sibc.cn - robtex.com
sibc.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | 17ex1.dns.com ⚠️ Not in zone NS records | ||||||
| A | 218.98.111.191 | ||||||
| NS | 17ex2.dns.com ⚠️ Not in zone NS records | ||||||
| A | 183.253.57.205CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.35DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
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=2035034946 | ||||||
Same first word
Similar names
DNS History
12 records (2 active, 10 former)
●NS17ex1.dns.com2026-06-23 → 2026-07-13 · 3 obs
● 2026-06-23 09:07:22
● 2026-07-13 07:08:08
●NS17ex2.dns.com2026-06-23 → 2026-07-13 · 3 obs
● 2026-06-23 09:07:22
● 2026-07-13 07:08:08
○NSns1.17ex.com2026-06-23 → 2026-06-23 · 4 obs
● 2026-06-23 09:07:22
○ 2026-07-08 15:06:44
○ 2026-07-13 07:08:08
○NSns1.bodis.com2015-06-29 → 2021-05-09 · 4 obs
● 2021-05-09 02:58:44
○ 2026-06-23 09:07:22
○ 2026-07-13 07:08:08
○NSns2.17ex.com2026-06-23 → 2026-06-23 · 4 obs
● 2026-06-23 09:07:22
○ 2026-07-08 15:06:44
○ 2026-07-13 07:08:08
○NSns2.bodis.com2015-06-29 → 2021-05-09 · 4 obs
● 2021-05-09 02:58:44
○ 2026-06-23 09:07:22
○ 2026-07-13 07:08:08
○MXmx76.m2bp.com2017-07-07 → 2021-05-09 · 4 obs
● 2021-05-09 02:58:44
○ 2026-06-23 09:07:22
○ 2026-07-13 07:08:08
○MXmx76.mb1p.com2017-07-07 → 2021-05-09 · 4 obs
● 2021-05-09 02:58:44
○ 2026-06-23 09:07:22
○ 2026-07-13 07:08:08
○A199.59.242.1502017-07-07 → 2017-07-07 · 4 obs
● 2017-07-07 21:50:02
○ 2021-05-09 02:58:44
○ 2026-07-13 07:08:08
○A199.59.242.1532021-05-09 → 2021-05-09 · 4 obs
● 2021-05-09 02:58:44
○ 2026-06-23 09:07:22
○ 2026-07-13 07:08:08
○A199.59.243.1202015-06-29 → 2016-12-01 · 4 obs
● 2016-12-01 16:49:18
○ 2017-07-07 21:50:02
○ 2026-07-13 07:08:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | d.dns.cn, e.dns.cn, a.dns.cn, c.dns.cn... | - |
| sibc.cn | 17ex1.dns.com, 17ex2.dns.com | - |
✅ Authoritative Response
Server:218.98.111.191
NS records: 17ex1.dns.com, 17ex2.dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sibc.cn (unsigned zone)
⏱️ Timing
Total: 2174ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.17ex.com, ns2.17ex.com |
| CNAME | 1 | show.17ex.com |
| SOA | 1 | ns1.17ex.com admin.17ex.com |
Analysis
Name Servers
sibc.cn has two authoritative name servers — 17ex1.dns.com and 17ex2.dns.com.
sibc.cn has the same name server delegation as a number of other domains, such as forts.cn, twbs.cn, liexiu.cn and two more.
At least some of sibc.cn's name servers are shared with other domains, for example cfr.cn, omerin.cn, thr.cn and two more.
These name servers tend to be deployed in combination with the name servers ns1.17ex.com and ns2.17ex.com.
Hosts with two IP numbers each:
17ex2.dns.com resolves to 183.253.57.205 and 211.99.99.35.
Hosts that resolve to one IP address:
17ex1.dns.com resolves to 218.98.111.191.