szzy.edu.cn - robtex.com
szzy.edu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 211.141.190.234🇨🇳 CHINAMOBILE-CN211.141.190.0/24 CMI (Customer Route) | ||||||
| NS | ns1.szzy.edu.cn ⭐ | ||||||
| A | 2001:da8:d800:300::14🇨🇳 CNGI-HEF-IX-AS-AP2001:da8:d800::/48 | ||||||
| A | 210.45.224.14🇨🇳 ERX-CERNET-BKB210.45.0.0/16 | ||||||
| NS | ns2.szzy.edu.cn | ||||||
| A | 2001:da8:d800:300::15🇨🇳 CNGI-HEF-IX-AS-AP2001:da8:d800::/48 | ||||||
| A | 210.45.224.15🇨🇳 ERX-CERNET-BKB210.45.0.0/16 | ||||||
| MX | mx.ym.163.com ⭐ | ||||||
| A | 111.124.200.35🇨🇳 AS139203111.124.192.0/19 GuiZhou telecom GuiAn IDC | ||||||
| TXT | v=spf1 include:spf.163.com ~all | ||||||
| SOA | ns1.szzy.edu.cnadmin@admin.com serial=1784515376 | ||||||
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 2026-08-13 #43 | ||||||
Subdomains
Same first word
Similar names
syzz.de |
zysz.tv |
yzsz.net |
zyzs.cn.com |
zzys.net |
yzzs.cn |
zzsy.com.cn |
zsyz.net |
zzsy.com |
yzzs.ltd |
yzzs.com |
zysz.pro |
szyz.org |
zzys.com |
szyz.net |
yzsz.xyz |
zsyz.com |
zyzs.net |
yzzs.net |
zysz.com.cn |
zsyz.org |
yzzs.cc |
zzsy.top |
DNS History
4 records (4 active, 0 former)
●NSns1.szzy.edu.cn2026-04-06 → 2026-08-13 · 2 obs
● 2026-08-13 16:13:12
●NSns2.szzy.edu.cn2026-04-06 → 2026-08-13 · 2 obs
● 2026-08-13 16:13:12
●MXmx.ym.163.com2026-04-06 → 2026-08-13 · 2 obs
● 2026-08-13 16:13:12
●A211.141.190.2342026-04-06 → 2026-08-13 · 2 obs
● 2026-08-13 16:13:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, e.dns.cn, d.dns.cn, c.dns.cn... | - |
| edu.cn | dns.edu.cn, ns2.cernet.net, ns4.cernet.net, ns5.cernet.net... | 6 records |
| szzy.edu.cn | ns2.szzy.edu.cn, ns1.szzy.edu.cn | 4 records |
✅ Authoritative Response
Server:210.45.224.15
NS records: ns2.szzy.edu.cn, ns1.szzy.edu.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for szzy.edu.cn (unsigned zone)
⏱️ Timing
Total: 2641ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 211.141.190.234 |
| NS | 2 | ns1.szzy.edu.cn, ns2.szzy.edu.cn |
| MX | 1 | mx.ym.163.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.163.com ~all |
| SOA | 1 | ns1.szzy.edu.cn admin.admin.com |
📌 Glue Records Collected
Total: 10
In-bailiwick: 10 (dns.edu.cn, dns.edu.cn, dns2.edu.cn...)
Analysis
Hierarchy
ns2.szzy.edu.cn and ns1.szzy.edu.cn each fall under szzy.edu.cn as their parent domain.
IP Addresses
szzy.edu.cn resolves to just one IP address, 211.141.190.234.
Name Servers
Two name servers handle the delegation for szzy.edu.cn: ns1.szzy.edu.cn and ns2.szzy.edu.cn.
ns1.szzy.edu.cn and ns2.szzy.edu.cn both carry two IP addresses. The A records for ns1.szzy.edu.cn are 210.45.224.14 and 2001:da8:d800:300::14; the A records for ns2.szzy.edu.cn are 210.45.224.15 and 2001:da8:d800:300::15.
Mail Servers
The sole mail server for szzy.edu.cn is mx.ym.163.com.
Among the domains sharing a mail server setup with szzy.edu.cn are xskf.net, agitc.cn, dhjrcn.com and two others.
There is at least a partial MX overlap between szzy.edu.cn and other domains, including here.cn, duyftech.com, aluminiummanufacturers.com and two others.
The mail servers mxn.mxhichina.com, mxbiz1.qq.com and mxw.mxhichina.com frequently co-occur with these mail servers.
mx.ym.163.com carries a single IP number, which is 111.124.200.35.