course360.com - dns.ninja

`course360.com`

DNSSEC	⚠️ Not signed
A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
		PTR	`a904c694c05102f30.awsglobalaccelerator.com`
A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
NS	`ns3.afternic.com` ⭐
		A	97.74.98.65^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns3.afternic.com`
NS	`ns4.afternic.com`
		A	173.201.66.65^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns4.namefind.com`
TXT	`v=spf1 -all`
SOA	`ns3.afternic.com`dns@jomax.net 2025-10-01 #0

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1782371095

Same first word

course360.com

Similar names

source360.biz

source360.us

source360.com.br

source360.it

360source.com

360course.com

source360.com

source360.bg

source360.net

DNS History

11 records (4 active, 7 former)

○NSns1.afternic.com2015-06-25 → 2016-09-24 · 4 obs

● 2015-06-25 20:11:26
● 2016-09-24 01:43:48
○ 2017-05-29 10:01:02
○ 2026-06-25 07:06:22

○NSns1.parkingcrew.net2017-05-29 → 2017-05-29 · 4 obs

○ 2016-09-24 01:43:48
● 2017-05-29 10:01:02
○ 2026-02-21 21:03:14
○ 2026-06-25 07:06:22

○NSns2.parkingcrew.net2017-05-29 → 2017-05-29 · 4 obs

○ 2016-09-24 01:43:48
● 2017-05-29 10:01:02
○ 2026-02-21 21:03:14
○ 2026-06-25 07:06:22

●NSns3.afternic.com2026-02-21 → 2026-06-25 · 3 obs

○ 2017-05-29 10:01:02
● 2026-02-21 21:03:14
● 2026-06-25 07:06:22

●NSns4.afternic.com2026-02-21 → 2026-06-25 · 3 obs

○ 2017-05-29 10:01:02
● 2026-02-21 21:03:14
● 2026-06-25 07:06:22

○MX.2026-02-21 → 2026-06-25 · 2 obs

○ 2026-02-21 21:03:14
○ 2026-06-25 07:06:22

○MXmail.h-email.net2017-05-29 → 2017-05-29 · 3 obs

● 2017-05-29 10:01:02
○ 2026-02-21 21:03:14
○ 2026-06-25 07:06:22

●A13.248.169.482026-02-21 → 2026-06-25 · 3 obs

○ 2017-05-29 10:01:02
● 2026-02-21 21:03:14
● 2026-06-25 07:06:22

○A184.168.221.1042015-06-25 → 2016-09-24 · 4 obs

● 2015-06-25 20:11:26
● 2016-09-24 01:43:48
○ 2017-05-29 10:01:02
○ 2026-06-25 07:06:22

○A185.53.178.82017-05-29 → 2017-05-29 · 4 obs

○ 2016-09-24 01:43:48
● 2017-05-29 10:01:02
○ 2026-02-21 21:03:14
○ 2026-06-25 07:06:22

●A76.223.54.1462026-02-21 → 2026-06-25 · 3 obs

○ 2017-05-29 10:01:02
● 2026-02-21 21:03:14
● 2026-06-25 07:06:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net, m.gtld-servers.net...	-
course360.com	ns3.afternic.com, ns4.afternic.com	2 records

✅ Authoritative Response

Server:173.201.66.65

NS records: ns3.afternic.com, ns4.afternic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for course360.com (unsigned zone)

⏱️ Timing

Total: 993ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.248.169.48, 76.223.54.146`
NS	2	`ns3.afternic.com, ns4.afternic.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`ns3.afternic.com dns.jomax.net`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns3.afternic.com, ns4.afternic.com)

Analysis

IP Addresses

course360.com points to the IP addresses 13.248.169.48 and 76.223.54.146

Two other host names, along with mail.bookshell.com, chci.net and eoon.net, also share IP numbers with course360.com.

Name Servers

DNS delegation for course360.com points to two name servers: ns3.afternic.com and ns4.afternic.com.

course360.com shares its NS records with other domains, for example securedatasolutions.co, mediclose.com, unipo.com and two others.

At least some of course360.com's name servers are shared with other domains, for example bluemountaincreek.com, a-bz.com, yldp.com and two more.

These name servers tend to be used in conjunction with the name servers verification-frsgyqgb387khmr9jzuunx.ns101.verify.hn.

Each of ns3.afternic.com and ns4.afternic.com has one IP address: ns3.afternic.com uses 97.74.98.65 and ns4.afternic.com uses 173.201.66.65.