
cndhe.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 221.231.138.16🇨🇳 CHINATELECOM-JIANGSU-NANJING-IDC221.231.136.0/21 CTJS NJ-IDC | ||||||
| NS | cndhe.com ⭐ | ||||||
| A | 221.231.138.16🇨🇳 CHINATELECOM-JIANGSU-NANJING-IDC221.231.136.0/21 CTJS NJ-IDC | ||||||
| NS | dns1.51.net ⚠️ Not in zone NS records | ||||||
| A | 49.4.6.171🇨🇳 HWCSNET49.4.0.0/20 Huawei Technologies Co., Ltd | ||||||
| PTR | ecs-49-4-6-171.compute.hwclouds-dns.com | ||||||
| NS | dns2.51.net ⚠️ Not in zone NS records | ||||||
| A | 117.78.50.71🇨🇳 HWCSNET117.78.48.0/21 Huawei Technologies Co., Ltd | ||||||
| PTR | ecs-117-78-50-71.compute.hwclouds-dns.com | ||||||
| NS | ns1.51.net ⚠️ Not in parent delegation | ||||||
| A | 49.4.6.171🇨🇳 HWCSNET49.4.0.0/20 Huawei Technologies Co., Ltd | ||||||
| PTR | ecs-49-4-6-171.compute.hwclouds-dns.com | ||||||
| NS | ns2.51.net ⚠️ Not in parent delegation | ||||||
| A | 117.78.50.71🇨🇳 HWCSNET117.78.48.0/21 Huawei Technologies Co., Ltd | ||||||
| PTR | ecs-117-78-50-71.compute.hwclouds-dns.com | ||||||
| MX | mx.cndhe.com ⭐ | ||||||
| MX | p3.51.net ⭐ | ||||||
| A | 118.145.1.10🇨🇳 DXTNET118.145.0.0/20 CMI (Customer Route) | ||||||
| SOA | cndhe.comroot@cndhe.com 2009-12-09 #15 | ||||||
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=1774872972 | ||||||
NS for
cndhe.com |
Same first word
cndhe.com |
Similar names
DNS History
9 records (8 active, 1 former)
●NScndhe.com2015-08-29 → 2026-03-30 · 2 obs
● 2026-03-30 12:33:36
●NSdns1.51.net2026-03-25 → 2026-03-30 · 3 obs
● 2026-03-25 04:41:22
● 2026-03-30 12:33:36
●NSdns2.51.net2026-03-25 → 2026-03-30 · 3 obs
● 2026-03-25 04:41:22
● 2026-03-30 12:33:36
●MXmx.cndhe.com2015-08-29 → 2026-03-30 · 2 obs
● 2026-03-30 12:33:36
○A221.231.138.142015-08-29 → 2017-03-13 · 4 obs
● 2017-03-13 15:53:04
○ 2026-03-25 04:41:22
○ 2026-03-30 12:33:36
●A221.231.138.162026-03-25 → 2026-03-30 · 3 obs
● 2026-03-25 04:41:22
● 2026-03-30 12:33:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| cndhe.com | dns1.51.net, dns2.51.net | - |
✅ Authoritative Response
Server:49.4.6.171
NS records: dns1.51.net, dns2.51.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cndhe.com (unsigned zone)
⏱️ Timing
Total: 4161ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 221.231.138.16 |
| NS | 2 | ns2.51.net, ns1.51.net |
| MX | 2 | mx.cndhe.com (pri: 10), p3.51.net (pri: 10) |
| SOA | 1 | cndhe.com root.cndhe.com |
Analysis
Name Server Role
cndhe.com acts as the name server for cndhe.com.
ns1.51.net, ns2.51.net and dns1.51.net commonly serve as nameservers together with cndhe.com.
IP Addresses
cndhe.com points to a single IP number: 221.231.138.16.
Other host names, for instance lguasha.com, zp111.com and resolve.a14.80data.net share IP numbers with cndhe.com.
Name Servers
cndhe.com is delegated to five name servers: cndhe.com, dns1.51.net, dns2.51.net, ns1.51.net and ns2.51.net.
cndhe.com shares name servers with other domains at least partially, for instance jxtcms.net, dorland-ex.com, lingzhicn.net, jhgyyq.com and hg8199.com.
Host names with a single IP:
cndhe.com points to: 221.231.138.16
dns1.51.net points to: 49.4.6.171
dns2.51.net points to: 117.78.50.71
ns1.51.net points to: 49.4.6.171
ns2.51.net points to: 117.78.50.71
Host names that point to 49.4.6.171: dns1.51.net and ns1.51.net
Host names that point to 117.78.50.71: dns2.51.net and ns2.51.net
Mail Servers
cndhe.com is handled by two mail servers: mx.cndhe.com and p3.51.net.
cndhe.com shares some mail servers with other domains, including juhe21.com, lan-wisdom.cn and baishengsw.com.
Host names with one IP number: p3.51.net points to 118.145.1.10.