coredu.com - dns.ninja

`coredu.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:6900:d1bd:7672:d0ca^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:532:7c1e:9c2f:d0ac^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	54.163.9.173^{🇺🇸 Amazon54.160.0.0/14 EC2 IAD prefix}
			PTR	`ec2-54-163-9-173.compute-1.amazonaws.com`
		A	98.93.116.1^{🇺🇸 Amazon98.88.0.0/13 EC2 IAD prefix}
			PTR	`ec2-98-93-116-1.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	2600:1f18:683a:ae1a:bbc8:24d6:947f:1e99^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:6fa6:bf7e:9de7:5e92^{🇺🇸 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	54.225.33.252^{🇺🇸 Amazon54.224.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-225-33-252.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`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1b:ac3c:fcfb:521d:2fd5^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:f6ec:2543:1b2e:f83c^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.90.140.102^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-90-140-102.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	54.225.31.228^{🇺🇸 Amazon54.224.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-225-31-228.compute-1.amazonaws.com`
TXT	`v=spf1 -all`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-07-26 #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=1785073192

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DNS History

16 records (7 active, 9 former)

●NSns1.namebrightdns.com2015-08-16 → 2026-07-26 · 4 obs

● 2015-08-16 17:00:02
○ 2015-12-10 18:40:06
● 2016-07-12 01:02:38
● 2026-07-26 14:05:02

○NSns2.namebrightdns.com2015-08-16 → 2017-09-05 · 6 obs

● 2015-08-16 17:00:02
○ 2015-12-10 18:40:06
● 2016-07-12 01:02:38
● 2017-09-05 06:47:54
○ 2026-06-04 09:53:04
○ 2026-07-26 14:05:02

●NSnsg1.namebrightdns.com2015-12-10 → 2026-07-26 · 6 obs

○ 2015-08-16 17:00:02
● 2015-12-10 18:40:06
○ 2016-07-12 01:02:38
○ 2017-09-05 06:47:54
● 2026-06-04 09:53:04
● 2026-07-26 14:05:02

●NSnsg2.namebrightdns.com2015-12-10 → 2026-07-26 · 6 obs

○ 2015-08-16 17:00:02
● 2015-12-10 18:40:06
○ 2016-07-12 01:02:38
○ 2017-09-05 06:47:54
● 2026-06-04 09:53:04
● 2026-07-26 14:05:02

○A107.23.160.2182015-12-10 → 2015-12-10 · 4 obs

○ 2015-08-16 17:00:02
● 2015-12-10 18:40:06
○ 2016-07-12 01:02:38
○ 2026-07-26 14:05:02

○A107.23.198.2402016-07-12 → 2016-07-12 · 4 obs

○ 2015-12-10 18:40:06
● 2016-07-12 01:02:38
○ 2017-09-05 06:47:54
○ 2026-07-26 14:05:02

●A13.223.25.842026-06-04 → 2026-07-26 · 3 obs

○ 2017-09-05 06:47:54
● 2026-06-04 09:53:04
● 2026-07-26 14:05:02

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-06-04 → 2026-07-26 · 3 obs

○ 2017-09-05 06:47:54
● 2026-06-04 09:53:04
● 2026-07-26 14:05:02

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-06-04 → 2026-07-26 · 3 obs

○ 2017-09-05 06:47:54
● 2026-06-04 09:53:04
● 2026-07-26 14:05:02

○A52.4.72.1372016-07-12 → 2016-07-12 · 4 obs

○ 2015-12-10 18:40:06
● 2016-07-12 01:02:38
○ 2017-09-05 06:47:54
○ 2026-07-26 14:05:02

○A54.174.31.2542015-08-16 → 2015-08-16 · 3 obs

● 2015-08-16 17:00:02
○ 2017-09-05 06:47:54
○ 2026-07-26 14:05:02

○A54.208.74.2152015-08-16 → 2015-08-16 · 3 obs

● 2015-08-16 17:00:02
○ 2017-09-05 06:47:54
○ 2026-07-26 14:05:02

○A54.209.90.812015-12-10 → 2015-12-10 · 4 obs

○ 2015-08-16 17:00:02
● 2015-12-10 18:40:06
○ 2016-07-12 01:02:38
○ 2026-07-26 14:05:02

●A54.243.117.1972026-06-04 → 2026-07-26 · 3 obs

○ 2017-09-05 06:47:54
● 2026-06-04 09:53:04
● 2026-07-26 14:05:02

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-08-16 → 2016-07-12 · 4 obs

● 2015-08-16 17:00:02
● 2016-07-12 01:02:38
○ 2017-09-05 06:47:54
○ 2026-07-26 14:05:02

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-09-05 → 2017-09-05 · 5 obs

○ 2016-07-12 01:02:38
● 2017-09-05 06:47:54
● 2017-09-05 06:48:02
○ 2026-06-04 09:53:04
○ 2026-07-26 14:05:02

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:54.234.103.190

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coredu.com (unsigned zone)

⏱️ Timing

Total: 208ms | 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	`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

coredu.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.

Additional host names — bloowa.com, pqgames.com, www.nailsjournal.com and two others — share IP numbers with coredu.com.

Name Servers

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

coredu.com has at least partial name server overlap with other domains, such as 05.davidallgroup.com, bbmam.com, mail.alchemycapitalpartners.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.

Host names with 7 IP numbers:

Hostname nsg1.namebrightdns.com directs to 54.162.235.48, 54.225.33.252 and 54.234.103.190 along with 4 other IP addresses.

Host names that resolve to five IP addresses:

nsg2.namebrightdns.com points to 3.90.140.102, 54.221.37.2, 54.225.31.228 and two other IP addresses.

Host names resolving to four IP addresses:

ns1.namebrightdns.com has four IP addresses: 54.163.9.173, 98.93.116.1, 2600:1f18:683a:ae1a:6900:d1bd:7672:d0ca and 2600:1f18:683a:ae1b:532:7c1e:9c2f:d0ac.