coursehost.com - robtex.com

coursehost.com

DNSSEC⚠️ Not signed
NSns-1168.awsdns-18.org ⭐
A2600:9000:5304:9000::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront
PTRns-1168.awsdns-18.org
A205.251.196.144🇺🇸 Amazon205.251.196.0/24 prefix
PTRns-1168.awsdns-18.org
NSns-1566.awsdns-03.co.uk
A2600:9000:5306:1e00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront
PTRns-1566.awsdns-03.co.uk
A205.251.198.30🇺🇸 Amazon205.251.198.0/24 prefix
PTRns-1566.awsdns-03.co.uk
NSns-432.awsdns-54.com
A2600:9000:5301:b000::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-432.awsdns-54.com
A205.251.193.176🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-432.awsdns-54.com
NSns-890.awsdns-47.net
A2600:9000:5303:7a00::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront
PTRns-890.awsdns-47.net
A205.251.195.122🇺🇸 Amazon205.251.195.0/24 prefix
PTRns-890.awsdns-47.net
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c03::1a🇺🇸 Google2607:f8b0::/32
PTRdy-in-f26.1e100.net
A74.125.137.26🇺🇸 Google74.125.137.0/24
PTRdy-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4023:2801::1b🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f27.1e100.net
A192.178.128.26🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1b🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f27.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXaspmx2.googlemail.com(10)
A2607:f8b0:4023:2801::1a🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f26.1e100.net
A192.178.128.26🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f26.1e100.net
MXaspmx3.googlemail.com(10)
A2a00:1450:4013:c1e::1a🇳🇱 Google2a00:1450:4013::/48
PTRyugrqzs-in-f26.1e100.net
A192.178.213.27🇺🇸 Google192.178.213.0/24
PTRyugrqzs-in-f27.1e100.net
MXaspmx4.googlemail.com(10)
A2607:f8b0:4023:1015::1b🇺🇸 Google2607:f8b0::/32
PTRyudfwta-in-f27.1e100.net
A172.253.135.27🇺🇸 Google172.253.135.0/24
PTRyudfwta-in-f27.1e100.net
MXaspmx5.googlemail.com(10)
A2a00:1450:400c:c00::1a🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f26.1e100.net
PTRws-in-x1a.1e100.net
A173.194.76.27🇺🇸 Google173.194.76.0/24
PTRws-in-f27.1e100.net
SOAns-1168.awsdns-18.orgawsdns-hostmaster@amazon.com serial=1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1776943917

Subdomains

custom.coursehost.com
kgbtraining.coursehost.com
s84.coursehost.com
yesbank.coursehost.com
gvf.coursehost.com
itto.coursehost.com
s85.coursehost.com
hometownhealthonline.coursehost.com
mexicoport.coursehost.com
www.coursehost.com

Same first word

coursehost.com
coursehost.co
coursehost.net

Similar names

hotcourses.co.id
hotcourses.org
hotcourses.ae
hotcourses.ru
sourcehost.co.uk
hotcourses.com.mx
hotcourses.com.au
sourcehost.net.br
hotcourses.co.uk
hotcourses.co.in
horsescout.de
sourcehost.de
courtshoes.com
hotcourses.us
sourceshot.com
sourcehost.nz
hotcourses.com.br
hotcourses.in.th
hotcourses.com
hostcourse.com
hotsources.com
scouthorse.com
horsescout.com
sourcehost.no-ip.org
hotcourses.net
sourcehost.no-ip.biz
hotcourses.co.za
hotcourses.vn
hotcourses.in
sourcehost.org
hostsource.com
hotcourses.com.my

DNS History

17 records (11 active, 6 former)

