rex.cu - dns.ninja
rex.cu
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.tur.cu ⭐ | ||||||
| A | 181.225.229.90🇨🇺 INFOCOM181.225.224.0/19 | ||||||
| NS | ns2.tur.cu | ||||||
| A | 181.225.229.91🇨🇺 INFOCOM181.225.224.0/19 | ||||||
| NS | ns3.tur.cu | ||||||
| A | 181.225.229.92🇨🇺 INFOCOM181.225.224.0/19 | ||||||
| NS | ns4.tur.cu | ||||||
| A | 200.55.184.159🇨🇺 INFOCOM200.55.176.0/20 | ||||||
| MX | mail10.tur.cu ⭐ | ||||||
| A | 200.55.184.146🇨🇺 INFOCOM200.55.176.0/20 | ||||||
| MX | mail5.tur.cu ⭐ | ||||||
| A | 200.55.184.145🇨🇺 INFOCOM200.55.176.0/20 | ||||||
| MX | mail6.tur.cu ⭐ | ||||||
| A | 200.55.180.178🇨🇺 INFOCOM200.55.176.0/20 | ||||||
| MX | mail7.tur.cu ⭐ | ||||||
| A | 200.55.180.182🇨🇺 INFOCOM200.55.176.0/20 | ||||||
| MX | mail8.tur.cu ⭐ | ||||||
| A | 200.55.184.147🇨🇺 INFOCOM200.55.176.0/20 | ||||||
| MX | mail9.tur.cu ⭐ | ||||||
| A | 200.55.184.145🇨🇺 INFOCOM200.55.176.0/20 | ||||||
| TXT | v=spf1 ip4:200.55.180.179/32 ip4:200.55.180.180/32 ip4:200.55.184.141/32 ip4:... | ||||||
| SOA | ns1.tur.cuadmins@tur.cu 2026-04-27 #1 | ||||||
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 2026-06-04 #5 | ||||||
Same first word
Similar names
DNS History
11 records (10 active, 1 former)
○MXmail.rex.cu2015-08-09 → 2017-09-07 · 4 obs
● 2017-09-07 07:47:14
○ 2026-03-03 23:41:38
○ 2026-06-09 21:15:50
●MXmail10.tur.cu2026-03-03 → 2026-06-09 · 3 obs
● 2026-03-03 23:41:38
● 2026-06-09 21:15:50
●MXmail5.tur.cu2026-03-03 → 2026-06-09 · 3 obs
● 2026-03-03 23:41:38
● 2026-06-09 21:15:50
●MXmail6.tur.cu2026-03-03 → 2026-06-09 · 3 obs
● 2026-03-03 23:41:38
● 2026-06-09 21:15:50
●MXmail7.tur.cu2026-03-03 → 2026-06-09 · 3 obs
● 2026-03-03 23:41:38
● 2026-06-09 21:15:50
🔍 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 |
| rex.cu | ns3.tur.cu, ns1.tur.cu, ns2.tur.cu, ns4.tur.cu | 4 records |
✅ Authoritative Response
Server:181.225.229.91
NS records: ns3.tur.cu, ns1.tur.cu, ns2.tur.cu, ns4.tur.cu
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cu (unsigned zone)
⏱️ Timing
Total: 3517ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns2.tur.cu, ns3.tur.cu... |
| MX | 6 | mail7.tur.cu (pri: 10), mail8.tur.cu (pri: 10)... |
| TXT | 1 | v=spf1 ip4:200.55.180.179/32 ip4:200.55. |
| SOA | 1 | ns1.tur.cu admins.tur.cu |
📌 Glue Records Collected
Total: 14
In-bailiwick: 3 (ns.ceniai.net.cu, ns2.ceniai.net.cu, ns.ceniai.net.cu)
Out-of-bailiwick: 11 (cu.cctld.authdns.ripe.net, ns.dns.br, ns2.gip.net...)
Analysis
Name Servers
rex.cu delegates DNS authority to 4 name servers — ns1.tur.cu, ns2.tur.cu, ns3.tur.cu and ns4.tur.cu.
rex.cu has at least partial name server overlap with other domains, such as mintur.gob.cu, palmares.cu, cubatravel.cu and two others.
These name servers commonly co-occur with name servers ns1.g4its.com, ns2.g4its.com, ns5.tur.cu and three more.
ns1.tur.cu resolves to 181.225.229.90. ns2.tur.cu resolves to 181.225.229.91. ns3.tur.cu resolves to 181.225.229.92. ns4.tur.cu resolves to 200.55.184.159. All four hosts carry exactly one IP address.
Mail Servers
rex.cu is handled by 6 mail servers, mail10.tur.cu, mail5.tur.cu, mail6.tur.cu and three other.
rex.cu shares at least some of its mail servers with other domains — for example gcingla.gca.tur.cu, kawama.gca.tur.cu, campismopopular.cu and two more.
These mail servers often co-occur with mail7.tur.cu, mail8.tur.cu, mail9.tur.cu and four other mail servers.
Host names with one IP number:
mail10.tur.cu resolves to 200.55.184.146.
mail5.tur.cu resolves to 200.55.184.145.
mail6.tur.cu resolves to 200.55.180.178.
mail7.tur.cu resolves to 200.55.180.182.
mail8.tur.cu resolves to 200.55.184.147.
mail9.tur.cu resolves to 200.55.184.145.
The host names mail5.tur.cu and mail9.tur.cu both resolve to 200.55.184.145 IP addresses.