proxy.cupl.edu.cn - robtex.com
proxy.cupl.edu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:da8:252:2304:5000::1🇨🇳 ERX-CERNET-BKB2001:da8:252::/48 | ||||||
| A | 182.48.103.182🇨🇳 CHINA169-BJ182.48.96.0/20 CMI (Customer Route) | ||||||
cupl.edu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns.cupl.edu.cn ⭐ | ||||||
| NS | zhengfa2.cupl.edu.cn | ||||||
| NS | zhengfa4.cupl.edu.cn | ||||||
| MX | mx-cupl-edu-cn.icoremail.net ⭐ | ||||||
| MX | mail.cupl.edu.cn(10) | ||||||
| TXT | v=spf1 ip4:182.48.103.167 ip4:182.48.103.170 include:spf.icoremail.net -all | ||||||
| SOA | ns.cupl.edu.cnadmin@example.com serial=2100001612 | ||||||
rank #521 in the tld
WOT: SAFE (60/100)
📈 Tranco rank: #81,928
Same first word
Similar names
DNS History
2 records (2 active, 0 former)
●A182.48.103.1822026-03-15 → 2026-04-15 · 2 obs
● 2026-03-15 09:33:40
● 2026-04-15 02:00:58
● 2026-04-15 02:00:58
●A2001:da8:252:2304:5000::12026-03-15 → 2026-04-15 · 2 obs
● 2026-03-15 09:33:40
● 2026-04-15 02:00:58
● 2026-04-15 02:00:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, a.dns.cn, e.dns.cn, c.dns.cn... | - |
| edu.cn | dns.edu.cn, ns2.cernet.net, ns4.cernet.net, ns5.cernet.net... | 6 records |
| cupl.edu.cn | zhengfa2.cupl.edu.cn, zhengfa4.cupl.edu.cn | 4 records |
✅ Authoritative Response
Server:202.205.64.9
NS records: zhengfa2.cupl.edu.cn, zhengfa4.cupl.edu.cn
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at edu.cn: Error: DNS query timeout: 202.38.109.35 for DNSKEY edu.cn
⏱️ Timing
Total: 3727ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 182.48.103.182 |
| AAAA | 1 | 2001:da8:252:2304:5000::1 |
📌 Glue Records Collected
Total: 10
In-bailiwick: 10 (dns.edu.cn, dns.edu.cn, dns2.edu.cn...)
Analysis
IP Addresses
proxy.cupl.edu.cn resolves to two IP numbers: 2001:da8:252:2304:5000::1 and 182.48.103.182.
Other host names share IP numbers with proxy.cupl.edu.cn; for instance cupl148.cn.