sumtek.cn - robtex.com
sumtek.cn
| CNAME | cnob.cn | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 119.28.134.130🇭🇰 TENCENT-NET-AP-CN119.28.134.0/23 Proxy-registered route object | ||||||
| NS | ns1.ename.net ⭐ | ||||||
| A | 2001:df2:f080:1::8🇭🇰 HKCICL-AS-AP2001:df2:f080::/48 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| A | 61.158.128.31🇨🇳 CHINA169-Backbone61.158.128.0/17 CNC Group CHINA169 Henan Province Network | ||||||
| PTR | 31.128.158.61.ha.cnc | ||||||
| A | 218.98.111.173🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | ns2.ename.net | ||||||
| A | 240e:97d:10:1402:0:1:0:1005🇨🇳 CHINANET-Guangdong-DongGuan-IDC240e:97d::/36 DongGuan IDC Network | ||||||
| A | 1.193.216.198🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network | ||||||
| A | 183.253.57.199🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.52🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | ns1.ename.netadmin@ename.net serial=1756397307 | ||||||
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=2034712178 | ||||||
Same first word
Similar names
DNS History
14 records (5 active, 9 former)
○NSdns1.iidns.com2016-04-24 → 2016-04-24 · 4 obs
● 2016-04-24 02:14:20
○ 2026-04-21 01:21:02
○ 2026-04-25 22:03:30
○NSdns2.iidns.com2016-04-24 → 2016-04-24 · 4 obs
● 2016-04-24 02:14:20
○ 2026-04-21 01:21:02
○ 2026-04-25 22:03:30
○NSdns3.iidns.com2016-04-24 → 2016-04-24 · 4 obs
● 2016-04-24 02:14:20
○ 2026-04-21 01:21:02
○ 2026-04-25 22:03:30
○NSdns4.iidns.com2016-04-24 → 2016-04-24 · 4 obs
● 2016-04-24 02:14:20
○ 2026-04-21 01:21:02
○ 2026-04-25 22:03:30
○NSdns5.iidns.com2016-04-24 → 2016-04-24 · 4 obs
● 2016-04-24 02:14:20
○ 2026-04-21 01:21:02
○ 2026-04-25 22:03:30
○NSdns6.iidns.com2015-06-02 → 2016-04-24 · 4 obs
● 2016-04-24 02:14:20
○ 2019-01-14 05:46:50
○ 2026-04-25 22:03:30
●NSns1.judns.com2026-04-21 → 2026-04-25 · 3 obs
● 2026-04-21 01:21:02
● 2026-04-25 22:03:30
●NSns1.julydns.com2026-04-21 → 2026-04-25 · 3 obs
● 2026-04-21 01:21:02
● 2026-04-25 22:03:30
○NSns1.sumtek.cn2019-01-14 → 2019-01-14 · 4 obs
● 2019-01-14 05:46:50
○ 2026-04-21 01:21:02
○ 2026-04-25 22:03:30
●NSns2.judns.com2026-04-21 → 2026-04-25 · 3 obs
● 2026-04-21 01:21:02
● 2026-04-25 22:03:30
●NSns2.julydns.com2026-04-21 → 2026-04-25 · 3 obs
● 2026-04-21 01:21:02
● 2026-04-25 22:03:30
○A202.91.242.252015-06-02 → 2016-04-24 · 4 obs
● 2016-04-24 02:14:20
○ 2019-01-14 05:46:50
○ 2026-04-25 22:03:30
○A23.19.110.1492019-01-14 → 2019-01-14 · 4 obs
● 2019-01-14 05:46:50
○ 2026-04-21 01:21:02
○ 2026-04-25 22:03:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, b.dns.cn, e.dns.cn, a.dns.cn... | - |
| sumtek.cn | ns1.judns.com, ns2.judns.com | - |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sumtek.cn (unsigned zone)
⏱️ Timing
Total: 1031ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| CNAME | 1 | cnob.cn |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
IP Addresses
sumtek.cn points to a single IP address: 119.28.134.130.
Other host names, for instance cnob.cn, share IP numbers with sumtek.cn.
Name Servers
sumtek.cn is delegated to two name servers: ns1.ename.net and ns2.ename.net.
sumtek.cn uses the same name server setup as other domains, including addeson.cn, xxjyzx.cn, piaozun.com, xwr.cn and dulei.com.
sumtek.cn at least partially shares name servers with other domains; for instance ceting.com, doyotech.com and tianyan100.com.
These name servers are commonly used alongside ns3.dns.com and ns4.dns.com.
Host names with four IP numbers:
ns2.ename.net points to 240e:97d:10:1402:0:1:0:1005, 1.193.216.198, 183.253.57.199 and 211.99.99.52.
Host names with three IP numbers:
ns1.ename.net points to 2001:df2:f080:1::8, 61.158.128.31 and 218.98.111.173.