hca.edu.cn - robtex.com
hca.edu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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 | hzmx01.mxmail.netease.com ⭐ | ||||||
| A | 47.251.71.119🇺🇸 Alibaba-Cloud47.251.0.0/17 Proxy-registered route object | ||||||
| A | 47.251.84.126🇺🇸 Alibaba-Cloud47.251.0.0/17 Proxy-registered route object | ||||||
| MX | hzmx02.mxmail.netease.com(10) | ||||||
| A | 47.251.71.119🇺🇸 Alibaba-Cloud47.251.0.0/17 Proxy-registered route object | ||||||
| A | 47.251.84.126🇺🇸 Alibaba-Cloud47.251.0.0/17 Proxy-registered route object | ||||||
| TXT | v=spf1 include:spf.163.com -all | ||||||
| SOA | ns1.service.edu.cnserv@cernet.com serial=2795835563 | ||||||
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
4 records (4 active, 0 former)
●NSns1.service.edu.cn2026-05-06 → 2026-05-13 · 2 obs
● 2026-05-13 08:03:42
●NSns2.service.edu.cn2026-05-06 → 2026-05-13 · 2 obs
● 2026-05-13 08:03:42
●MXhzmx01.mxmail.netease.com2026-05-06 → 2026-05-13 · 2 obs
● 2026-05-13 08:03:42
●MXhzmx02.mxmail.netease.com2026-05-06 → 2026-05-13 · 2 obs
● 2026-05-13 08:03:42
🔍 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 |
| hca.edu.cn | ns2.service.edu.cn, ns1.service.edu.cn | 4 records |
✅ Authoritative Response
Server:202.112.5.49
NS records: ns2.service.edu.cn, ns1.service.edu.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for hca.edu.cn (unsigned zone)
⏱️ Timing
Total: 5020ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.service.edu.cn, ns2.service.edu.cn |
| MX | 2 | hzmx01.mxmail.netease.com (pri: 5), hzmx02.mxmail.netease.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.163.com -all |
| SOA | 1 | ns1.service.edu.cn serv.cernet.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
Name Servers
Two name servers ns1.service.edu.cn and ns2.service.edu.cn are delegated to hca.edu.cn.
hca.edu.cn uses the same name server configuration as other domains, such as wku.edu.cn, gdfs.edu.cn, gxaqzy.edu.cn, gdafc.edu.cn and bvclss.edu.cn.
hca.edu.cn shares name servers with other domains at least partially, for instance syuct.edu.cn and jlenu.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
Two mail servers handle hca.edu.cn: hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com.
hca.edu.cn shares the same mail server setup as other domains, including bbt3.com, aptbeauty.com, gtmsmart.com, aotingbot.com and forone.com.cn.
hca.edu.cn shares mail servers with other domains, at least partially, for instance 51ykb.com, szmoeker.com, wytxcn.com and petinluxury.com.
Host names with two IP numbers:
hzmx01.mxmail.netease.com points to 47.251.71.119 and 47.251.84.126
hzmx02.mxmail.netease.com points to 47.251.71.119 and 47.251.84.126
Hosts that point to 47.251.71.119: hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com
Hosts that point to 47.251.84.126: hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com