cortex.su - robtex.com
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 | ||||||
| A | 89.253.252.13🇷🇺 RUSONYX-AS89.253.248.0/21 RUSONYX-RU | ||||||
| PTR | ns1.rsnx.ru | ||||||
| NS | ns2.rsnx.ru | ||||||
| A | 89.253.252.15🇷🇺 RUSONYX-AS89.253.248.0/21 RUSONYX-RU | ||||||
| PTR | ns2.rsnx.ru | ||||||
| MX | mx.yandex.net ⭐ | ||||||
| A | 2a02:6b8::311🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | mxfront.stable.qloud-b.yandex.net | ||||||
| A | 77.88.21.249🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network | ||||||
| PTR | mxfront.stable.qloud-b.yandex.net | ||||||
| TXT | v=spf1 +a +mx -all | ||||||
| SOA | vps-11036334-444279.host4g.rudubdeniss@yandex.ru 2024-09-04 #10 | ||||||
su
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=650208848 | ||||||
Subdomains
mail.cortex.su |
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
●NSns1.rsnx.ru2026-03-24 → 2026-04-23 · 3 obs
● 2026-03-24 19:15:04
● 2026-04-23 19:26:58
○NSns1.rusonyx.ru2015-05-18 → 2016-04-08 · 4 obs
● 2016-04-08 20:16:40
○ 2026-03-24 19:15:04
○ 2026-04-23 19:26:58
●NSns2.rsnx.ru2026-03-24 → 2026-04-23 · 3 obs
● 2026-03-24 19:15:04
● 2026-04-23 19:26:58
○NSns2.rusonyx.ru2015-05-18 → 2016-04-08 · 4 obs
● 2016-04-08 20:16:40
○ 2026-03-24 19:15:04
○ 2026-04-23 19:26:58
●NSvps-11036334-444279.host4g.ru2026-03-24 → 2026-04-23 · 3 obs
● 2026-03-24 19:15:04
● 2026-04-23 19:26:58
○MXmail.cortex.su2015-05-18 → 2016-04-08 · 4 obs
● 2016-04-08 20:16:40
○ 2026-03-24 19:15:04
○ 2026-04-23 19:26:58
●MXmx.yandex.net2026-03-24 → 2026-04-23 · 3 obs
● 2026-03-24 19:15:04
● 2026-04-23 19:26:58
●A176.57.64.512026-03-24 → 2026-04-23 · 3 obs
● 2026-03-24 19:15:04
● 2026-04-23 19:26:58
○A89.253.247.222015-05-18 → 2016-04-08 · 4 obs
● 2016-04-08 20:16:40
○ 2026-03-24 19:15:04
○ 2026-04-23 19:26:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | d.dns.ripn.net, e.dns.ripn.net, b.dns.ripn.net, a.dns.ripn.net... | 10 records |
| cortex.su | ns1.rsnx.ru, ns2.rsnx.ru | - |
✅ Authoritative Response
Server:89.253.252.13
NS records: ns1.rsnx.ru, ns2.rsnx.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cortex.su (unsigned zone)
⏱️ Timing
Total: 1351ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 176.57.64.51 |
| NS | 2 | ns1.rsnx.ru, ns2.rsnx.ru |
| MX | 1 | mx.yandex.net (pri: 10) |
| TXT | 1 | v=spf1 +a +mx -all |
| SOA | 1 | vps-11036334-444279.host4g.ru dubdeniss. |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net...)
Analysis
Hierarchy
The parent of mail.cortex.su is cortex.su.
IP Addresses
cortex.su points to IP number: 176.57.64.51.
Other host names such as l-ps.ru, nevskiemastera.ru, www.xn--80aaf6atxr3a.xn--p1ai, gripil.ru and gidrok(0x616e616c).ru share IPs with cortex.su.
Name Servers
cortex.su is delegated to three name servers: vps-11036334-444279.host4g.ru, ns1.rsnx.ru and ns2.rsnx.ru.
cortex.su at least partially shares name servers with other domains, for instance ikstudio.ru, rakurs.ru, filmgear.ru, albomix.com and andrianov.us.
These name servers are commonly used alongside dns1.zenon.net, dns2.zenon.net, sni2.rusonyx.ru, ns1.infobox.org, ns2.infobox.org, ns3.infobox.org, ns4.infobox.org, sni1.rusonyx.ru, sni4.rusonyx.ru and sni5.rusonyx.ru.
Host names with a single IP:
ns1.rsnx.ru points to 89.253.252.13.
ns2.rsnx.ru points to 89.253.252.15.
Mail Servers
cortex.su is handled by a single mail server, mx.yandex.net.
The mail server setup for cortex.su matches that of other domains, for instance sense.com.tr, cigarday.ru, hz.com.vn, tmstyle.ru and ferrouslighting.com.
cortex.su shares at least partially some mail servers with other domains, including rusremont-kvartir.ru, krc-briz.ru, idnps.ru, rcfs.ru and apostol.ru.
mx.yandex.net points to two IPs: 2a02:6b8::311 and 77.88.21.249.