cenertech.com.cn - robtex.com
cenertech.com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.zdnscloud.info ⭐ | ||||||
| A | 2408:8719:2500:0:b::1🇨🇳 CHINA169-Backbone2408:8719::/32 China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street | ||||||
| A | 14.29.124.15🇨🇳 CHINANET-BACKBONE14.16.0.0/12 China Telecom Global Limited | ||||||
| A | 14.116.160.20🇨🇳 CHINANET-BACKBONE14.112.0.0/12 China Telecom Network | ||||||
| A | 14.116.247.213🇨🇳 CHINANET-BACKBONE14.112.0.0/12 China Telecom Network | ||||||
| NS | cns1.zdnscloud.net | ||||||
| A | 2408:8719:2500:0:a::1🇨🇳 CHINA169-Backbone2408:8719::/32 China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street | ||||||
| A | 42.62.2.24🇨🇳 CHINA-142.62.0.0/21 China Telecom Beijing Co. Ltd. | ||||||
| A | 42.62.2.29🇨🇳 CHINA-142.62.0.0/21 China Telecom Beijing Co. Ltd. | ||||||
| NS | ins1.zdnscloud.com | ||||||
| A | 2401:8d00:f::1🇨🇳 ZDNS2401:8d00:f::/48 Internet Domain Name System Beijing Engineering Resrarch Center Ltd. | ||||||
| A | 27.221.63.3🇨🇳 CHINA169-Backbone27.192.0.0/11 China Unicom Shandong Province Network | ||||||
| A | 119.167.244.44🇨🇳 CHINA169-Backbone119.164.0.0/14 CNC Group CHINA169 Shandong Province Network | ||||||
| NS | vns1.zdnscloud.biz | ||||||
| A | 2401:8d00:9::1🇨🇳 ZDNS2401:8d00:9::/48 Internet Domain Name System Beijing Engineering Resrarch Center Ltd. | ||||||
| PTR | vns1.zdnscloud.biz | ||||||
| A | 203.99.22.3🇨🇳 ZDNS203.99.22.0/24 Internet Domain Name System Beijing Engineering Resrarch Center Ltd. | ||||||
| PTR | vns1.zdnscloud.biz | ||||||
| A | 203.99.23.3🇨🇳 ZDNS203.99.23.0/24 Internet Domain Name System Beijing Engineering Resrarch Center Ltd. | ||||||
| PTR | vns1.zdnscloud.biz | ||||||
| MX | mail.cnooc.com.cn ⭐ | ||||||
| A | 202.108.65.13🇨🇳 CHINA169-BJ202.108.64.0/18 CMI (Customer Route) | ||||||
| MX | mailout.cnooc.com.cn(10) | ||||||
| A | 36.112.54.13🇨🇳 CHINANET-BJ-METRO36.112.0.0/16 regist for BJCT | ||||||
| PTR | mailout.cnooc.com.cn | ||||||
| A | 202.108.65.7🇨🇳 CHINA169-BJ202.108.64.0/18 CMI (Customer Route) | ||||||
| A | 202.108.65.165🇨🇳 CHINA169-BJ202.108.64.0/18 CMI (Customer Route) | ||||||
| TXT | v=spf1 include:cnooc.com.cn -all | ||||||
| SOA | dns1.zdnscloud.infomail@knet.cn serial=23 | ||||||
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=2030685828 | ||||||
Same first word
cenertech.com |
cenertech.com.cn |
Similar names
DNS History
6 records (6 active, 0 former)
●NScns1.zdnscloud.net2026-05-28 → 2026-07-14 · 2 obs
● 2026-07-14 22:59:22
●NSdns1.zdnscloud.info2026-05-28 → 2026-07-14 · 2 obs
● 2026-07-14 22:59:22
●NSins1.zdnscloud.com2026-05-28 → 2026-07-14 · 2 obs
● 2026-07-14 22:59:22
●NSvns1.zdnscloud.biz2026-05-28 → 2026-07-14 · 2 obs
● 2026-07-14 22:59:22
●MXmail.cnooc.com.cn2026-05-28 → 2026-07-14 · 2 obs
● 2026-07-14 22:59:22
●MXmailout.cnooc.com.cn2026-05-28 → 2026-07-14 · 2 obs
● 2026-07-14 22:59:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| cenertech.com.cn | cns1.zdnscloud.net, dns1.zdnscloud.info, ins1.zdnscloud.com, vns1.zdnscloud.biz | - |
✅ Authoritative Response
Server:203.99.22.3
NS records: cns1.zdnscloud.net, dns1.zdnscloud.info, ins1.zdnscloud.com, vns1.zdnscloud.biz
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cenertech.com.cn: Error: DNS query timeout: 203.119.29.1 for DS cenertech.com.cn
⏱️ Timing
Total: 3683ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | vns1.zdnscloud.biz, ins1.zdnscloud.com... |
| MX | 2 | mail.cnooc.com.cn (pri: 1), mailout.cnooc.com.cn (pri: 10) |
| TXT | 1 | v=spf1 include:cnooc.com.cn -all |
| SOA | 1 | dns1.zdnscloud.info mail.knet.cn |
Analysis
Name Servers
cenertech.com.cn has four authoritative name servers: vns1.zdnscloud.biz, ins1.zdnscloud.com, dns1.zdnscloud.info and cns1.zdnscloud.net.
The name servers of cenertech.com.cn overlap at least partially with those of other domains — among them anshun.gov.cn, nic.citic, gapp.gov.cn and two more.
These name servers commonly appear in combination with the name servers dns1.czbank.com.
Host names resolving to four IP addresses:
dns1.zdnscloud.info resolves to 14.29.124.15, 14.116.160.20, 14.116.247.213 and 2408:8719:2500:0:b::1.
Host names with three IP numbers:
vns1.zdnscloud.biz resolves to three addresses: 203.99.22.3, 203.99.23.3 and 2401:8d00:9::1.
ins1.zdnscloud.com resolves to three addresses: 27.221.63.3, 119.167.244.44 and 2401:8d00:f::1.
cns1.zdnscloud.net resolves to three addresses: 42.62.2.24, 42.62.2.29 and 2408:8719:2500:0:a::1.
Mail Servers
cenertech.com.cn has two mail servers: mail.cnooc.com.cn and mailout.cnooc.com.cn.
cenertech.com.cn's MX records match those of several other domains — for example cbcl.com.cn, copcl.com.cn, cnooc.com.cn and cncccitc.com.cn.
cenertech.com.cn has mail servers in common with other domains — pcec.com.cn being one example.
Host names with three IP numbers:
mailout.cnooc.com.cn resolves to three addresses: 36.112.54.13, 202.108.65.7 and 202.108.65.165.
Host names pointing to a single IP address:
mail.cnooc.com.cn points to the IP address 202.108.65.13.