cortexx.com - robtex.com
cortexx.com
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=1776088042 | ||||||
Same first word
DNS History
14 records (7 active, 7 former)
●MXcortexx-com.mail.eo.outlook.com2026-02-25 → 2026-04-13 · 3 obs
● 2026-02-25 17:25:44
● 2026-04-13 14:16:48
○MXfilter4820.zerospam.ca2016-04-08 → 2017-06-18 · 5 obs
● 2016-04-08 02:41:40
● 2017-06-18 21:05:42
○ 2026-02-25 17:25:44
○ 2026-04-13 14:16:48
○MXfilter4821.zerospam.ca2016-04-08 → 2017-06-18 · 5 obs
● 2016-04-08 02:41:40
● 2017-06-18 21:05:42
○ 2026-02-25 17:25:44
○ 2026-04-13 14:16:48
○MXfilter999.zerospam.ca2016-04-08 → 2017-06-18 · 5 obs
● 2016-04-08 02:41:40
● 2017-06-18 21:05:42
○ 2026-02-25 17:25:44
○ 2026-04-13 14:16:48
○MXmail1.no-ip.com2015-05-06 → 2016-01-14 · 4 obs
● 2016-01-14 23:06:28
○ 2016-04-08 02:41:40
○ 2026-04-13 14:16:48
○MXmail2.no-ip.com2015-05-06 → 2016-01-14 · 4 obs
● 2016-01-14 23:06:28
○ 2016-04-08 02:41:40
○ 2026-04-13 14:16:48
○MXremote.cortexx.com2015-05-06 → 2016-01-14 · 4 obs
● 2016-01-14 23:06:28
○ 2016-04-08 02:41:40
○ 2026-04-13 14:16:48
●A3.132.17.1172026-02-25 → 2026-04-13 · 3 obs
● 2026-02-25 17:25:44
● 2026-04-13 14:16:48
○A68.68.0.1492015-05-06 → 2017-06-18 · 4 obs
● 2017-06-18 21:05:42
○ 2026-02-25 17:25:44
○ 2026-04-13 14:16:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net... | - |
| cortexx.com | ns3.no-ip.com, ns2.no-ip.com, ns1.no-ip.com | 6 records |
✅ Authoritative Response
Server:204.16.255.53
NS records: ns3.no-ip.com, ns2.no-ip.com, ns1.no-ip.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cortexx.com (unsigned zone)
⏱️ Timing
Total: 324ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 3.132.17.117 |
| NS | 5 | ns5.no-ip.com, ns4.no-ip.com... |
| MX | 1 | cortexx-com.mail.eo.outlook.com (pri: 10 |
| TXT | 3 | v=spf1 include:spf.protection.outlook.co, J25YFPD3S2WK9XU9E3JERGC2YXV7KP3N... |
| SOA | 1 | ns2.no-ip.com hostmaster.no-ip.com |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns3.no-ip.com, ns3.no-ip.com, ns2.no-ip.com...)
Analysis
IP Addresses
cortexx.com points to a single IP: 3.132.17.117.
Other host names, such as ec2-3-132-17-117.us-east-2.compute.amazonaws.com, share IP numbers with cortexx.com.
Name Servers
cortexx.com is delegated to five name servers: ns1.no-ip.com, ns2.no-ip.com, ns3.no-ip.com, ns4.no-ip.com and ns5.no-ip.com.
cortexx.com partially shares name servers with other domains; examples include cedyn.com, oebb.net, genesistechnology.net, forgottenfriends.net and colstonpaving.com.
These name servers are commonly used with static-1.no-ip.com, static-2.no-ip.com and static-3.no-ip.com.
Hosts with two IPs:
Host ns1.no-ip.com points to 2a07:dc00:1810::53 and 194.62.181.53.
Host ns2.no-ip.com points to 2a07:dc00:180::53 and 194.62.180.53.
Host ns3.no-ip.com points to 2a07:dc00:2550::53 and 204.16.255.53.
Host ns4.no-ip.com points to 2620:0:2e64::53 and 204.16.254.53.
Hosts with a single IP:
Host ns5.no-ip.com points to 194.62.181.53.
Hosts pointing to 194.62.181.53: ns1.no-ip.com and ns5.no-ip.com.
Mail Servers
cortexx.com is handled by a single mail server, cortexx-com.mail.eo.outlook.com.
Hostname cortexx-com.mail.eo.outlook.com points to eight IP numbers: 2a01:111:f403:c942::1, 2a01:111:f403:c942::2, 2a01:111:f403:c942::3, 2a01:111:f403:c944::, 52.101.190.0, 52.101.190.1, 52.101.190.3 and 52.101.192.0.