duchenghan.com - robtex.com
duchenghan.com
| DNSSEC | ⚠️ Not signed | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1776483812 | ||||||
Same first word
duchenghan.com |
DNS History
11 records (0 active, 11 former)
○NSceline.ns.cloudflare.com2026-02-23 → 2026-02-23 · 4 obs
○ 2016-12-14 00:51:38
● 2026-02-23 21:00:36
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
● 2026-02-23 21:00:36
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○NSdns10.hichina.com2016-12-14 → 2016-12-14 · 3 obs
● 2016-12-14 00:51:38
○ 2026-02-23 21:00:36
○ 2026-04-18 03:54:12
○ 2026-02-23 21:00:36
○ 2026-04-18 03:54:12
○NSdns9.hichina.com2016-12-14 → 2016-12-14 · 3 obs
● 2016-12-14 00:51:38
○ 2026-02-23 21:00:36
○ 2026-04-18 03:54:12
○ 2026-02-23 21:00:36
○ 2026-04-18 03:54:12
○NSnitin.ns.cloudflare.com2026-02-23 → 2026-02-23 · 4 obs
○ 2016-12-14 00:51:38
● 2026-02-23 21:00:36
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
● 2026-02-23 21:00:36
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○NSns3.expirationwarning.net2026-04-06 → 2026-04-06 · 3 obs
○ 2026-02-23 21:00:36
● 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
● 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○NSns7.expirationwarning.net2026-04-06 → 2026-04-06 · 3 obs
○ 2026-02-23 21:00:36
● 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
● 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○A104.21.65.2172026-02-23 → 2026-02-23 · 3 obs
● 2026-02-23 21:00:36
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○A172.67.192.1862026-02-23 → 2026-02-23 · 3 obs
● 2026-02-23 21:00:36
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○A2606:4700:3034::ac43:c0ba2026-02-23 → 2026-02-23 · 3 obs
● 2026-02-23 21:00:36
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○A2606:4700:3037::6815:41d92026-02-23 → 2026-02-23 · 3 obs
● 2026-02-23 21:00:36
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○ 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
○A51.195.17.682026-04-06 → 2026-04-06 · 3 obs
○ 2026-02-23 21:00:36
● 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
● 2026-04-06 14:54:24
○ 2026-04-18 03:54:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
✅ Authoritative Response
Server:192.54.112.30
NS records: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 120ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|