coursekernel.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`coursekernel.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:6bbe:79b7:4add:a37e^{🇺🇸 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:9e7f:fa70:dfca:429f^{🇺🇸 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	34.202.9.164^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
			PTR	`ec2-34-202-9-164.compute-1.amazonaws.com`
		A	35.172.180.76^{🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix}
			PTR	`ec2-35-172-180-76.compute-1.amazonaws.com`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:4050:f99a:8158:5afa^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:2e57:bd68:2607:d5ab^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:8b4b:239:2d02:4d76^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.80.243.117^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-80-243-117.compute-1.amazonaws.com`
		A	32.199.157.129
			PTR	`ec2-32-199-157-129.compute-1.amazonaws.com`
		A	184.72.158.182^{🇺🇸 Amazon184.72.128.0/17 IAD prefix}
			PTR	`ec2-184-72-158-182.compute-1.amazonaws.com`
TXT	`v=spf1 -all`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-09-08 #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=1788904143

Same first word

coursekernel.cyou

coursekernel.com

Similar names

sourcekernel.com

kernelsource.com

kernelsource.org

Previous names

Next names

DNS History

24 records (7 active, 17 former)

○NSns-cloud-d1.googledomains.com2015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○NSns-cloud-d2.googledomains.com2015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○NSns-cloud-d3.googledomains.com2015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○NSns-cloud-d4.googledomains.com2015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

●NSns1.namebrightdns.com2026-08-31 → 2026-09-08 · 3 obs

○ 2017-03-31 10:06:20
● 2026-08-31 14:11:16
● 2026-09-08 22:04:10

●NSnsg1.namebrightdns.com2026-08-31 → 2026-09-08 · 3 obs

○ 2017-03-31 10:06:20
● 2026-08-31 14:11:16
● 2026-09-08 22:04:10

●NSnsg2.namebrightdns.com2026-08-31 → 2026-09-08 · 3 obs

○ 2017-03-31 10:06:20
● 2026-08-31 14:11:16
● 2026-09-08 22:04:10

○MXalt1.gmr-smtp-in.l.google.com2015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○MXalt2.gmr-smtp-in.l.google.com2015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○MXalt3.gmr-smtp-in.l.google.com2015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○MXalt4.gmr-smtp-in.l.google.com2015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○MXgmr-smtp-in.l.google.com2015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

●A13.223.25.842026-08-31 → 2026-09-08 · 3 obs

○ 2017-03-31 10:06:20
● 2026-08-31 14:11:16
● 2026-09-08 22:04:10

○A2001:4860:4802:32::152015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○A2001:4860:4802:34::152015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○A2001:4860:4802:36::152015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○A2001:4860:4802:38::152015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○A216.239.32.212015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○A216.239.34.212015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○A216.239.36.212015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

○A216.239.38.212015-07-22 → 2017-03-31 · 4 obs

● 2015-07-22 11:58:52
● 2017-03-31 10:06:20
○ 2026-08-31 14:11:16
○ 2026-09-08 22:04:10

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-08-31 → 2026-09-08 · 3 obs

○ 2017-03-31 10:06:20
● 2026-08-31 14:11:16
● 2026-09-08 22:04:10

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-08-31 → 2026-09-08 · 3 obs

○ 2017-03-31 10:06:20
● 2026-08-31 14:11:16
● 2026-09-08 22:04:10

●A54.243.117.1972026-08-31 → 2026-09-08 · 3 obs

○ 2017-03-31 10:06:20
● 2026-08-31 14:11:16
● 2026-09-08 22:04:10

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:3.80.58.200

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursekernel.com (unsigned zone)

⏱️ Timing

Total: 396ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`54.243.117.197, 13.223.25.84`
AAAA	2	`2600:1f18:4ae:c605:dd5d:b838:5816:d7fb, 2600:1f18:4ae:c606:78d4:4260:db4e:aeee`
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

IP Addresses

coursekernel.com has 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.

fanligang.com, cortextechnology.com, chat.quaybar.com and two other host names share IP numbers with coursekernel.com.

Name Servers

Three name servers are authoritative for coursekernel.com: ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

coursekernel.com shares at least some of its name servers with other domains, including temperedsteelinc.com, projectobsession.com, kitchenshield.com and two others.

These name servers are frequently paired with the name servers ns2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com.

Hostnames that resolve to 6 IP addresses:

nsg1.namebrightdns.com carries IP addresses 3.80.58.200, 34.202.9.164 and 35.172.180.76, with 3 other addresses beyond those.

nsg2.namebrightdns.com carries IP addresses 3.80.243.117, 32.199.157.129 and 184.72.158.182, with 3 other addresses beyond those.

Hostnames that resolve to three IP addresses:

ns1.namebrightdns.com resolves to three addresses: 3.89.42.183, 100.58.124.42 and 2600:1f18:683a:ae1a:c41d:b4cf:322b:2aa6.