school-link.cn - robtex.com
school-link.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.63.169.75🇺🇸 AS5460038.63.128.0/18 | ||||||
| NS | dm1.longmingdns.com ⭐ | ||||||
| A | 218.98.111.163 | ||||||
| NS | dm2.longmingdns.com | ||||||
| A | 183.253.57.197 | ||||||
| A | 211.99.99.56 | ||||||
| SOA | dm1.longmingdns.comdnsadmin@longmingdns.com serial=1776673433 | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2035014700 | ||||||
Same first word
school-link.cn |
DNS History
4 records (3 active, 1 former)
●NSdm1.longmingdns.com2026-04-28 → 2026-07-07 · 2 obs
● 2026-07-07 18:57:00
●NSdm2.longmingdns.com2026-04-28 → 2026-07-07 · 2 obs
● 2026-07-07 18:57:00
○A38.63.162.1392026-04-28 → 2026-07-07 · 2 obs
○ 2026-07-07 18:57:00
●A38.63.169.752026-04-28 → 2026-07-07 · 2 obs
● 2026-07-07 18:57:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| school-link.cn | dm1.longmingdns.com, dm2.longmingdns.com | - |
✅ Authoritative Response
Server:218.98.111.163
NS records: dm1.longmingdns.com, dm2.longmingdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for school-link.cn (unsigned zone)
⏱️ Timing
Total: 3581ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.63.169.75 |
| NS | 2 | dm1.longmingdns.com, dm2.longmingdns.com |
| SOA | 1 | dm1.longmingdns.com dnsadmin.longmingdns |
Analysis
IP Addresses
school-link.cn resolves to one IP address: 38.63.169.75.
Host names such as 48qnbw.cn and 69349.com.cn share IP numbers with school-link.cn.
Name Servers
school-link.cn uses two name servers for its delegation: dm1.longmingdns.com and dm2.longmingdns.com.
school-link.cn shares the same name server setup with other domains, for instance ohtabnx.cn, rchm.cn, reite.cn and two other.
Hostnames that resolve to two IP addresses:
dm2.longmingdns.com directs traffic to 183.253.57.197 and 211.99.99.56.
Hosts with just one IP address:
dm1.longmingdns.com has the IP address 218.98.111.163.