mail.server520.com - robtex.com
mail.server520.com
server520.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 120.24.226.48🇨🇳 Alibaba-Cloud120.24.0.0/16 | ||||||
| NS | ns3.01isp.com ⭐ ⚠️ Not in zone NS records | ||||||
| NS | ns4.01isp.net ⚠️ Not in zone NS records | ||||||
| NS | ns7.01isp.com ⚠️ Not in parent delegation | ||||||
| NS | ns8.01isp.net ⚠️ Not in parent delegation | ||||||
| MX | mx2.qiye.aliyun.com(2) | ||||||
| MX | mxn.mxhichina.com(5) | ||||||
| MX | mxw.mxhichina.com(10) | ||||||
| TXT | v=spf1 include:spf.mxhichina.com -all | ||||||
| SOA | ns3.01isp.comadmin@now.cn 2026-03-19 #1 | ||||||
Previously MX for
Same first word
Similar names
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| server520.com | ns3.01isp.com, ns4.01isp.net | 1 record |
✅ Authoritative Response
Server:47.239.41.106
NS records: ns3.01isp.com, ns4.01isp.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for server520.com (unsigned zone)
⏱️ Timing
Total: 4159ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 120.24.226.48 |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns3.01isp.com)