21dn.com - dns.ninja
21dn.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.ename.net ⭐ | ||||||
| A | 2001:df2:f080:1::8🇭🇰 HKCICL-AS-AP2001:df2:f080::/48 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| A | 61.158.128.31🇨🇳 CHINA169-Backbone61.158.128.0/17 CNC Group CHINA169 Henan Province Network | ||||||
| A | 218.98.111.173🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | ns2.ename.net | ||||||
| A | 240e:97d:10:1402:0:1:0:1005🇨🇳 CHINANET-Guangdong-DongGuan-IDC240e:97d::/36 DongGuan IDC Network | ||||||
| A | 1.193.216.198🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network | ||||||
| A | 183.253.57.199🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.52🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | ns1.ename.netadmin@ename.net serial=1776716157 | ||||||
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=1784755602 | ||||||
Subdomains
www.21dn.com |
Same first word
Similar names
dn21.de |
dn21.com |
n2d1.akamaiedge.net |
2nd1.com |
nd12.com |
n1d2.akamaiedge.net |
21nd.com |
2d1n.com |
nd21.com |
d21n.com |
dn21.ru |
12nd.com |
1n2d.ai |
1n2d.com |
dn21.info |
DNS History
8 records (2 active, 6 former)
○NSdns1.hichina.com2015-07-22 → 2017-03-26 · 4 obs
● 2017-03-26 01:24:14
○ 2026-03-31 00:49:54
○ 2026-07-22 21:47:30
○NSdns2.hichina.com2015-07-22 → 2017-03-26 · 4 obs
● 2017-03-26 01:24:14
○ 2026-03-31 00:49:54
○ 2026-07-22 21:47:30
○NSdns29.hichina.com2026-03-31 → 2026-03-31 · 5 obs
● 2026-03-31 00:49:54
● 2026-03-31 02:34:50
○ 2026-04-24 11:18:52
○ 2026-07-22 21:47:30
○NSdns30.hichina.com2026-03-31 → 2026-03-31 · 5 obs
● 2026-03-31 00:49:54
● 2026-03-31 02:34:50
○ 2026-04-24 11:18:52
○ 2026-07-22 21:47:30
●NSns1.ename.net2026-04-24 → 2026-07-22 · 3 obs
● 2026-04-24 11:18:52
● 2026-07-22 21:47:30
●NSns2.ename.net2026-04-24 → 2026-07-22 · 3 obs
● 2026-04-24 11:18:52
● 2026-07-22 21:47:30
○MXexsmtp.71.com2015-07-22 → 2017-03-26 · 4 obs
● 2017-03-26 01:24:14
○ 2026-03-31 00:49:54
○ 2026-07-22 21:47:30
○A47.98.225.492026-03-31 → 2026-03-31 · 4 obs
● 2026-03-31 02:34:50
○ 2026-04-24 11:18:52
○ 2026-07-22 21:47:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net... | - |
| 21dn.com | ns1.ename.net, ns2.ename.net | - |
✅ Authoritative Response
Server:211.99.99.52
NS records: ns1.ename.net, ns2.ename.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21dn.com (unsigned zone)
⏱️ Timing
Total: 2373ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.ename.net, ns2.ename.net |
| SOA | 1 | ns1.ename.net admin.ename.net |
Analysis
Hierarchy
21dn.com is a parent domain of www.21dn.com.
Name Servers
Two name servers handle the delegation for 21dn.com: ns1.ename.net and ns2.ename.net.
21dn.com shares its name server setup with other domains, including meground.cn, imdac.com, hbpay.com and two others.
21dn.com is at least partially co-delegated on name servers with other domains, such as madhouse.com.cn.
Host names resolving to four IP addresses:
ns2.ename.net points to 1.193.216.198, 183.253.57.199, 211.99.99.52 and 240e:97d:10:1402:0:1:0:1005.
Host names with three IP numbers:
The hostname ns1.ename.net points to 61.158.128.31, 218.98.111.173 and 2001:df2:f080:1::8.