coursemath.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`coursemath.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:37b6:2119:9eeb:840d^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:95da:2d88:73b2:572d^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		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:53a5:7e50:1f55:7b6f^{🇺🇸 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	13.218.211.18^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-218-211-18.compute-1.amazonaws.com`
		A	54.85.202.11^{🇺🇸 Amazon54.84.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-85-202-11.compute-1.amazonaws.com`
		A	54.91.62.235^{🇺🇸 Amazon54.90.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-91-62-235.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	54.160.161.196^{🇺🇸 Amazon54.160.0.0/14 EC2 IAD prefix}
			PTR	`ec2-54-160-161-196.compute-1.amazonaws.com`
		A	54.172.221.31^{🇺🇸 Amazon54.172.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-172-221-31.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:6c39:66f9:2f8:f70f^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:9aa7:e637:af25:907b^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:dbe4:7131:a2ea:398^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:2ded:5e32:1618:7e24^{🇺🇸 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:e18e:7239:d573:4e8f^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.80.58.200^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-80-58-200.compute-1.amazonaws.com`
		A	3.85.169.121^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-85-169-121.compute-1.amazonaws.com`
		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	54.91.35.214^{🇺🇸 Amazon54.90.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-91-35-214.compute-1.amazonaws.com`
		A	54.146.48.70^{🇺🇸 Amazon54.144.0.0/14 EC2 IAD NAT prefix}
			PTR	`ec2-54-146-48-70.compute-1.amazonaws.com`
TXT	`v=spf1 -all`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-08-17 #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=1786955484

Same first word

coursemath.com

Similar names

austrochem.at

austrochem.si

mathcourse.ru

mathsource.com

muchosarte.blogspot.mx

mousechart.com

chumastore.com

mathcourse.net

mathcourse.com

tourschema.nl

marcusteoh.com

austchrome.com.au

DNS History

15 records (7 active, 8 former)

○NSns1.dnslink.com2015-08-11 → 2016-03-31 · 4 obs

● 2015-08-11 22:17:38
● 2016-03-31 15:51:18
○ 2016-09-20 19:20:26
○ 2026-08-17 08:59:26

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

○ 2016-09-20 19:20:26
● 2026-03-03 14:14:14
● 2026-08-17 08:59:26

○NSns2.dnslink.com2015-08-11 → 2016-03-31 · 4 obs

● 2015-08-11 22:17:38
● 2016-03-31 15:51:18
○ 2016-09-20 19:20:26
○ 2026-08-17 08:59:26

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

○ 2016-09-20 19:20:26
● 2026-03-03 14:14:14
● 2026-08-17 08:59:26

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

○ 2016-09-20 19:20:26
● 2026-03-03 14:14:14
● 2026-08-17 08:59:26

○MXmail.b-io.co2015-08-11 → 2016-03-31 · 4 obs

● 2015-08-11 22:17:38
● 2016-03-31 15:51:18
○ 2016-09-20 19:20:26
○ 2026-08-17 08:59:26

●A13.223.25.842026-03-31 → 2026-08-17 · 3 obs

○ 2026-03-03 14:14:14
● 2026-03-31 05:08:36
● 2026-08-17 08:59:26

○A209.15.13.1342015-08-11 → 2016-03-31 · 4 obs

● 2015-08-11 22:17:38
● 2016-03-31 15:51:18
○ 2016-09-20 19:20:26
○ 2026-08-17 08:59:26

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-03-31 → 2026-08-17 · 3 obs

○ 2026-03-03 14:14:14
● 2026-03-31 05:08:36
● 2026-08-17 08:59:26

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

○ 2016-09-20 19:20:26
● 2026-03-03 14:14:14
○ 2026-03-31 05:08:36
○ 2026-08-17 08:59:26

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-03-31 → 2026-08-17 · 3 obs

○ 2026-03-03 14:14:14
● 2026-03-31 05:08:36
● 2026-08-17 08:59:26

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

○ 2016-09-20 19:20:26
● 2026-03-03 14:14:14
○ 2026-03-31 05:08:36
○ 2026-08-17 08:59:26

○A52.201.53.1662026-03-03 → 2026-03-03 · 4 obs

○ 2016-09-20 19:20:26
● 2026-03-03 14:14:14
○ 2026-03-31 05:08:36
○ 2026-08-17 08:59:26

●A54.243.117.1972026-03-31 → 2026-08-17 · 3 obs

○ 2026-03-03 14:14:14
● 2026-03-31 05:08:36
● 2026-08-17 08:59:26

○A98.82.42.1392026-03-03 → 2026-03-03 · 4 obs

○ 2016-09-20 19:20:26
● 2026-03-03 14:14:14
○ 2026-03-31 05:08:36
○ 2026-08-17 08:59:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
coursemath.com	nsg1.namebrightdns.com, nsg2.namebrightdns.com	25 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 coursemath.com (unsigned zone)

⏱️ Timing

Total: 311ms | 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: 25

Out-of-bailiwick: 25 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

IP Addresses

coursemath.com directs to four IP numbers, which are 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.

Two other host names, along with advancingyourlife.com, allkidsplay.com and bunnybusiness.com, also share IP numbers with coursemath.com.

Name Servers

coursemath.com carries NS records delegating to ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

There is at least partial name server overlap between coursemath.com and other domains — siwamei.com, ussrgame.com, mailserver.naturelli.com and two more among them.

The name servers ns2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com are often found in combination with these name servers.

DNS names with 13 IP addresses:

nsg1.namebrightdns.com resolves to 13.218.211.18, 54.85.202.11 and 54.91.62.235 among others, with 10 other IP addresses in total.

DNS names with 12 IP addresses:

nsg2.namebrightdns.com resolves to 3.80.58.200, 3.85.169.121 and 13.220.54.74 among others, with 9 other IP addresses in total.

Hostnames that map to three IP numbers:

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