52tool.cn - robtex.com
52tool.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 127.0.0.1 | ||||||
| NS | ns1.exp.4cun.com ⚠️ Not in zone NS records | ||||||
| NS | ns2.exp.4cun.com ⚠️ Not in zone NS records | ||||||
| MX | mail.happyisp.com ⭐ | ||||||
| TXT | v=spf1 ip6:fd0d:d741:e183::/48 -all | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2034546407 | ||||||
DNS History
4 records (4 active, 0 former)
●NSns1.exp.4cun.com2026-03-16 → 2026-03-16 · 2 obs
● 2026-03-16 20:57:56
● 2026-03-16 20:57:58
● 2026-03-16 20:57:58
●NSns2.exp.4cun.com2026-03-16 → 2026-03-16 · 2 obs
● 2026-03-16 20:57:56
● 2026-03-16 20:57:58
● 2026-03-16 20:57:58
●MXmail.happyisp.com2026-03-16 → 2026-03-16 · 2 obs
● 2026-03-16 20:57:56
● 2026-03-16 20:57:58
● 2026-03-16 20:57:58
●A127.0.0.12026-03-16 → 2026-03-16 · 2 obs
● 2026-03-16 20:57:56
● 2026-03-16 20:57:58
● 2026-03-16 20:57:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| 52tool.cn | ns1.exp.4cun.com, ns2.exp.4cun.com | - |
✅ Authoritative Response
Server: 60.190.243.160
NS records: ns1.exp.4cun.com, ns2.exp.4cun.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 52tool.cn (unsigned zone)
⏱️ Timing
Total: 3143ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 127.0.0.1 |
| MX | 1 | mail.happyisp.com (pri: 1) |
| TXT | 1 | v=spf1 ip6:fd0d:d741:e183::/48 -all |
Analysis
IP Addresses
52tool.cn points to a single IP address: 127.0.0.1.
Name Servers
Two name servers ns1.exp.4cun.com and ns2.exp.4cun.com handle the delegation for 52tool.cn.
Mail Servers
The mail.happyisp.com mail server handles 52tool.cn.