cortexia.com - dns.ninja

`cortexia.com`

DNSSEC	⚠️ Not signed
A	65.39.205.54^{🇨🇦 SQUARESPACE-165.39.205.0/24 Squarespace Route Object}
		PTR	`squarespace.com`
NS	`ns1.r4l.com` ⭐ ⚠️ Not in zone NS records
		A	2607:5300:60:34bf::1^{🇨🇦 OVH2607:5300::/32 Hosting route}
		A	142.4.204.181^{🇨🇦 OVH142.4.192.0/19 Hosting route}
			PTR	`mxgw.r4l.com`
NS	`ns2.r4l.com`
		A	2600:3c03::f03c:91ff:fe93:e369^{🇺🇸 AKAMAI-LINODE-AP2600:3c03::/32 Akamai Technologies}
			PTR	`ns2.r4l.com`
		A	66.228.40.6^{🇺🇸 AKAMAI-LINODE-AP66.228.32.0/20 Akamai Technologies}
			PTR	`ns2.r4l.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`google-site-verification=IUZ1_MxJ34bkLqjBMFVb1Kv1--diZLQheKeRwIKu4CA`
TXT	`v=spf1 include:_spf.protonmail.ch mx ~all`
TXT	`protonmail-verification=190ff9d58c8638f1e2c9c3bdbdf18212b5fc05d3`
TXT	`protonmail-verification=f4afd88130d75e7852c1138df193aa732cef08d2`
SOA	`ns1.r4l.com`support@register4less.com serial=1772744866

`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.net`nstld@verisign-grs.com serial=1783217966

Same first word

cortexia.org

cortexia.com

cortexia.info

cortexia.nl

cortexia.eu

cortexia.ch

cortexia.com.au

cortexia.net

Similar names

DNS History

12 records (5 active, 7 former)

●NSns1.r4l.com2015-06-05 → 2026-07-05 · 2 obs

● 2015-06-05 14:40:12
● 2026-07-05 02:45:16

●NSns2.r4l.com2015-06-05 → 2026-07-05 · 2 obs

● 2015-06-05 14:40:12
● 2026-07-05 02:45:16

○MXalt1.aspmx.l.google.com2015-06-05 → 2026-02-22 · 4 obs

● 2015-06-05 14:40:12
● 2026-02-22 05:26:28
○ 2026-03-14 06:21:46
○ 2026-07-05 02:45:16

○MXalt2.aspmx.l.google.com2015-06-05 → 2026-02-22 · 4 obs

● 2015-06-05 14:40:12
● 2026-02-22 05:26:28
○ 2026-03-14 06:21:46
○ 2026-07-05 02:45:16

○MXaspmx.l.google.com2015-06-05 → 2026-02-22 · 4 obs

● 2015-06-05 14:40:12
● 2026-02-22 05:26:28
○ 2026-03-14 06:21:46
○ 2026-07-05 02:45:16

○MXaspmx2.googlemail.com2015-06-05 → 2026-02-22 · 4 obs

● 2015-06-05 14:40:12
● 2026-02-22 05:26:28
○ 2026-03-14 06:21:46
○ 2026-07-05 02:45:16

○MXaspmx3.googlemail.com2015-06-05 → 2026-02-22 · 4 obs

● 2015-06-05 14:40:12
● 2026-02-22 05:26:28
○ 2026-03-14 06:21:46
○ 2026-07-05 02:45:16

○MXaspmx4.googlemail.com2015-06-05 → 2026-02-22 · 4 obs

● 2015-06-05 14:40:12
● 2026-02-22 05:26:28
○ 2026-03-14 06:21:46
○ 2026-07-05 02:45:16

○MXaspmx5.googlemail.com2015-06-05 → 2026-02-22 · 4 obs

● 2015-06-05 14:40:12
● 2026-02-22 05:26:28
○ 2026-03-14 06:21:46
○ 2026-07-05 02:45:16

●MXmail.protonmail.ch2026-03-14 → 2026-07-05 · 3 obs

○ 2026-02-22 05:26:28
● 2026-03-14 06:21:46
● 2026-07-05 02:45:16

●MXmailsec.protonmail.ch2026-03-14 → 2026-07-05 · 3 obs

○ 2026-02-22 05:26:28
● 2026-03-14 06:21:46
● 2026-07-05 02:45:16

●A65.39.205.542015-06-05 → 2026-07-05 · 2 obs

● 2015-06-05 14:40:12
● 2026-07-05 02:45:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net...	-
cortexia.com	ns1.r4l.com, ns2.r4l.com	4 records

✅ Authoritative Response

Server:142.4.204.181

NS records: ns1.r4l.com, ns2.r4l.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cortexia.com (unsigned zone)

⏱️ Timing

Total: 190ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`65.39.205.54`
NS	1	`ns2.r4l.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	4	`v=spf1 include:_spf.protonmail.ch mx ~al, protonmail-verification=190ff9d58c8638f1...`
SOA	1	`ns1.r4l.com support.register4less.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.r4l.com, ns1.r4l.com, ns2.r4l.com...)

Analysis

IP Addresses

cortexia.com resolves to one IP address: 65.39.205.54.

host154.isitc.com, ixprs.com, mail.movingbath.com and two other host names share IP numbers with cortexia.com.

Name Servers

cortexia.com uses two name servers for its delegation: ns1.r4l.com and ns2.r4l.com.

cortexia.com uses the same name servers as several other domains — among them licenseprofessor.com, opensignal.org, a711lions.org and two more.

The two host names ns1.r4l.com and ns2.r4l.com each have a pair of IP addresses: ns1.r4l.com has 142.4.204.181 and 2607:5300:60:34bf::1, and ns2.r4l.com has 66.228.40.6 and 2600:3c03::f03c:91ff:fe93:e369.

Mail Servers

Mail for cortexia.com is handled by two mail servers — mail.protonmail.ch and mailsec.protonmail.ch.

cortexia.com uses an identical mail server configuration to several other domains — among them kenpowers.net, mail.trentandamelia.com, illusionary.com and two more.

cortexia.com has at least partial mail server overlap with other domains such as fbramey.com, geekmachine.info, metamind.org and two more.

mail.protonmail.ch and mailsec.protonmail.ch each resolve to three IP addresses. mail.protonmail.ch resolves to 176.119.200.128, 185.70.42.128 and 185.205.70.128. mailsec.protonmail.ch resolves to 176.119.200.129, 185.70.42.129 and 185.205.70.129.