20162017201820192020202120222023202420252026NSns-1168.awsdns-18.orgns-1566.awsdns-03.co.ukns-432.awsdns-54.comns-890.awsdns-47.netMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.comA54.214.33.654.214.34.8854.214.47.6954.214.9.12554.244.116.3654.244.224.246
●NSns-1168.awsdns-18.org2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
●NSns-1566.awsdns-03.co.uk2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
●NSns-432.awsdns-54.com2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
●NSns-890.awsdns-47.net2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
●MXalt1.aspmx.l.google.com2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
●MXalt2.aspmx.l.google.com2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
●MXaspmx.l.google.com2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
●MXaspmx2.googlemail.com2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
●MXaspmx3.googlemail.com2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
●MXaspmx4.googlemail.com2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
●MXaspmx5.googlemail.com2015-06-20 → 2026-04-23 · 2 obs
● 2015-06-20 10:55:26
● 2026-04-23 11:37:14
○A54.214.33.62016-01-10 → 2016-01-22 · 5 obs
○ 2015-11-20 01:57:50
● 2016-01-10 17:45:26
● 2016-01-22 21:37:48
○ 2016-08-12 02:06:14
○ 2026-04-23 11:37:14
○A54.214.34.882016-08-12 → 2016-08-12 · 4 obs
○ 2016-01-22 21:37:48
● 2016-08-12 02:06:14
○ 2026-02-20 09:14:38
○ 2026-04-23 11:37:14
○A54.214.47.692015-11-20 → 2015-11-20 · 4 obs
○ 2015-10-12 10:43:46
● 2015-11-20 01:57:50
○ 2016-01-10 17:45:26
○ 2026-04-23 11:37:14
○A54.214.9.1252015-10-12 → 2015-10-12 · 4 obs
○ 2015-06-20 10:55:26
● 2015-10-12 10:43:46
○ 2015-11-20 01:57:50
○ 2026-04-23 11:37:14
○A54.244.116.362015-06-20 → 2015-06-20 · 3 obs
● 2015-06-20 10:55:26
○ 2026-02-20 09:14:38
○ 2026-04-23 11:37:14
○A54.244.224.2462015-06-20 → 2015-06-20 · 3 obs
● 2015-06-20 10:55:26
○ 2015-10-12 10:43:46
○ 2026-04-23 11:37:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net...-
coursehost.comns-432.awsdns-54.com, ns-890.awsdns-47.net, ns-1566.awsdns-03.co.uk, ns-1168.awsdns-18.org1 record

✅ Authoritative Response

Server:205.251.193.176

NS records: ns-432.awsdns-54.com, ns-890.awsdns-47.net, ns-1566.awsdns-03.co.uk, ns-1168.awsdns-18.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursehost.com (unsigned zone)

⏱️ Timing

Total: 520ms | Queries: -

📄 Records

TypeCountSample Data
NS4ns-1168.awsdns-18.org, ns-1566.awsdns-03.co.uk...
MX7aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...
SOA1ns-1168.awsdns-18.org awsdns-hostmaster.

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-432.awsdns-54.com)

Analysis

Hierarchy

coursehost.com is a parent of custom.coursehost.com, kgbtraining.coursehost.com, s84.coursehost.com, yesbank.coursehost.com, gvf.coursehost.com and a few other host names.

Name Servers

coursehost.com is delegated to four name servers: ns-432.awsdns-54.com, ns-890.awsdns-47.net, ns-1168.awsdns-18.org and ns-1566.awsdns-03.co.uk.

coursehost.com at least partially shares name servers with other domains, for example nachobenbitte.com, go-simply.com, betcli.it, xerevo.com and sabio.cloud.

Host names with two IP numbers:

ns-432.awsdns-54.com points to: 2600:9000:5301:b000::1 and 205.251.193.176

ns-890.awsdns-47.net points to: 2600:9000:5303:7a00::1 and 205.251.195.122

ns-1168.awsdns-18.org points to: 2600:9000:5304:9000::1 and 205.251.196.144

ns-1566.awsdns-03.co.uk points to: 2600:9000:5306:1e00::1 and 205.251.198.30

Mail Servers

Seven mail servers handle coursehost.com: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com, aspmx5.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

coursehost.com shares at least partially some mail servers with other domains, for instance ns500699.ns500699.ns500734.ns500693.ns500699.ns500699.ns500588.ns500699.ns500683.ns500632.ns500612.ns500612.ns500612.ns500588.ns500588.dtrkdll.com, efeaydal.com, ns500758.ns500698.ns500758.ns500698.ns500758.ns500735.ns500735.ns500698.ns500735.ns500708.ns500576.ns500698.ns500576.ns500652.ns500652.ns500619.trackreceptor.com, ns500758.ns500758.ns500759.ns500698.ns500758.ns500698.ns500736.ns500698.ns500698.ns500698.ns500735.ns500708.ns500698.ns500619.ns500576.ns500619.ns500619.trackreceptor.com and ns500671.ns500671.ns500742.ns500671.ns500731.ns500671.ns500754.ns500754.ns500704.ns500688.ns500291.ns500666.ns500649.ns500153.tenderladiesbz.com.

These mail servers are often used with alt4.aspmx.l.google.com and alt3.aspmx.l.google.com.

Hosts with two IP numbers:

Host aspmx2.googlemail.com points to 2607:f8b0:4023:2801::1a and 192.178.128.26

Host aspmx3.googlemail.com points to 2a00:1450:4013:c1e::1a and 192.178.213.27

Host aspmx4.googlemail.com points to 2607:f8b0:4023:1015::1b and 172.253.135.27

Host aspmx5.googlemail.com points to 2a00:1450:400c:c00::1a and 173.194.76.27

Host aspmx.l.google.com points to 2607:f8b0:4023:c03::1a and 74.125.137.26

Host alt1.aspmx.l.google.com points to 2607:f8b0:4023:2801::1b and 192.178.128.26

Host alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1b and 172.253.116.26

Hosts that point to 192.178.128.26: aspmx2.googlemail.com and alt1.aspmx.l.google.com