courseom.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`courseom.com`

DNSSEC	⚠️ Not signed
A	2600:1f18:4ae:c605:dd5d:b838:5816:d7fb^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	2600:1f18:4ae:c606:78d4:4260:db4e:aeee^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	13.223.25.84^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
A	54.243.117.197^{🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix}
NS	`ns1.namebrightdns.com` ⭐
		A	2600:1f18:683a:ae1a:c41d:b4cf:322b:2aa6^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.89.42.183^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-89-42-183.compute-1.amazonaws.com`
		A	100.58.124.42^{🇺🇸 Amazon100.48.0.0/12 EC2 IAD prefix}
			PTR	`ec2-100-58-124-42.compute-1.amazonaws.com`
NS	`nsg1.namebrightdns.com`
		A	2600:1f18:683a:ae1a:b09d:83f0:e6b6:f42b^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:f585:1574:e760:ea38^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:f05e:353f:7f15:996a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	54.85.202.11^{🇺🇸 Amazon54.84.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-85-202-11.compute-1.amazonaws.com`
		A	54.152.124.255^{🇺🇸 Amazon54.152.0.0/16 EC2 IAD prefix}
			PTR	`ec2-54-152-124-255.compute-1.amazonaws.com`
		A	54.198.24.7^{🇺🇸 Amazon54.198.0.0/16 EC2 IAD prefix}
			PTR	`ec2-54-198-24-7.compute-1.amazonaws.com`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:839a:1073:8e76:8236^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:4aaf:6a4d:9d6f:d35b^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:53a5:7e50:1f55:7b6f^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	13.220.54.74^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-220-54-74.compute-1.amazonaws.com`
		A	13.220.113.110^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-220-113-110.compute-1.amazonaws.com`
		A	34.230.11.24^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
			PTR	`ec2-34-230-11-24.compute-1.amazonaws.com`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
TXT	`v=spf1 -all`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-08-16 #1

`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=1786940619

⚠️ On DNS blocklist: tif

Subdomains

mail.courseom.com

Same first word

courseom.com

Similar names

DNS History

15 records (7 active, 8 former)

●NSns1.namebrightdns.com2026-03-26 → 2026-08-17 · 3 obs

○ 2017-08-10 09:11:54
● 2026-03-26 17:50:58
● 2026-08-17 04:40:14

○NSns75.websitewelcome.com2017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 09:11:54
○ 2026-03-26 17:50:58
○ 2026-08-17 04:40:14

○NSns76.websitewelcome.com2017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 09:11:54
○ 2026-03-26 17:50:58
○ 2026-08-17 04:40:14

●NSnsg1.namebrightdns.com2026-03-26 → 2026-08-17 · 3 obs

○ 2017-08-10 09:11:54
● 2026-03-26 17:50:58
● 2026-08-17 04:40:14

●NSnsg2.namebrightdns.com2026-03-26 → 2026-08-17 · 3 obs

○ 2017-08-10 09:11:54
● 2026-03-26 17:50:58
● 2026-08-17 04:40:14

○MXmail.courseom.com2017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 09:11:54
○ 2026-03-26 17:50:58
○ 2026-08-17 04:40:14

●A13.223.25.842026-03-26 → 2026-08-17 · 3 obs

○ 2017-08-10 09:11:54
● 2026-03-26 17:50:58
● 2026-08-17 04:40:14

○A192.185.77.1892017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 09:11:54
○ 2026-03-26 17:50:58
○ 2026-08-17 04:40:14

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-03-26 → 2026-08-17 · 3 obs

○ 2017-08-10 09:11:54
● 2026-03-26 17:50:58
● 2026-08-17 04:40:14

○A2600:1f18:4ae:c605:f094:2a0a:4985:526e2026-03-26 → 2026-08-17 · 2 obs

○ 2026-03-26 17:50:58
○ 2026-08-17 04:40:14

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-03-26 → 2026-08-17 · 3 obs

○ 2017-08-10 09:11:54
● 2026-03-26 17:50:58
● 2026-08-17 04:40:14

○A2600:1f18:4ae:c606:def:b9d9:eb9e:77662026-03-26 → 2026-08-17 · 2 obs

○ 2026-03-26 17:50:58
○ 2026-08-17 04:40:14

○A52.201.53.1662026-03-26 → 2026-08-17 · 2 obs

○ 2026-03-26 17:50:58
○ 2026-08-17 04:40:14

●A54.243.117.1972026-03-26 → 2026-08-17 · 3 obs

○ 2017-08-10 09:11:54
● 2026-03-26 17:50:58
● 2026-08-17 04:40:14

○A98.82.42.1392026-03-26 → 2026-08-17 · 2 obs

○ 2026-03-26 17:50:58
○ 2026-08-17 04:40:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net...	-
courseom.com	nsg1.namebrightdns.com, nsg2.namebrightdns.com	12 records

✅ Authoritative Response

Server:54.152.124.255

NS records: nsg1.namebrightdns.com, nsg2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for courseom.com (unsigned zone)

⏱️ Timing

Total: 132ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.223.25.84, 54.243.117.197`
AAAA	2	`2600:1f18:4ae:c606:78d4:4260:db4e:aeee, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb`
NS	2	`nsg1.namebrightdns.com, nsg2.namebrightdns.com`
TXT	2	`afternic-verification-G9G3tM8T8EwEizzPzj, v=spf1 -all`
SOA	1	`ns1.namebrightdns.com dns.namebright.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

Hierarchy

courseom.com serves as the parent of mail.courseom.com.

IP Addresses

courseom.com resolves to four IP addresses: 13.223.25.84, 54.243.117.197, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb and 2600:1f18:4ae:c606:78d4:4260:db4e:aeee.

passioninvest.com, kr.lsplab.com, edgeofsanity.com plus two other host names have IP numbers in common with courseom.com.

Name Servers

The authoritative name servers for courseom.com are ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com — three in total.

courseom.com has at least partial name server overlap with other domains, such as greatgpt.com, 6cb9a.jsdcoffee.com, www.drynest.com and two others.

These name servers tend to appear together with the name servers ns2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com.

Hosts with 6 IP addresses each:

Hostname nsg1.namebrightdns.com directs to 54.85.202.11, 54.152.124.255 and 54.198.24.7 along with 3 other IP addresses.

Hostname nsg2.namebrightdns.com directs to 13.220.54.74, 13.220.113.110 and 34.230.11.24 along with 3 other IP addresses.

Host names carrying three IP numbers:

The hostname ns1.namebrightdns.com directs to 3.89.42.183, 100.58.124.42 and 2600:1f18:683a:ae1a:c41d:b4cf:322b:2aa6.