21dnn.com - robtex.com
21dnn.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ms2.21dnn.com ⚠️ Not in zone NS records | ||||||
| NS | ns.21dnn.com ⚠️ Not in zone NS records | ||||||
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=1774542387 | ||||||
rank #380803 in the tld
📈 Tranco rank: #956,296
Same first word
Similar names
DNS History
5 records (2 active, 3 former)
●NSms2.21dnn.com2015-08-11 → 2026-03-26 · 2 obs
● 2015-08-11 00:45:12
● 2026-03-26 16:50:02
● 2026-03-26 16:50:02
○NSms3.21dnn.com2016-12-22 → 2016-12-22 · 4 obs
○ 2015-08-11 00:45:12
● 2016-12-22 08:39:22
○ 2026-02-17 12:20:56
○ 2026-03-26 16:50:02
● 2016-12-22 08:39:22
○ 2026-02-17 12:20:56
○ 2026-03-26 16:50:02
●NSns.21dnn.com2015-08-11 → 2026-03-26 · 2 obs
● 2015-08-11 00:45:12
● 2026-03-26 16:50:02
● 2026-03-26 16:50:02
○MXmxdomain.qq.com2015-08-11 → 2016-12-22 · 4 obs
● 2015-08-11 00:45:12
● 2016-12-22 08:39:22
○ 2026-02-17 12:20:56
○ 2026-03-26 16:50:02
● 2016-12-22 08:39:22
○ 2026-02-17 12:20:56
○ 2026-03-26 16:50:02
○A221.238.20.1982015-08-11 → 2016-12-22 · 4 obs
● 2015-08-11 00:45:12
● 2016-12-22 08:39:22
○ 2026-02-17 12:20:56
○ 2026-03-26 16:50:02
● 2016-12-22 08:39:22
○ 2026-02-17 12:20:56
○ 2026-03-26 16:50:02
🔍 DNS Trace
Analysis
Name Servers
Two name servers ms2.21dnn.com and ns.21dnn.com handle the delegation for 21dnn.com.
21dnn.com uses the same name server setup as other domains, for example linknanny.com and beijingww.com.