sbybf.cn - robtex.com
sbybf.cn
| DNSSEC | ⚠️ Not signed | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| 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=2034775952 | ||||||
Similar names
DNS History
4 records (0 active, 4 former)
○NSv1s1.xundns.com2017-02-07 → 2017-03-19 · 4 obs
● 2017-02-07 03:39:50
● 2017-03-19 12:57:28
○ 2026-04-21 09:05:04
○ 2026-05-10 22:48:32
● 2017-03-19 12:57:28
○ 2026-04-21 09:05:04
○ 2026-05-10 22:48:32
○NSv1s2.xundns.com2017-02-07 → 2017-03-19 · 4 obs
● 2017-02-07 03:39:50
● 2017-03-19 12:57:28
○ 2026-04-21 09:05:04
○ 2026-05-10 22:48:32
● 2017-03-19 12:57:28
○ 2026-04-21 09:05:04
○ 2026-05-10 22:48:32
○A107.150.39.1742017-02-07 → 2017-02-07 · 3 obs
● 2017-02-07 03:39:50
○ 2017-03-08 02:27:36
○ 2026-05-10 22:48:32
○ 2017-03-08 02:27:36
○ 2026-05-10 22:48:32
○A192.157.193.1572017-03-08 → 2017-03-19 · 5 obs
○ 2017-02-07 03:39:50
● 2017-03-08 02:27:36
● 2017-03-19 12:57:28
○ 2026-04-21 09:05:04
○ 2026-05-10 22:48:32
● 2017-03-08 02:27:36
● 2017-03-19 12:57:28
○ 2026-04-21 09:05:04
○ 2026-05-10 22:48:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, d.dns.cn, e.dns.cn, a.dns.cn... | - |
✅ Authoritative Response
Server:2001:dc7:3::1
NS records: b.dns.cn, d.dns.cn, e.dns.cn, a.dns.cn, c.dns.cn
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 2925ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|