cu - dns.ninja
cu
(root)
| DNSSEC | β οΈ Not signed | ||||||
| NS | a.root-servers.net β | ||||||
| NS | b.root-servers.net | ||||||
| NS | c.root-servers.net | ||||||
| NS | d.root-servers.net | ||||||
| NS | e.root-servers.net | ||||||
| NS | f.root-servers.net | ||||||
| NS | g.root-servers.net | ||||||
| NS | h.root-servers.net | ||||||
| NS | i.root-servers.net | ||||||
| NS | j.root-servers.net | ||||||
| NS | k.root-servers.net | ||||||
| NS | l.root-servers.net | ||||||
| NS | m.root-servers.net | ||||||
| SOA | a.root-servers.netnstld@verisign-grs.com 2026-06-10 #1 | ||||||
Subdomains
Same first word
Similar names
DNS History
8 records (8 active, 0 former)
βNScu.cctld.authdns.ripe.net2015-08-30 β 2026-06-11 Β· 20 obs
β 2026-02-17 13:40:56
β 2026-02-17 15:37:10
β 2026-02-17 17:38:06
β 2026-03-11 12:49:02
β 2026-03-11 13:33:36
β 2026-03-11 15:23:00
β 2026-03-13 03:44:40
β 2026-03-13 04:48:32
β 2026-03-13 09:29:36
β 2026-03-13 10:35:30
β 2026-03-13 12:02:54
β 2026-03-13 13:52:48
β 2026-03-23 11:06:20
β 2026-03-23 12:26:36
β 2026-03-23 14:44:32
β 2026-04-15 13:54:42
β 2026-04-15 14:29:38
β 2026-04-15 15:19:04
β 2026-06-11 02:19:54
βNSdns-com.ceniai.inf.cu2026-04-21 β 2026-06-11 Β· 9 obs
β 2026-04-21 21:23:54
β 2026-05-06 03:15:02
β 2026-05-06 04:05:52
β 2026-05-06 04:53:16
β 2026-06-10 07:42:50
β 2026-06-10 14:22:30
β 2026-06-10 14:52:38
β 2026-06-11 02:19:54
βNSns.canada.cuba.cu2026-03-17 β 2026-06-11 Β· 18 obs
β 2026-03-17 16:38:02
β 2026-03-23 11:06:20
β 2026-03-23 12:26:36
β 2026-03-23 14:44:32
β 2026-04-08 22:55:36
β 2026-04-09 00:18:28
β 2026-04-09 00:52:44
β 2026-04-15 13:54:42
β 2026-04-15 14:29:38
β 2026-04-15 15:19:04
β 2026-05-06 03:15:02
β 2026-05-06 04:05:52
β 2026-05-06 04:53:16
β 2026-06-10 07:42:50
β 2026-06-10 14:22:30
β 2026-06-10 14:52:38
β 2026-06-11 02:19:54
βNSns.ceniai.net.cu2015-08-30 β 2026-06-11 Β· 2 obs
β 2026-06-11 02:19:54
βNSns.dns.br2015-08-30 β 2026-06-11 Β· 20 obs
β 2026-02-17 13:40:56
β 2026-02-17 15:37:10
β 2026-02-17 17:38:06
β 2026-03-11 12:49:02
β 2026-03-11 13:33:36
β 2026-03-11 15:23:00
β 2026-03-13 03:44:40
β 2026-03-13 04:48:32
β 2026-03-13 09:29:36
β 2026-03-13 10:35:30
β 2026-03-13 12:02:54
β 2026-03-13 13:52:48
β 2026-03-23 11:06:20
β 2026-03-23 12:26:36
β 2026-03-23 14:44:32
β 2026-04-15 13:54:42
β 2026-04-15 14:29:38
β 2026-04-15 15:19:04
β 2026-06-11 02:19:54
βNSns2.ceniai.net.cu2015-08-30 β 2026-06-11 Β· 2 obs
β 2026-06-11 02:19:54
βNSns2.gip.net2015-08-30 β 2026-06-11 Β· 20 obs
β 2026-02-17 13:40:56
β 2026-02-17 15:37:10
β 2026-02-17 17:38:06
β 2026-03-11 12:49:02
β 2026-03-11 13:33:36
β 2026-03-11 15:23:00
β 2026-03-13 03:44:40
β 2026-03-13 04:48:32
β 2026-03-13 09:29:36
