gca.su - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

gca.su

DNSSEC⚠️ Not signed
A185.137.235.77🇷🇺 SELECTEL185.137.235.0/24 Selectel Route Object
A185.137.235.103🇷🇺 SELECTEL185.137.235.0/24 Selectel Route Object
A185.137.235.125🇷🇺 SELECTEL185.137.235.0/24 Selectel Route Object
A185.137.235.192🇷🇺 SELECTEL185.137.235.0/24 Selectel Route Object
A185.137.235.193🇷🇺 SELECTEL185.137.235.0/24 Selectel Route Object
NSns-mail03.getcourse.ru ⭐
A46.148.238.227🇷🇺 SELECTEL46.148.238.0/23 Selectel Route Object
NSns-mail01.getcourse.ru
A46.148.238.197🇷🇺 SELECTEL46.148.238.0/23 Selectel Route Object
NSns-mail02.getcourse.ru
A46.148.238.142🇷🇺 SELECTEL46.148.238.0/23 Selectel Route Object
MXmx.getcourse.ru ⭐
A212.41.14.129🇷🇺 SELECTEL212.41.14.0/23 Selectel Route Object
TXTv=spf1 include:deae274b6e2d6bd4d2afe7a75212ea43.gca.to ~all
SOAns-mail03.getcourse.ruhostmaster@gca.su serial=1580

su

DNSSEC🔒 Signed (DS record present)
NSa.dns.ripn.net ⭐
NSb.dns.ripn.net
NSc.tld-servers.ru
NSd.dns.ripn.net
NSe.dns.ripn.net
NSf.dns.ripn.net
SOAa.dns.ripn.nethostmaster@ripn.net serial=650210242
📈 Tranco rank: #699,478
⚠️ On DNS blocklist: spam-tlds

Subdomains

mta-av-038.gca.su
mta-av-092.gca.su
mta-av-027.gca.su
mta-mtw033.gca.su
mta-mtw012.gca.su
mta-av-088.gca.su
mta-av-026.gca.su
mta-av-126.gca.su
mta-av-099.gca.su
mta-av-017.gca.su
mta-av-033.gca.su
mta-tw-144.gca.su
mta-av-103.gca.su
mta-av-046.gca.su
mta-tw-199.gca.su
mta-av-125.gca.su
mta-mtw026.gca.su
mta-mtw003.gca.su
mta-av-028.gca.su
mta-av-025.gca.su
mta-av-029.gca.su
mta-av-018.gca.su
mta-tw-175.gca.su
mta-tw-131.gca.su
mta-tw-020.gca.su
mta-av-020.gca.su
mta-av-112.gca.su
mta-av-105.gca.su
mta-av-058.gca.su
mta-mtw044.gca.su
mta-av-019.gca.su
mta-av-115.gca.su
mta-av-089.gca.su
mta-tw-118.gca.su
mta-av-055.gca.su
mta-tw-184.gca.su
mta-av-094.gca.su
mta-tw-035.gca.su
mta-av-129.gca.su

Same first word

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gca.gov.uk
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gca.glass
gca.cards
gca.no-ip.biz
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gca.cl
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gca.mobi
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gca.training

Similar names

acg.digital
acg.casa
gac.edu
acg.aero
acg.la
gac.ch
agc.ba
agc.edu.au
cag.gov.in
acg.sx
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gac.at
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agc.com.pl
agc.name
gac.cn.com
cag.org.in
acg.hu
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cga.asia
gac.com.kz
agc.si
acg.uz
gac.com.es
acg.de
acg.cn
cag.expert
acg.com.gn
agc.com.af
cga.su
cag.com.br
cga.nic.in
acg.fr
acg.uno
gac.gr
acg.hk
agc.at
agc.edu.pk
acg.wtf
gac.com.au
cga.media
agc.as
agc.de
gac.edu.pk
acg.sg
cag.tech
agc.gov.my
acg.am
gac.by
cag.sk
cga.biz
acg.top
acg.design
cga.jp
agc.com.sa
cag.co.za
acg.edu.kg
cga.net.au
cag.su
cga.care
cga.se
agc.jp
cag.xyz
acg.lol
acg.com
acg.ae
agc.gr
agc.cn
acg.network
gac.co.za
cga.hk
gac.com.pt
cga.no
cag.com
agc.com.ua
agc.top
gac.net
acg.at
acg.ph
cga.vn
cga.es
acg.com.tw
agc.gov.sg
acg.se
agc.com.cy
agc.kz
agc.gov.bn
acg.ch
cga.cw
cag.partners

DNS History

9 records (9 active, 0 former)

