21xi.cn - robtex.com
21xi.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns7.hichina.com ⭐ | ||||||
| A | 2408:4009:501::15🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.43🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.63🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.203🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.213🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.43🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.63🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.113🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.123🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| NS | dns8.hichina.com | ||||||
| A | 2408:4009:501::16🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.44🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.54🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.204🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.214🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.44🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.54🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.114🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.124🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| SOA | dns7.hichina.comhostmaster@hichina.com 2026-01-09 #13 | ||||||
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=2034772197 | ||||||
Same first word
21xi.cn |
Similar names
DNS History
5 records (2 active, 3 former)
●NSdns7.hichina.com2026-02-23 → 2026-05-09 · 3 obs
● 2026-02-23 07:39:42
● 2026-05-09 22:16:26
●NSdns8.hichina.com2026-02-23 → 2026-05-09 · 3 obs
● 2026-02-23 07:39:42
● 2026-05-09 22:16:26
○NSf1g1ns1.dnspod.net2015-11-05 → 2016-04-15 · 4 obs
● 2016-04-15 01:51:42
○ 2026-02-23 07:39:42
○ 2026-05-09 22:16:26
○NSf1g1ns2.dnspod.net2015-11-05 → 2016-04-15 · 4 obs
● 2016-04-15 01:51:42
○ 2026-02-23 07:39:42
○ 2026-05-09 22:16:26
○A123.103.242.1062015-11-05 → 2016-04-15 · 4 obs
● 2016-04-15 01:51:42
○ 2026-02-23 07:39:42
○ 2026-05-09 22:16:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| 21xi.cn | dns7.hichina.com, dns8.hichina.com | - |
✅ Authoritative Response
Server:139.224.142.123
NS records: dns7.hichina.com, dns8.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21xi.cn (unsigned zone)
⏱️ Timing
Total: 1782ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns7.hichina.com, dns8.hichina.com |
| SOA | 1 | dns7.hichina.com hostmaster.hichina.com |
Analysis
Name Servers
Two name servers dns7.hichina.com and dns8.hichina.com are delegated to 21xi.cn.
21xi.cn uses the same name server configuration as other domains, such as dponline.com.cn, yjbao.com, researchbing.cn, antgene.com and reid-tech.com.
21xi.cn at least partially shares name servers with other domains, including h3r.cn, 7501.com.cn and myd9.com.
These name servers are commonly used with dns25.hichina.com and dns26.hichina.com.
Two hosts with nine IPs each:
Host dns7.hichina.com points to 2408:4009:501::15, 39.96.153.43, 39.96.153.63, 47.118.199.203, 47.118.199.213, 120.76.107.43, 120.76.107.63, 139.224.142.113 and 139.224.142.123.
Host dns8.hichina.com points to 2408:4009:501::16, 39.96.153.44, 39.96.153.54, 47.118.199.204, 47.118.199.214, 120.76.107.44, 120.76.107.54, 139.224.142.114 and 139.224.142.124.