sysdz.cn - robtex.com
sysdz.cn
| DNSSEC | ⚠️ Not signed | ||||||
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 | ||||||
Same first word
sysdz.cn |
Similar names
DNS History
8 records (0 active, 8 former)
○NSdns15.hichina.com2026-03-23 → 2026-03-23 · 2 obs
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
○ 2026-03-23 06:58:52
○NSdns16.hichina.com2026-03-23 → 2026-03-23 · 2 obs
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
○ 2026-03-23 06:58:52
○NSdns19.hichina.com2015-07-20 → 2017-03-18 · 4 obs
● 2015-07-20 06:43:22
● 2017-03-18 06:42:34
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
● 2017-03-18 06:42:34
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
○NSdns20.hichina.com2015-07-20 → 2017-03-18 · 4 obs
● 2015-07-20 06:43:22
● 2017-03-18 06:42:34
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
● 2017-03-18 06:42:34
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
○NSexpirens3.hichina.com2026-03-23 → 2026-03-23 · 2 obs
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
○ 2026-03-23 06:58:52
○NSexpirens4.hichina.com2026-03-23 → 2026-03-23 · 2 obs
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
○ 2026-03-23 06:58:52
○A124.172.156.752015-07-20 → 2017-03-18 · 4 obs
● 2015-07-20 06:43:22
● 2017-03-18 06:42:34
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
● 2017-03-18 06:42:34
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
○CNAMEexpired.hichina.com2026-03-23 → 2026-03-23 · 2 obs
○ 2026-03-23 06:58:50
○ 2026-03-23 06:58:52
○ 2026-03-23 06:58:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
✅ Authoritative Response
Server:2001:dc7:3::1
NS records: e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn, b.dns.cn
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 2684ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|