NSns-mail01.getcourse.runs-mail02.getcourse.runs-mail03.getcourse.ruMXmx.getcourse.ruA185.137.235.103185.137.235.125185.137.235.192185.137.235.193185.137.235.77
●NSns-mail01.getcourse.ru2026-02-17 → 2026-08-17 · 7 obs
● 2026-02-17 23:28:54
● 2026-02-21 21:55:06
○ 2026-02-28 05:07:06
● 2026-02-28 17:54:42
○ 2026-02-28 19:24:38
● 2026-03-05 23:09:14
● 2026-08-17 13:23:34
●NSns-mail02.getcourse.ru2026-02-17 → 2026-08-17 · 7 obs
● 2026-02-17 23:28:54
● 2026-02-21 21:55:06
○ 2026-02-28 05:07:06
● 2026-02-28 17:54:42
○ 2026-02-28 19:24:38
● 2026-03-05 23:09:14
● 2026-08-17 13:23:34
●NSns-mail03.getcourse.ru2026-02-17 → 2026-08-17 · 7 obs
● 2026-02-17 23:28:54
● 2026-02-21 21:55:06
○ 2026-02-28 05:07:06
● 2026-02-28 17:54:42
○ 2026-02-28 19:24:38
● 2026-03-05 23:09:14
● 2026-08-17 13:23:34
●MXmx.getcourse.ru2026-02-17 → 2026-08-17 · 9 obs
● 2026-02-17 23:28:54
● 2026-02-21 21:55:06
○ 2026-02-28 05:07:06
● 2026-02-28 17:54:42
○ 2026-02-28 19:24:38
● 2026-03-05 23:09:14
○ 2026-06-24 14:11:14
● 2026-07-01 01:22:18
● 2026-08-17 13:23:34
●A185.137.235.1032026-02-17 → 2026-08-17 · 9 obs
● 2026-02-17 23:28:54
● 2026-02-21 21:55:06
○ 2026-02-28 05:07:06
● 2026-02-28 17:54:42
○ 2026-02-28 19:24:38
● 2026-03-05 23:09:14
○ 2026-06-24 14:11:14
● 2026-07-01 01:22:18
● 2026-08-17 13:23:34
●A185.137.235.1252026-02-17 → 2026-08-17 · 9 obs
● 2026-02-17 23:28:54
● 2026-02-21 21:55:06
○ 2026-02-28 05:07:06
● 2026-02-28 17:54:42
○ 2026-02-28 19:24:38
● 2026-03-05 23:09:14
○ 2026-06-24 14:11:14
● 2026-07-01 01:22:18
● 2026-08-17 13:23:34
●A185.137.235.1922026-02-17 → 2026-08-17 · 9 obs
● 2026-02-17 23:28:54
● 2026-02-21 21:55:06
○ 2026-02-28 05:07:06
● 2026-02-28 17:54:42
○ 2026-02-28 19:24:38
● 2026-03-05 23:09:14
○ 2026-06-24 14:11:14
● 2026-07-01 01:22:18
● 2026-08-17 13:23:34
●A185.137.235.1932026-02-17 → 2026-08-17 · 9 obs
● 2026-02-17 23:28:54
● 2026-02-21 21:55:06
○ 2026-02-28 05:07:06
● 2026-02-28 17:54:42
○ 2026-02-28 19:24:38
● 2026-03-05 23:09:14
○ 2026-06-24 14:11:14
● 2026-07-01 01:22:18
● 2026-08-17 13:23:34
●A185.137.235.772026-02-17 → 2026-08-17 · 9 obs
● 2026-02-17 23:28:54
● 2026-02-21 21:55:06
○ 2026-02-28 05:07:06
● 2026-02-28 17:54:42
○ 2026-02-28 19:24:38
● 2026-03-05 23:09:14
○ 2026-06-24 14:11:14
● 2026-07-01 01:22:18
● 2026-08-17 13:23:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sub.dns.ripn.net, e.dns.ripn.net, c.tld-servers.ru, a.dns.ripn.net...-
gca.suns-mail02.getcourse.ru, ns-mail01.getcourse.ru, ns-mail03.getcourse.ru-

✅ Authoritative Response

Server:46.148.238.142

NS records: ns-mail02.getcourse.ru, ns-mail01.getcourse.ru, ns-mail03.getcourse.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gca.su (unsigned zone)

⏱️ Timing

Total: 1202ms | Queries: -

📄 Records

TypeCountSample Data
A5185.137.235.125, 185.137.235.77...
NS3ns-mail02.getcourse.ru, ns-mail03.getcourse.ru...
MX1mx.getcourse.ru (pri: 10)
TXT1v=spf1 include:deae274b6e2d6bd4d2afe7a75
SOA1ns-mail02.getcourse.ru hostmaster.gca.su

Analysis

Hierarchy

Among the subdomains of gca.su are mta-av-038.gca.su, mta-av-092.gca.su, mta-av-027.gca.su, mta-mtw033.gca.su, mta-mtw012.gca.su and a few other host names.

IP Addresses

gca.su directs to five IP numbers, including 185.137.235.77, 185.137.235.103, 185.137.235.125 and two others

center-praktik.ru, gcb.su, gca.to plus two other host names have IP numbers in common with gca.su.

Name Servers

gca.su is served by three name servers: ns-mail01.getcourse.ru, ns-mail02.getcourse.ru and ns-mail03.getcourse.ru.

Some name servers delegated to gca.su are also used by other domains, notably gcb.su and gca.to.

These name servers are routinely deployed together with the name servers ns-mail05.getcourse.ru.

ns-mail01.getcourse.ru has IP address 46.148.238.197, ns-mail02.getcourse.ru has IP address 46.148.238.142 and ns-mail03.getcourse.ru has IP address 46.148.238.227 — one address each.

Mail Servers

gca.su uses one mail server — mx.getcourse.ru.

The mail server setup of gca.su matches that of other domains such as haccp-auditonsulting.getcourse.ru, yanchevskaya.pro, monetizatormad.ru and two others.

At least some of the mail servers used by gca.su are shared with other domains: dressirovka.dog, khs.ru, mailserver.getcourse.ru and two others among them.

mx.getcourse.ru resolves to 212.41.14.129 and no other IP number.