21jcz.com - robtex.com
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21jcz.com
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=1771291435 | ||||||
DNS History
6 records (5 active, 1 former)
●NSdns15.hichina.com2017-08-10 → 2026-02-19 · 2 obs
● 2026-02-19 00:05:40
●NSdns16.hichina.com2017-08-10 → 2026-02-19 · 2 obs
● 2026-02-19 00:05:40
●MXmxn.mxhichina.com2017-08-10 → 2026-02-19 · 2 obs
● 2026-02-19 00:05:40
●MXmxw.mxhichina.com2017-08-10 → 2026-02-19 · 2 obs
● 2026-02-19 00:05:40
○A101.37.128.1482017-08-10 → 2017-08-10 · 3 obs
○ 2026-02-19 00:05:36
○ 2026-02-19 00:05:40
●A139.196.111.712026-02-19 → 2026-02-19 · 3 obs
● 2026-02-19 00:05:36
● 2026-02-19 00:05:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| 21jcz.com | dns15.hichina.com, dns16.hichina.com | - |
✅ Authoritative Response
Server: 120.76.107.42
NS records: dns15.hichina.com, dns16.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21jcz.com (unsigned zone)
⏱️ Timing
Total: 706ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 139.196.111.71 |
| NS | 2 | dns15.hichina.com, dns16.hichina.com |
| MX | 2 | mxw.mxhichina.com (pri: 10), mxn.mxhichina.com (pri: 5) |
| SOA | 1 | dns15.hichina.com hostmaster.hichina.com |
AI analysis
21jcz.com resolves to one IP number: 139.196.111.71.
21jcz.com is delegated to two name servers dns15.hichina.com and dns16.hichina.com.
21jcz.com shares the same name server setup as other domains, for instance starchcap.com, teleary.com, qqgui.com, szosen.cn and bjjfbags.com.
21jcz.com at least partially shares name servers with other domains, for instance jasbest.com, bjbbj.cn, syyufeng.com, dameng.net and yutaiwood.com.
these name servers are often used together with expirens3.hichina.com, expirens4.hichina.com, dns10.hichina.com and dns9.hichina.com.
Host names with nine IP numbers:
dns15.hichina.com points to: 2408:4009:501::23, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122.
dns16.hichina.com points to: 2408:4009:501::24, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121.
Two mail servers handle 21jcz.com: mxn.mxhichina.com and mxw.mxhichina.com.
21jcz.com shares the same mail server setup as other domains, for instance raypcb.org, babeltimex.com, cyberdy.com, gh-tech.net and figostar.com.
21jcz.com shares some mail servers with other domains, at least partially, for instance 1and1-mail.com, baidusx.com, detek.cn, ykgl.cn and synstar.cn.
these mail servers are commonly used with the mail servers mxus.mxhichina.com.
Two IP numbers for a host: mxn.mxhichina.com points to 47.246.136.231 and 47.246.137.47.
One IP number for a host: mxw.mxhichina.com points to 47.246.99.195.