cqca.edu.cn - robtex.com
cqca.edu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:250:2419::21:b8d🇨🇳 CNGI-CHQ-IX-AS-AP2001:250:2419::/48 | ||||||
| A | 42.247.9.205🇨🇳 ERX-CERNET-BKB42.247.9.0/24 | ||||||
| NS | ns1.service.edu.cn ⭐ | ||||||
| A | 2001:da8:257:2222::8888🇨🇳 ERX-CERNET-BKB2001:da8:257::/48 | ||||||
| A | 202.112.5.49🇨🇳 ERX-CERNET-BKB202.112.0.0/16 | ||||||
| PTR | ns1.service.edu.cn | ||||||
| NS | ns2.service.edu.cn | ||||||
| A | 2001:da8:257:1111::8888🇨🇳 ERX-CERNET-BKB2001:da8:257::/48 | ||||||
| A | 202.112.4.49🇨🇳 CNGI-BJ-IX2-AS-AP202.112.4.0/24 CMI (Customer Route) | ||||||
| PTR | ns2.service.edu.cn | ||||||
| MX | mxbiz1.qq.com ⭐ | ||||||
| MX | mxbiz2.qq.com(10) | ||||||
| TXT | v=spf1 include:spf.mail.qq.com ~all | ||||||
| SOA | ns1.service.edu.cnwukouniu@qq.com serial=2798533878 | ||||||
edu.cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns2.edu.cn ⭐ | ||||||
| NS | dns.edu.cn | ||||||
| NS | dns3.edu.cn | ||||||
| NS | ns2.cernet.net | ||||||
| NS | ns4.cernet.net | ||||||
| NS | ns5.cernet.net | ||||||
| SOA | dns.edu.cnhostmaster@net.edu.cn 2026-05-12 #17 | ||||||
Same first word
Similar names
DNS History
7 records (6 active, 1 former)
●NSns1.service.edu.cn2018-05-13 → 2026-05-13 · 2 obs
● 2026-05-13 01:45:16
●NSns2.service.edu.cn2018-05-13 → 2026-05-13 · 2 obs
● 2026-05-13 01:45:16
●MXmxbiz1.qq.com2026-04-08 → 2026-05-13 · 4 obs
○ 2026-04-10 23:47:18
● 2026-04-16 07:56:24
● 2026-05-13 01:45:16
●MXmxbiz2.qq.com2026-04-08 → 2026-05-13 · 4 obs
○ 2026-04-10 23:47:18
● 2026-04-16 07:56:24
● 2026-05-13 01:45:16
○A119.10.53.1432018-05-13 → 2018-05-13 · 3 obs
○ 2026-04-08 20:18:10
○ 2026-05-13 01:45:16
●A2001:250:2419::21:b8d2026-04-08 → 2026-05-13 · 6 obs
● 2026-04-08 20:18:10
○ 2026-04-10 23:47:18
○ 2026-04-16 07:56:24
● 2026-04-21 18:57:14
● 2026-05-13 01:45:16
●A42.247.9.2052026-04-08 → 2026-05-13 · 6 obs
● 2026-04-08 20:18:10
○ 2026-04-10 23:47:18
○ 2026-04-16 07:56:24
● 2026-04-21 18:57:14
● 2026-05-13 01:45:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| edu.cn | dns.edu.cn, ns2.cernet.net, ns4.cernet.net, ns5.cernet.net... | 6 records |
| cqca.edu.cn | ns2.service.edu.cn, ns1.service.edu.cn | 4 records |
✅ Authoritative Response
Server:202.112.4.49
NS records: ns2.service.edu.cn, ns1.service.edu.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cqca.edu.cn (unsigned zone)
⏱️ Timing
Total: 2227ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 42.247.9.205 |
| AAAA | 1 | 2001:250:2419::21:b8d |
| NS | 2 | ns1.service.edu.cn, ns2.service.edu.cn |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.mail.qq.com ~all |
| SOA | 1 | ns1.service.edu.cn wukouniu.qq.com |
📌 Glue Records Collected
Total: 10
In-bailiwick: 6 (dns.edu.cn, dns.edu.cn, dns2.edu.cn...)
Out-of-bailiwick: 4 (ns2.service.edu.cn, ns1.service.edu.cn, ns2.service.edu.cn...)
Analysis
IP Addresses
cqca.edu.cn points to two IPs: 2001:250:2419::21:b8d and 42.247.9.205.
Name Servers
cqca.edu.cn's delegation uses two name servers, ns1.service.edu.cn and ns2.service.edu.cn.
cqca.edu.cn shares the same name server setup as other domains, for example tmi.edu.cn, hrbzy.edu.cn, czptc.edu.cn, cyprxy.edu.cn and hljkltc.edu.cn.
cqca.edu.cn at least partially shares name servers with other domains, for example nimt.edu.cn, shcc.edu.cn and hnjd.edu.cn.
Host names with two IPs:
ns1.service.edu.cn points to: 2001:da8:257:2222::8888 and 202.112.5.49
ns2.service.edu.cn points to: 2001:da8:257:1111::8888 and 202.112.4.49
Mail Servers
cqca.edu.cn is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.
cqca.edu.cn shares its mail server setup with other domains, including mejorsub.com, anopc.com, zeelcn.com, hmjx.cn and jbzhaopin.com.
cqca.edu.cn shares at least partially some mail servers with other domains, for instance wjhr.net, petmi.com and 51jujibao.com.