tpdc.ac.cn - robtex.com
tpdc.ac.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.sfn.cn ⭐ | ||||||
| A | 111.63.77.29🇨🇳 CMNET-V4HEBEI-AS-AP111.63.64.0/20 CMI (Customer Route) | ||||||
| NS | ns2.sfn.cn | ||||||
| A | 101.37.119.99🇨🇳 Alibaba-Cloud101.37.0.0/17 | ||||||
| A | 111.63.77.30🇨🇳 CMNET-V4HEBEI-AS-AP111.63.64.0/20 CMI (Customer Route) | ||||||
| MX | mxbiz1.qq.com ⭐ | ||||||
| MX | mxbiz2.qq.com(10) | ||||||
| TXT | v=spf1include:qcloudmail.com-all | ||||||
| SOA | ns1.sfn.cnroot@ns1.sfn.cn 2026-06-06 #8 | ||||||
ac.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=2027271612 | ||||||
Same first word
tpdc.co.za |
tpdc.co.tz |
tpdc.org.tw |
tpdc.net |
tpdc.nl |
tpdc.info |
tpdc.de |
tpdc.ge |
tpdc.org |
tpdc.biz |
tpdc.ac.cn |
tpdc.com |
tpdc.gov.ge |
tpdc.cn |
Similar names
DNS History
4 records (4 active, 0 former)
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| tpdc.ac.cn | ns1.sfn.cn, ns2.sfn.cn | - |
✅ Authoritative Response
Server:111.63.77.29
NS records: ns1.sfn.cn, ns2.sfn.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tpdc.ac.cn (unsigned zone)
⏱️ Timing
Total: 2436ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.sfn.cn, ns2.sfn.cn |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| TXT | 1 | v=spf1include:qcloudmail.com-all |
| SOA | 1 | ns1.sfn.cn root.ns1.sfn.cn |
Analysis
Name Servers
Two name servers handle the delegation for tpdc.ac.cn: ns1.sfn.cn and ns2.sfn.cn.
tpdc.ac.cn has the same name server delegation as a number of other domains, such as liangyu.com.cn, cyea.org.cn, bjcx.com.cn and two more.
The name servers for tpdc.ac.cn overlap at least in part with those of other domains, including cta.net.cn and bjlot.com.cn.
Hosts with two IP numbers each:
ns2.sfn.cn resolves to two addresses: 101.37.119.99 and 111.63.77.30.
Hosts that resolve to one IP address:
The hostname ns1.sfn.cn resolves to 111.63.77.29.
Mail Servers
The MX records for tpdc.ac.cn point to two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.
tpdc.ac.cn has the same mail server arrangement as a number of other domains, for example easytier.cn, blcz.cn, kmdbioscience.com and two more.
tpdc.ac.cn uses mail servers that are also used by other domains, including 353go.com, rforigin.epicabyss.com and longriver3h.com.