21vnet.com.cn - robtex.com
21vnet.com.cn
| DNSSEC | ⚠️ Not signed | ||||||
com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2030514619 | ||||||
Same first word
Similar names
DNS History
7 records (0 active, 7 former)
○NSbizcn1.dnspod.net2026-04-14 → 2026-04-14 · 1 obs
○ 2026-04-14 18:57:26
○NSbizcn2.dnspod.net2026-04-14 → 2026-04-14 · 1 obs
○ 2026-04-14 18:57:26
○NSdns.bizcn.com2017-03-29 → 2017-03-29 · 3 obs
○ 2015-08-09 06:51:06
● 2017-03-29 21:07:50
○ 2026-04-14 18:57:26
● 2017-03-29 21:07:50
○ 2026-04-14 18:57:26
○NSns1.dns.com.cn2015-08-09 → 2017-03-29 · 3 obs
● 2015-08-09 06:51:06
● 2017-03-29 21:07:50
○ 2026-04-14 18:57:26
● 2017-03-29 21:07:50
○ 2026-04-14 18:57:26
○NSns2.dns.com.cn2015-08-09 → 2017-03-29 · 3 obs
● 2015-08-09 06:51:06
● 2017-03-29 21:07:50
○ 2026-04-14 18:57:26
● 2017-03-29 21:07:50
○ 2026-04-14 18:57:26
○MXm-g4.dns.com.cn2015-08-09 → 2017-03-29 · 3 obs
● 2015-08-09 06:51:06
● 2017-03-29 21:07:50
○ 2026-04-14 18:57:26
● 2017-03-29 21:07:50
○ 2026-04-14 18:57:26
○A61.152.111.1902015-08-09 → 2017-03-29 · 3 obs
● 2015-08-09 06:51:06
● 2017-03-29 21:07:50
○ 2026-04-14 18:57:26
● 2017-03-29 21:07:50
○ 2026-04-14 18:57:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
✅ Authoritative Response
Server:203.119.25.1
NS records: a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn, e.dns.cn
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 737ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|