course-s.com - robtex.com

course-s.com

DNSSEC⚠️ Not signed
A13.248.169.48🇺🇸 Amazon13.248.160.0/20
PTRa904c694c05102f30.awsglobalaccelerator.com
A76.223.54.146🇺🇸 Amazon76.223.48.0/20
NSns1.afternic.com ⭐
A2603:5:2126::45🇺🇸 GODADDY-DNS2603:5:2120::/44
PTRns1.afternic.com
A97.74.98.69🇺🇸 GODADDY-DNS97.74.98.0/23
PTRns1.afternic.com
NSns2.afternic.com
A2603:5:2226::45🇺🇸 GODADDY-DNS2603:5:2220::/44
PTRns2.afternic.com
A173.201.66.69🇺🇸 GODADDY-DNS173.201.66.0/23
PTRns2.afternic.com
TXTv=spf1 -all
SOAns1.afternic.comdns@jomax.net 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=1780800946

Subdomains

mail2.course-s.com

Same first word

course-s.com

Similar names

e-cursos.org
su-score.com
e-cursos.es
s-source.com.sg
u-scores.com
e-cursos.com
e-cursos.biz
cours-es.com
s-source.store
e-cursos.net
cos-user.net
so-secur.com
e-cursos.com.br
s-source.com
s-course.com
serco-us.com

DNS History

15 records (4 active, 11 former)

20162017201820192020202120222023202420252026NSns1.afternic.comns2.afternic.comns1.parkingcrew.netns1.webhost-ing.comns2.parkingcrew.netns2.webhost-ing.comns3.webhost-ing.comns4.webhost-ing.comMXmail.h-email.netmx1.webhost-ing.commx2.webhost-ing.comA13.248.169.4876.223.54.146162.210.102.90185.53.179.12
●NSns1.afternic.com2026-05-15 → 2026-06-07 · 3 obs
○ 2016-12-14 10:15:12
● 2026-05-15 04:32:30
● 2026-06-07 03:17:30
○NSns1.parkingcrew.net2016-02-23 → 2016-02-23 · 4 obs
○ 2016-01-24 01:18:48
● 2016-02-23 12:04:20
○ 2016-06-19 06:40:32
○ 2026-06-07 03:17:30
○NSns1.webhost-ing.com2015-06-25 → 2016-12-14 · 7 obs
● 2015-06-25 12:59:38
● 2016-01-24 01:18:48
○ 2016-02-23 12:04:20
● 2016-06-19 06:40:32
● 2016-12-14 10:15:12
○ 2026-05-15 04:32:30
○ 2026-06-07 03:17:30
●NSns2.afternic.com2026-05-15 → 2026-06-07 · 3 obs
○ 2016-12-14 10:15:12
● 2026-05-15 04:32:30
● 2026-06-07 03:17:30
○NSns2.parkingcrew.net2016-02-23 → 2016-02-23 · 4 obs
○ 2016-01-24 01:18:48
● 2016-02-23 12:04:20
○ 2016-06-19 06:40:32
○ 2026-06-07 03:17:30
○NSns2.webhost-ing.com2015-06-25 → 2016-12-14 · 7 obs
● 2015-06-25 12:59:38
● 2016-01-24 01:18:48
○ 2016-02-23 12:04:20
● 2016-06-19 06:40:32
● 2016-12-14 10:15:12
○ 2026-05-15 04:32:30
○ 2026-06-07 03:17:30
○NSns3.webhost-ing.com2015-06-25 → 2016-12-14 · 7 obs
● 2015-06-25 12:59:38
● 2016-01-24 01:18:48
○ 2016-02-23 12:04:20
● 2016-06-19 06:40:32
● 2016-12-14 10:15:12
○ 2026-05-15 04:32:30
○ 2026-06-07 03:17:30
○NSns4.webhost-ing.com2015-06-25 → 2016-12-14 · 7 obs
● 2015-06-25 12:59:38
● 2016-01-24 01:18:48
○ 2016-02-23 12:04:20
● 2016-06-19 06:40:32
● 2016-12-14 10:15:12
○ 2026-05-15 04:32:30
○ 2026-06-07 03:17:30
○MXmail.h-email.net2016-02-23 → 2016-02-23 · 4 obs
○ 2016-01-24 01:18:48
● 2016-02-23 12:04:20
○ 2016-06-19 06:40:32
○ 2026-06-07 03:17:30
○MXmx1.webhost-ing.com2015-06-25 → 2016-12-14 · 7 obs
● 2015-06-25 12:59:38
● 2016-01-24 01:18:48
○ 2016-02-23 12:04:20
● 2016-06-19 06:40:32
● 2016-12-14 10:15:12
○ 2026-05-15 04:32:30
○ 2026-06-07 03:17:30
○MXmx2.webhost-ing.com2015-06-25 → 2016-12-14 · 7 obs
● 2015-06-25 12:59:38
● 2016-01-24 01:18:48
○ 2016-02-23 12:04:20
● 2016-06-19 06:40:32
● 2016-12-14 10:15:12
○ 2026-05-15 04:32:30
○ 2026-06-07 03:17:30
●A13.248.169.482026-05-15 → 2026-06-07 · 3 obs
○ 2016-12-14 10:15:12
● 2026-05-15 04:32:30
● 2026-06-07 03:17:30
○A162.210.102.902015-06-25 → 2016-12-14 · 7 obs
● 2015-06-25 12:59:38
● 2016-01-24 01:18:48
○ 2016-02-23 12:04:20
● 2016-06-19 06:40:32
● 2016-12-14 10:15:12
○ 2026-05-15 04:32:30
○ 2026-06-07 03:17:30
○A185.53.179.122016-02-23 → 2016-02-23 · 4 obs
○ 2016-01-24 01:18:48
● 2016-02-23 12:04:20
○ 2016-06-19 06:40:32
○ 2026-06-07 03:17:30
●A76.223.54.1462026-05-15 → 2026-06-07 · 3 obs
○ 2016-12-14 10:15:12
● 2026-05-15 04:32:30
● 2026-06-07 03:17:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net...-
course-s.comns1.afternic.com, ns2.afternic.com4 records

✅ Authoritative Response

Server:97.74.98.69

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for course-s.com (unsigned zone)

⏱️ Timing

Total: 181ms | Queries: -

📄 Records

TypeCountSample Data
A276.223.54.146, 13.248.169.48
NS2ns1.afternic.com, ns2.afternic.com
MX1. (pri: 0)
TXT1v=spf1 -all
SOA1ns1.afternic.com dns.jomax.net

📌 Glue Records Collected

Total: 4

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

Analysis

Hierarchy

course-s.com is a parent domain of mail2.course-s.com.

IP Addresses

course-s.com points to two IP numbers: 13.248.169.48 and 76.223.54.146.

seoplacement.com, clubneural.xyz, djamy.com plus two other host names have IP numbers in common with course-s.com.

Name Servers

DNS delegation for course-s.com points to two name servers: ns1.afternic.com and ns2.afternic.com.

The name server configuration of course-s.com is shared with other domains, for instance comenex.com, bangladesh.actress(0x787878)x.dhakawap.com, defibeginner.com and two others.

course-s.com shares at least some of its name servers with other domains, including wynnmarketing.com, vacancy.be, winefilters.com and two others.

ns1.afternic.com directs to 97.74.98.69 and 2603:5:2126::45. ns2.afternic.com directs to 173.201.66.69 and 2603:5:2226::45. Each host name carries two IP addresses.