bigcourses.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`bigcourses.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:169d:9815:c06b:e739^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:37b6:2119:9eeb:840d^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:c249:63b:8cfd:10d2^{🇺🇸 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	54.160.161.196^{🇺🇸 Amazon54.160.0.0/14 EC2 IAD prefix}
			PTR	`ec2-54-160-161-196.compute-1.amazonaws.com`
		A	54.172.49.194^{🇺🇸 Amazon54.172.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-172-49-194.compute-1.amazonaws.com`
		A	100.26.51.109^{🇺🇸 Amazon100.24.0.0/13 EC2 IAD prefix}
			PTR	`ec2-100-26-51-109.compute-1.amazonaws.com`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:dbe4:7131:a2ea:398^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:3e59:59bb:8dba:4dff^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:c515:9dd8:a859:e94a^{🇺🇸 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	34.239.46.233^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
			PTR	`ec2-34-239-46-233.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	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
TXT	`v=spf1 -all`
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=1786967934

Same first word

bigcourses.com

Similar names

segurosbic.com

bciseguros.com

bciseguros.cl

bicseguros.ao

bigsources.com

bigsources.in

bicseguros.com.br

DNS History

24 records (7 active, 17 former)

○NSns1.afternic.com2015-12-09 → 2015-12-09 · 4 obs

○ 2015-08-22 01:04:00
● 2015-12-09 11:15:14
○ 2016-03-16 02:20:32
○ 2026-08-17 12:14:54

○NSns1.fabulous.com2008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 06:59:50
○ 2015-08-22 01:04:00
○ 2026-08-17 12:14:54

●NSns1.namebrightdns.com2015-08-22 → 2026-08-17 · 5 obs

○ 2008-03-16 06:59:50
● 2015-08-22 01:04:00
○ 2015-12-09 11:15:14
● 2016-03-16 02:20:32
● 2026-08-17 12:14:54

○NSns2.fabulous.com2008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 06:59:50
○ 2015-08-22 01:04:00
○ 2026-08-17 12:14:54

○NSns2.namebrightdns.com2015-08-22 → 2017-04-21 · 8 obs

○ 2008-03-16 06:59:50
● 2015-08-22 01:04:00
○ 2015-12-09 11:15:14
○ 2016-03-16 02:20:32
● 2016-07-15 11:17:50
● 2017-04-21 02:55:32
○ 2026-08-17 12:14:52
○ 2026-08-17 12:14:54

●NSnsg1.namebrightdns.com2016-03-16 → 2026-08-17 · 6 obs

○ 2015-12-09 11:15:14
● 2016-03-16 02:20:32
○ 2016-07-15 11:17:50
○ 2017-04-21 02:55:32
● 2026-08-17 12:14:52
● 2026-08-17 12:14:54

●NSnsg2.namebrightdns.com2016-03-16 → 2026-08-17 · 6 obs

○ 2015-12-09 11:15:14
● 2016-03-16 02:20:32
○ 2016-07-15 11:17:50
○ 2017-04-21 02:55:32
● 2026-08-17 12:14:52
● 2026-08-17 12:14:54

○MXpostbox.fabulous.com2008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 06:59:50
○ 2015-08-22 01:04:00
○ 2026-08-17 12:14:54

○A107.23.198.2402016-07-15 → 2016-07-15 · 4 obs

○ 2016-03-16 02:20:32
● 2016-07-15 11:17:50
○ 2017-04-21 02:55:32
○ 2026-08-17 12:14:54

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

○ 2017-04-21 02:55:32
● 2026-08-17 12:14:52
● 2026-08-17 12:14:54

○A184.168.221.1042015-12-09 → 2015-12-09 · 4 obs

○ 2015-08-22 01:04:00
● 2015-12-09 11:15:14
○ 2016-03-16 02:20:32
○ 2026-08-17 12:14:54

○A216.34.131.1352008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 06:59:50
○ 2015-08-22 01:04:00
○ 2026-08-17 12:14:54

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

○ 2017-04-21 02:55:32
● 2026-08-17 12:14:52
● 2026-08-17 12:14:54

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

○ 2017-04-21 02:55:32
● 2026-08-17 12:14:52
● 2026-08-17 12:14:54

○A52.0.96.242016-03-16 → 2016-03-16 · 4 obs

○ 2015-12-09 11:15:14
● 2016-03-16 02:20:32
○ 2016-07-15 11:17:50
○ 2026-08-17 12:14:54

○A52.204.129.222017-04-21 → 2017-04-21 · 4 obs

○ 2016-07-15 11:17:50
● 2017-04-21 02:55:32
○ 2026-08-17 12:14:52
○ 2026-08-17 12:14:54

○A52.4.72.1372016-07-15 → 2016-07-15 · 4 obs

○ 2016-03-16 02:20:32
● 2016-07-15 11:17:50
○ 2017-04-21 02:55:32
○ 2026-08-17 12:14:54

○A52.71.117.992016-03-16 → 2016-03-16 · 4 obs

○ 2015-12-09 11:15:14
● 2016-03-16 02:20:32
○ 2016-07-15 11:17:50
○ 2026-08-17 12:14:54

○A54.174.31.2542015-08-22 → 2015-08-22 · 4 obs

○ 2008-03-16 06:59:50
● 2015-08-22 01:04:00
○ 2026-08-17 12:14:52
○ 2026-08-17 12:14:54

○A54.208.74.2152015-08-22 → 2015-08-22 · 4 obs

○ 2008-03-16 06:59:50
● 2015-08-22 01:04:00
○ 2026-08-17 12:14:52
○ 2026-08-17 12:14:54

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

○ 2017-04-21 02:55:32
● 2026-08-17 12:14:52
● 2026-08-17 12:14:54

○A54.85.127.702017-04-21 → 2017-04-21 · 4 obs

○ 2016-07-15 11:17:50
● 2017-04-21 02:55:32
○ 2026-08-17 12:14:52
○ 2026-08-17 12:14:54

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-08-22 → 2016-07-15 · 7 obs

○ 2008-03-16 06:59:50
● 2015-08-22 01:04:00
○ 2015-12-09 11:15:14
● 2016-03-16 02:20:32
● 2016-07-15 11:17:50
○ 2017-04-21 02:55:32
○ 2026-08-17 12:14:54

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-04-21 → 2017-04-21 · 4 obs

○ 2016-07-15 11:17:50
● 2017-04-21 02:55:32
○ 2026-08-17 12:14:52
○ 2026-08-17 12:14:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
bigcourses.com	nsg1.namebrightdns.com, nsg2.namebrightdns.com	16 records

✅ Authoritative Response

Server:54.85.202.11

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bigcourses.com (unsigned zone)

⏱️ Timing

Total: 199ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.223.25.84, 54.243.117.197`
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: 16

Out-of-bailiwick: 16 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

IP Addresses

bigcourses.com points to the 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.

Among the host names that share IP numbers with bigcourses.com are budclerk.com, timechance.com, snapgods.com and two others.

Name Servers

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

The name servers of bigcourses.com overlap at least partially with those of other domains — among them mail.hifion.com, kasusa.com, lumuku.com and two more.

The name servers ns2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com are commonly seen alongside these name servers.

Host names resolving to 8 IP numbers:

nsg1.namebrightdns.com resolves to 54.85.202.11, 54.160.161.196 and 54.172.49.194 among others, with 5 other IP addresses in total.

nsg2.namebrightdns.com resolves to 3.80.58.200, 34.239.46.233 and 54.91.35.214 among others, with 5 other IP addresses in total.

Hosts with three IP address records:

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