β 2026-03-13 10:35:30
β 2026-03-13 12:02:54
β 2026-03-13 13:52:48
β 2026-03-23 11:06:20
β 2026-03-23 12:26:36
β 2026-03-23 14:44:32
β 2026-04-15 13:54:42
β 2026-04-15 14:29:38
β 2026-04-15 15:19:04
β 2026-06-11 02:19:54
βNSrip.psg.com2015-08-30 β 2026-06-11 Β· 20 obs
β 2026-02-17 13:40:56
β 2026-02-17 15:37:10
β 2026-02-17 17:38:06
β 2026-03-11 12:49:02
β 2026-03-11 13:33:36
β 2026-03-11 15:23:00
β 2026-03-13 03:44:40
β 2026-03-13 04:48:32
β 2026-03-13 09:29:36
β 2026-03-13 10:35:30
β 2026-03-13 12:02:54
β 2026-03-13 13:52:48
β 2026-03-23 11:06:20
β 2026-03-23 12:26:36
β 2026-03-23 14:44:32
β 2026-04-15 13:54:42
β 2026-04-15 14:29:38
β 2026-04-15 15:19:04
β 2026-06-11 02:19:54
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cu | cu.cctld.authdns.ripe.net, ns.dns.br, ns.ceniai.net.cu, ns2.gip.net... | 10 records |
β Authoritative Response
Server:169.158.128.136
NS records: cu.cctld.authdns.ripe.net, ns.dns.br, ns.ceniai.net.cu, ns2.gip.net, ns2.ceniai.net.cu, rip.psg.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for cu (unsigned zone)
β±οΈ Timing
Total: 286ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 8 | dns-com.ceniai.inf.cu, ns.ceniai.net.cu... |
| SOA | 1 | ns.ceniai.net.cu cu-tech.ceniai.inf.cu |
π Glue Records Collected
Total: 10
In-bailiwick: 3 (ns.ceniai.net.cu, ns.ceniai.net.cu, ns2.ceniai.net.cu)
Out-of-bailiwick: 7 (cu.cctld.authdns.ripe.net, cu.cctld.authdns.ripe.net, ns.dns.br...)
Analysis
Hierarchy
cu is the parent domain for serviquimica.cu, ncnorma.cu, tvyumuri.cu, cubazoo.cu, ecured.cu and several hundred additional host names.
Name Servers
The DNS delegation for cu covers 8 name servers: ns.dns.br, rip.psg.com, ns2.gip.net and 5 more.
At least some of cu's name servers are shared with other domains, for example 28.27.196.in-addr.arpa, waterloo.ia.us, gt and two more.
These name servers tend to co-occur with ns.ceniai.net.cu, ns2.ceniai.net.cu, ns3.gip.net and 7 other name servers in the same DNS delegations.
Host names pointing to two IP addresses:
ns.dns.br maps to two IP addresses β 200.160.0.5 and 2001:12ff:0:a20::5.
rip.psg.com maps to two IP addresses β 147.28.0.39 and 2001:418:1::39.
ns2.gip.net maps to two IP addresses β 57.67.127.194 and 2a01:ce89:8000:1001:57:67:127:194.
ns2.ceniai.net.cu maps to two IP addresses β 169.158.128.88 and 2001:1340:1:64::88.
ns.ceniai.net.cu maps to two IP addresses β 169.158.128.136 and 2001:1340:1:128::136.
cu.cctld.authdns.ripe.net maps to two IP addresses β 193.0.9.70 and 2a13:27c0:30::70.
Host names with one IP number:
ns.canada.cuba.cu points to the IP address 107.161.72.166.
dns-com.ceniai.inf.cu points to the IP address 169.158.128.69.