edu.cu - dns.ninja
edu.cu
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns.ceniai.net.cu ⭐ ⚠️ Not in parent delegation | ||||||
| A | 2001:1340:1:128::136🇨🇺 ASCENIAI2001:1340::/32 COLUMBUS NETWORKS TRANSIT CUSTOMERS | ||||||
| PTR | ns.ceniai.net.cu | ||||||
| A | 169.158.128.136🇨🇺 ASCENIAI169.158.0.0/16 Red CENIAInternet | ||||||
| PTR | ns.ceniai.net.cu | ||||||
| NS | cu.cctld.authdns.ripe.net ⚠️ Not in parent delegation | ||||||
| A | 2a13:27c0:30::70🇳🇱 RIPE-NCC-AUTHDNS-AS2a13:27c0:30::/48 Auth DNS Service Network | ||||||
| PTR | cu.cctld.authdns.ripe.net | ||||||
| A | 193.0.9.70🇳🇱 RIPE-NCC-AUTHDNS-AS193.0.9.0/24 Auth DNS Service Network | ||||||
| PTR | cu.cctld.authdns.ripe.net | ||||||
| NS | ns.canada.cuba.cu ⚠️ Not in parent delegation | ||||||
| A | 107.161.72.166🇨🇦 AS32613107.161.64.0/20 iWeb Technologies Inc. | ||||||
| NS | ns.citmatel.com.cu ⚠️ Not in parent delegation | ||||||
| A | 169.158.128.88🇨🇺 ASCENIAI169.158.0.0/16 Red CENIAInternet | ||||||
| NS | rip.psg.com ⚠️ Not in parent delegation | ||||||
| A | 2001:418:1::39🇺🇸 RGNET-SEA2001:418:1::/48 Proxy RO for Randy/psg.com | ||||||
| PTR | rip.psg.com | ||||||
| PTR | b.ns.lb | ||||||
| A | 147.28.0.39🇪🇪 RGNET-SEA147.28.0.0/23 RGnet Westin | ||||||
| PTR | rip.psg.com | ||||||
| PTR | b.ns.lb | ||||||
| SOA | ns.ceniai.net.cucu-tech@ceniai.net.cu 2026-04-02 #0 | ||||||
cu
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns2.ceniai.net.cu ⭐ | ||||||
| NS | cu.cctld.authdns.ripe.net ⚠️ Not in parent delegation | ||||||
| NS | dns-com.ceniai.inf.cu ⚠️ Not in parent delegation | ||||||
| NS | ns.canada.cuba.cu ⚠️ Not in parent delegation | ||||||
| NS | ns.ceniai.net.cu | ||||||
| NS | ns.dns.br ⚠️ Not in parent delegation | ||||||
| NS | ns2.gip.net ⚠️ Not in parent delegation | ||||||
| NS | rip.psg.com ⚠️ Not in parent delegation | ||||||
| SOA | ns.ceniai.net.cucu-tech@ceniai.inf.cu 2026-06-03 #1 | ||||||
Subdomains
cnic.edu.cu |
reduc.edu.cu |
centis.edu.cu |
censa.edu.cu |
mes.edu.cu |
upr.edu.cu |
cigb.edu.cu |
ucpejv.edu.cu |
reduniv.edu.cu |
uart.edu.cu |
uij.edu.cu |
uo.edu.cu |
finlay.edu.cu |
inca.edu.cu |
cphr.edu.cu |
ica.edu.cu |
isri.edu.cu |
unah.edu.cu |
ismm.edu.cu |
ucf.edu.cu |
iiia.edu.cu |
cujae.edu.cu |
cneuro.edu.cu |
ult.edu.cu |
uclv.edu.cu |
uho.edu.cu |
uniss.edu.cu |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NScu.cctld.authdns.ripe.net2015-08-27 → 2026-06-04 · 9 obs
● 2026-03-11 09:27:36
○ 2026-03-11 21:11:00
● 2026-03-12 00:51:22
● 2026-03-12 23:42:14
○ 2026-03-13 08:46:12
○ 2026-03-13 11:55:34
● 2026-03-13 14:41:26
● 2026-06-04 01:43:24
●NSns.canada.cuba.cu2026-03-17 → 2026-06-04 · 3 obs
● 2026-03-17 17:08:44
● 2026-06-04 01:43:24
●NSns.ceniai.net.cu2015-08-27 → 2026-06-04 · 9 obs
● 2026-03-11 09:27:36
○ 2026-03-11 21:11:00
● 2026-03-12 00:51:22
● 2026-03-12 23:42:14
○ 2026-03-13 08:46:12
○ 2026-03-13 11:55:34
● 2026-03-13 14:41:26
● 2026-06-04 01:43:24
●NSns.citmatel.com.cu2015-08-27 → 2026-06-04 · 9 obs
● 2026-03-11 09:27:36
○ 2026-03-11 21:11:00
● 2026-03-12 00:51:22
● 2026-03-12 23:42:14
○ 2026-03-13 08:46:12
○ 2026-03-13 11:55:34
● 2026-03-13 14:41:26
● 2026-06-04 01:43:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cu | cu.cctld.authdns.ripe.net, ns.dns.br, ns.ceniai.net.cu, ns2.gip.net... | 10 records |
✅ 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
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cu (unsigned zone)
⏱️ Timing
Total: 299ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 5 | cu.cctld.authdns.ripe.net, ns.canada.cuba.cu... |
| SOA | 1 | ns.ceniai.net.cu cu-tech.ceniai.net.cu |
📌 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
edu.cu is the parent domain of cnic.edu.cu, reduc.edu.cu, centis.edu.cu, censa.edu.cu, mes.edu.cu and a few other host names.
Name Servers
edu.cu is delegated to 5 name servers: rip.psg.com, ns.citmatel.com.cu, ns.canada.cuba.cu and two others.
edu.cu shares at least some of its name servers with other domains, including 7.227.193.in-addr.arpa, 133.210.41.in-addr.arpa, net.al and two others.
ns.ceniai.net.cu, ns2.ceniai.net.cu and demon.mtn.co.ug — plus seven other name servers — are routinely found together with these name servers.
Hosts with two IP numbers each:
rip.psg.com points to 147.28.0.39 and 2001:418:1::39.
ns.ceniai.net.cu points to 169.158.128.136 and 2001:1340:1:128::136.
cu.cctld.authdns.ripe.net points to 193.0.9.70 and 2a13:27c0:30::70.
Host names with one IP number:
ns.citmatel.com.cu points to 169.158.128.88.
ns.canada.cuba.cu points to 107.161.72.166.