reactcourse.com - dns.ninja

`reactcourse.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:303c:9b15:3db3:a8a2^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:9b5a:7d38:2d23:6714^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.93.61.140^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-93-61-140.compute-1.amazonaws.com`
		A	54.234.103.190^{🇺🇸 Amazon54.234.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-234-103-190.compute-1.amazonaws.com`
		A	174.129.117.232^{🇺🇸 Amazon174.129.0.0/16 Execution Services}
			PTR	`ec2-174-129-117-232.compute-1.amazonaws.com`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:1ff8:84b4:19de:5ca6^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:18c:37a5:651d:7bdc^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:ac3c:fcfb:521d:2fd5^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:ed3d:ef92:9331:4834^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	54.162.235.48^{🇺🇸 Amazon54.160.0.0/14 EC2 IAD prefix}
			PTR	`ec2-54-162-235-48.compute-1.amazonaws.com`
		A	54.221.37.2^{🇺🇸 Amazon54.221.0.0/16 EC2 IAD prefix}
			PTR	`ec2-54-221-37-2.compute-1.amazonaws.com`
		A	54.235.53.129^{🇺🇸 Amazon54.234.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-235-53-129.compute-1.amazonaws.com`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
TXT	`v=spf1 -all`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-08-05 #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=1785933239

Same first word

reactcourse.com

Similar names

DNS History

12 records (7 active, 5 former)

○NSns-cloud-b1.googledomains.com2016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 02:05:14
○ 2020-01-31 01:37:40
○ 2026-08-05 12:43:08

○NSns-cloud-b2.googledomains.com2016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 02:05:14
○ 2020-01-31 01:37:40
○ 2026-08-05 12:43:08

○NSns-cloud-b3.googledomains.com2016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 02:05:14
○ 2020-01-31 01:37:40
○ 2026-08-05 12:43:08

○NSns-cloud-b4.googledomains.com2016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 02:05:14
○ 2020-01-31 01:37:40
○ 2026-08-05 12:43:08

●NSns1.namebrightdns.com2026-03-24 → 2026-08-05 · 3 obs

○ 2020-01-31 01:37:40
● 2026-03-24 21:44:54
● 2026-08-05 12:43:08

●NSnsg1.namebrightdns.com2020-01-31 → 2026-08-05 · 3 obs

○ 2016-12-15 02:05:14
● 2020-01-31 01:37:40
● 2026-08-05 12:43:08

●NSnsg2.namebrightdns.com2020-01-31 → 2026-08-05 · 3 obs

○ 2016-12-15 02:05:14
● 2020-01-31 01:37:40
● 2026-08-05 12:43:08

●A13.223.25.842026-03-24 → 2026-08-05 · 2 obs

● 2026-03-24 21:44:54
● 2026-08-05 12:43:08

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-03-24 → 2026-08-05 · 2 obs

● 2026-03-24 21:44:54
● 2026-08-05 12:43:08

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-03-24 → 2026-08-05 · 2 obs

● 2026-03-24 21:44:54
● 2026-08-05 12:43:08

●A54.243.117.1972026-03-24 → 2026-08-05 · 2 obs

● 2026-03-24 21:44:54
● 2026-08-05 12:43:08

○CNAMEhdredirect-lb5-1afb6e2973825a56.elb.us-east-1.amazonaws.com2020-01-31 → 2020-01-31 · 3 obs

● 2020-01-31 01:37:40
○ 2026-03-24 21:44:54
○ 2026-08-05 12:43:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
reactcourse.com	nsg1.namebrightdns.com, nsg2.namebrightdns.com	12 records

✅ Authoritative Response

Server:174.129.117.232

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for reactcourse.com (unsigned zone)

⏱️ Timing

Total: 394ms | 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	`nsg2.namebrightdns.com, nsg1.namebrightdns.com`
TXT	2	`v=spf1 -all, afternic-verification-G9G3tM8T8EwEizzPzj`
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

reactcourse.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.

Additional host names — richphoenix.com, baoyipin888.com, updatedhealthcare.com and two others — share IP numbers with reactcourse.com.

Name Servers

reactcourse.com is served by three name servers: ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

reactcourse.com shares at least some of its name servers with other domains, including intothebook.com, inspiredingredients.com, teelar.com and two others.

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

Host names with 7 IP numbers:

nsg2.namebrightdns.com maps to 54.162.235.48, 54.221.37.2, 54.235.53.129 and 4 additional IP addresses.

Host names that resolve to five IP addresses:

nsg1.namebrightdns.com points to 3.93.61.140, 54.234.103.190, 174.129.117.232 and two other IP addresses.

Host names with three IP numbers:

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