crtc.com.cn - robtex.com
crtc.com.cn
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=2030545428 | ||||||
Subdomains
mail.crtc.com.cn |
Same first word
crtc.fr |
crtc.gc.ca |
crtc.co.th |
crtc.ca |
crtc.org |
crtc.net |
crtc.com.tw |
crtc.be |
crtc.cn |
crtc.cc |
crtc.com.au |
crtc.ie |
crtc.com |
crtc.tv |
crtc.de |
crtc.in |
Similar names
DNS History
8 records (3 active, 5 former)
●NSns11.xincache.com2026-05-01 → 2026-05-01 · 2 obs
● 2026-05-01 21:43:34
○NSns17.xincache.com2015-08-23 → 2016-06-10 · 4 obs
● 2016-06-10 06:23:24
○ 2017-08-16 01:57:48
○ 2026-05-01 21:43:34
○NSns18.xincache.com2015-12-10 → 2016-06-10 · 5 obs
● 2015-12-10 00:08:32
● 2016-06-10 06:23:24
○ 2017-08-16 01:57:48
○ 2026-05-01 21:43:34
●NSns19.xincache.com2017-08-16 → 2026-05-01 · 3 obs
● 2017-08-16 01:57:48
● 2026-05-01 21:43:34
●NSns20.xincache.com2017-08-16 → 2026-05-01 · 3 obs
● 2017-08-16 01:57:48
● 2026-05-01 21:43:34
○MX112.64.26.1802015-12-10 → 2016-03-20 · 4 obs
● 2016-03-20 02:21:40
○ 2016-06-10 06:23:24
○ 2026-05-01 21:43:34
○MX153.37.178.62016-06-10 → 2017-09-30 · 4 obs
● 2016-06-10 06:23:24
● 2017-09-30 04:16:00
○ 2026-05-01 21:43:34
○MXmail.crtc.com.cn2015-12-10 → 2017-09-30 · 3 obs
● 2017-09-30 04:16:00
○ 2026-05-01 21:43:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| crtc.com.cn | ns19.xincache.com, ns20.xincache.com | - |
✅ Authoritative Response
Server:129.211.176.209
NS records: ns19.xincache.com, ns20.xincache.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for crtc.com.cn (unsigned zone)
⏱️ Timing
Total: 1257ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns20.xincache.com, ns19.xincache.com |
| TXT | 3 | lc96a0r04lfi32b0cpi4o5npqm, n1qekc6v36blhujptsu3ves78c... |
| SOA | 1 | ns11.xincache.com ns12.xincache.com |
Analysis
Hierarchy
The parent of mail.crtc.com.cn is crtc.com.cn.
Name Servers
crtc.com.cn is delegated to three name servers ns11.xincache.com, ns19.xincache.com and ns20.xincache.com.
crtc.com.cn at least partially shares name servers with other domains, for instance ibp.com.cn, homsun.cn, nmdcim.com, whst.com and sinoets.com.
These name servers are commonly used with ns12.xincache.com, ns13.xincache.com, ns14.xincache.com, ce1.xincache.com, ce2.xincache.com, ns15.xincache.com, ns16.xincache.com, ns17.xincache.com and ns18.xincache.com.
Host names with eight IP numbers:
The host names ns11.xincache.com and ns19.xincache.com point to: 2402:4e00:1470:2::e, 2402:4e00:1730::e, 1.12.0.4, 36.155.149.180, 112.80.181.45, 117.89.178.173, 125.94.59.210 and 129.211.176.209.
Host names with seven IP numbers:
The host name ns20.xincache.com points to: 2402:4e00:111:fff::c, 1.12.0.1, 36.155.149.176, 112.80.181.111, 117.89.178.184, 129.211.176.239 and 163.177.5.23.
Host names that point to 2402:4e00:1470:2::e: ns11.xincache.com and ns19.xincache.com.
Host names that point to 2402:4e00:1730::e: ns11.xincache.com and ns19.xincache.com.
Host names that point to 1.12.0.4: ns11.xincache.com and ns19.xincache.com.
Host names that point to 36.155.149.180: ns11.xincache.com and ns19.xincache.com.
Host names that point to 112.80.181.45: ns11.xincache.com and ns19.xincache.com.
Host names that point to 117.89.178.173: ns11.xincache.com and ns19.xincache.com.
Host names that point to 125.94.59.210: ns11.xincache.com and ns19.xincache.com.
Host names that point to 129.211.176.209: ns11.xincache.com and ns19.xincache.com.