cloud.edu.cn - robtex.com
cloud.edu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:da8:243:61:202:205:11:21🇨🇳 ERX-CERNET-BKB2001:da8:243::/48 | ||||||
| A | 202.205.11.21🇨🇳 ERX-CERNET-BKB202.200.0.0/13 | ||||||
| NS | cloud.edu.cn ⭐ | ||||||
| A | 2001:da8:243:61:202:205:11:21🇨🇳 ERX-CERNET-BKB2001:da8:243::/48 | ||||||
| A | 202.205.11.21🇨🇳 ERX-CERNET-BKB202.200.0.0/13 | ||||||
| NS | ns.cloud.edu.cn | ||||||
| A | 101.4.63.100🇨🇳 ERX-CERNET-BKB101.4.63.0/24 | ||||||
| MX | mail.cloud.edu.cn ⭐ | ||||||
| SOA | cloud.edu.cnroot@cloud.edu.cn serial=43 | ||||||
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 2026-04-29 #30 | ||||||
NS for
cloud.edu.cn |
Subdomains
ns.cloud.edu.cn |
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●NScloud.edu.cn2015-07-10 → 2026-05-04 · 2 obs
● 2026-05-04 02:47:10
●NSns.cloud.edu.cn2015-07-10 → 2026-05-04 · 2 obs
● 2026-05-04 02:47:10
●MXmail.cloud.edu.cn2015-07-10 → 2026-05-04 · 2 obs
● 2026-05-04 02:47:10
○A101.4.63.1002015-07-10 → 2017-03-21 · 4 obs
● 2017-03-21 19:34:12
○ 2026-05-02 21:26:34
○ 2026-05-04 02:47:10
○A2001:da8:20d:31::1002015-07-10 → 2017-03-21 · 4 obs
● 2017-03-21 19:34:12
○ 2026-05-02 21:26:34
○ 2026-05-04 02:47:10
●A2001:da8:243:61:202:205:11:212026-05-02 → 2026-05-04 · 3 obs
● 2026-05-02 21:26:34
● 2026-05-04 02:47:10
●A202.205.11.212026-05-02 → 2026-05-04 · 3 obs
● 2026-05-02 21:26:34
● 2026-05-04 02:47:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| edu.cn | dns.edu.cn, dns2.edu.cn, dns3.edu.cn | - |
| cloud.edu.cn | ns.cloud.edu.cn | 1 record |
✅ Authoritative Response
Server:101.4.63.100
NS records: ns.cloud.edu.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for edu.cn (unsigned zone)
⏱️ Timing
Total: 905ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.205.11.21 |
| AAAA | 1 | 2001:da8:243:61:202:205:11:21 |
| NS | 1 | ns.cloud.edu.cn |
| MX | 1 | mail.cloud.edu.cn (pri: 10) |
| SOA | 1 | cloud.edu.cn root.cloud.edu.cn |
📌 Glue Records Collected
Total: 1
In-bailiwick: 1 (ns.cloud.edu.cn)
Analysis
Hierarchy
cloud.edu.cn is the parent of ns.cloud.edu.cn.
Name Server Role
cloud.edu.cn serves as a name server for cloud.edu.cn.
ns.cloud.edu.cn commonly serves as a name server alongside cloud.edu.cn.
IP Addresses
cloud.edu.cn resolves to two IPs: 2001:da8:243:61:202:205:11:21 and 202.205.11.21.
Name Servers
cloud.edu.cn is delegated to two name servers: cloud.edu.cn and ns.cloud.edu.cn.
cloud.edu.cn partially shares name servers with other domains, for instance cernsafe.edu.cn, cerivi.net and cerivi.edu.cn.
These name servers are commonly used with the name servers ns.cerivi.edu.cn.
Host names with two IP numbers: cloud.edu.cn points to 2001:da8:243:61:202:205:11:21 and 202.205.11.21.
Host names with one IP number: ns.cloud.edu.cn points to 101.4.63.100.
Mail Servers
cloud.edu.cn is handled by a single mail server, mail.cloud.edu.cn.