mail.cortex.su - dns.ninja

`mail.cortex.su`

	DNSSEC	⚠️ Not signed
	A	176.57.64.51^{🇧🇦 DDOS-GUARD176.57.64.0/23}

`cortex.su`

	DNSSEC	⚠️ Not signed
	A	176.57.64.51^{🇧🇦 DDOS-GUARD176.57.64.0/23}
	NS	`vps-11036334-444279.host4g.ru` ⭐
	NS	`ns1.rsnx.ru`
	NS	`ns2.rsnx.ru`
	MX	`mx.yandex.net` ⭐
	TXT	`v=spf1 +a +mx -all`
	SOA	`vps-11036334-444279.host4g.ru`dubdeniss@yandex.ru 2024-09-04 #10

Previously MX for

cortex.su

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DNS History

2 records (1 active, 1 former)

●A176.57.64.512026-04-04 → 2026-07-28 · 3 obs

○ 2016-03-23 10:53:58
● 2026-04-04 22:07:44
● 2026-07-28 07:31:14

○A89.253.247.222015-08-18 → 2016-03-23 · 4 obs

● 2015-08-18 03:58:08
● 2016-03-23 10:53:58
○ 2026-04-04 22:07:44
○ 2026-07-28 07:31:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
su	d.dns.ripn.net, c.tld-servers.ru, a.dns.ripn.net, b.dns.ripn.net...	12 records
cortex.su	ns1.rsnx.ru, ns2.rsnx.ru	-

✅ Authoritative Response

Server:89.253.252.15

NS records: ns1.rsnx.ru, ns2.rsnx.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cortex.su (unsigned zone)

⏱️ Timing

Total: 1369ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`176.57.64.51`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net...)

Analysis

IP Addresses

mail.cortex.su directs to one IP number, which is 176.57.64.51.

Among the host names that share IP numbers with mail.cortex.su are gidrok(0x616e616c).ru, xn--80aaf6atxr3a.xn--p1ai, gkzis.ru and two others.