`harcourtsgroup.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:ab0e:fd0:be06:9b6a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:9989:7d37:6cd7:be^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:9d25:c3f4:6822:2e6a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.89.37.161^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-89-37-161.compute-1.amazonaws.com`
		A	54.197.218.14^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
			PTR	`ec2-54-197-218-14.compute-1.amazonaws.com`
		A	107.23.118.193^{🇺🇸 Amazon107.23.0.0/17 EC2 IAD prefix}
			PTR	`ec2-107-23-118-193.compute-1.amazonaws.com`
NS	`nsg1.namebrightdns.com`
		A	2600:1f18:683a:ae1a:75fb:22eb:172f:aec9^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:c3af:86a5:e8eb:aca2^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:e3c3:c544:8988:662a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:2e10:c73d:db4b:3b22^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:31ad:de47:fd30:d88c^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	54.162.229.29^{🇺🇸 Amazon54.160.0.0/14 EC2 IAD prefix}
			PTR	`ec2-54-162-229-29.compute-1.amazonaws.com`
		A	54.167.103.108^{🇺🇸 Amazon54.167.0.0/17}
			PTR	`ec2-54-167-103-108.compute-1.amazonaws.com`
		A	54.227.41.40^{🇺🇸 Amazon54.226.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-227-41-40.compute-1.amazonaws.com`
		A	98.86.241.238^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
			PTR	`ec2-98-86-241-238.compute-1.amazonaws.com`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:cd73:5cb2:dd14:e8a4^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:1662:eae1:cb5a:697f^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:f129:ff8d:3d0c:5bce^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.85.213.1^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-85-213-1.compute-1.amazonaws.com`
		A	3.89.245.155^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-89-245-155.compute-1.amazonaws.com`
		A	23.20.203.129^{🇺🇸 Amazon23.20.0.0/15 EC2 IAD prefix}
			PTR	`ec2-23-20-203-129.compute-1.amazonaws.com`
		A	98.80.252.22^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
			PTR	`ec2-98-80-252-22.compute-1.amazonaws.com`
TXT	`v=spf1 -all`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-04-27 #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=1777322186

Same first word

harcourtsgroup.com

DNS History

16 records (7 active, 9 former)

○NSns.uniregistry.net2016-12-13 → 2017-06-26 · 4 obs

● 2016-12-13 08:37:46
● 2017-06-26 22:14:32
○ 2026-04-04 02:02:38
○ 2026-04-27 21:06:26

●NSns1.namebrightdns.com2026-04-04 → 2026-04-27 · 3 obs

○ 2017-06-26 22:14:32
● 2026-04-04 02:02:38
● 2026-04-27 21:06:26

○NSns1.uniregistry-dns.com2016-12-13 → 2017-06-26 · 4 obs

● 2016-12-13 08:37:46
● 2017-06-26 22:14:32
○ 2026-04-04 02:02:38
○ 2026-04-27 21:06:26

○NSns1.uniregistry-dns.net2016-12-13 → 2017-06-26 · 4 obs

● 2016-12-13 08:37:46
● 2017-06-26 22:14:32
○ 2026-04-04 02:02:38
○ 2026-04-27 21:06:26

○NSns2.uniregistry-dns.com2016-12-13 → 2017-06-26 · 4 obs

● 2016-12-13 08:37:46
● 2017-06-26 22:14:32
○ 2026-04-04 02:02:38
○ 2026-04-27 21:06:26

○NSns2.uniregistry-dns.net2016-12-13 → 2017-06-26 · 4 obs

● 2016-12-13 08:37:46
● 2017-06-26 22:14:32
○ 2026-04-04 02:02:38
○ 2026-04-27 21:06:26

●NSnsg1.namebrightdns.com2026-04-04 → 2026-04-27 · 3 obs

○ 2017-06-26 22:14:32
● 2026-04-04 02:02:38
● 2026-04-27 21:06:26

●NSnsg2.namebrightdns.com2026-04-04 → 2026-04-27 · 3 obs

○ 2017-06-26 22:14:32
● 2026-04-04 02:02:38
● 2026-04-27 21:06:26

●A13.223.25.842026-04-04 → 2026-04-27 · 3 obs

○ 2017-06-26 22:14:32
● 2026-04-04 02:02:38
● 2026-04-27 21:06:26

○A162.242.150.892016-12-13 → 2017-06-26 · 4 obs

● 2016-12-13 08:37:46
● 2017-06-26 22:14:32
○ 2026-04-04 02:02:38
○ 2026-04-27 21:06:26

○A176.34.241.2532016-12-13 → 2017-06-26 · 4 obs

● 2016-12-13 08:37:46
● 2017-06-26 22:14:32
○ 2026-04-04 02:02:38
○ 2026-04-27 21:06:26

○A23.253.58.2272016-12-13 → 2017-06-26 · 4 obs

● 2016-12-13 08:37:46
● 2017-06-26 22:14:32
○ 2026-04-04 02:02:38
○ 2026-04-27 21:06:26

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-04-04 → 2026-04-27 · 3 obs

○ 2017-06-26 22:14:32
● 2026-04-04 02:02:38
● 2026-04-27 21:06:26

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-04-04 → 2026-04-27 · 3 obs

○ 2017-06-26 22:14:32
● 2026-04-04 02:02:38
● 2026-04-27 21:06:26

○A54.205.101.852016-12-13 → 2017-06-26 · 4 obs

● 2016-12-13 08:37:46
● 2017-06-26 22:14:32
○ 2026-04-04 02:02:38
○ 2026-04-27 21:06:26

●A54.243.117.1972026-04-04 → 2026-04-27 · 3 obs

○ 2017-06-26 22:14:32
● 2026-04-04 02:02:38
● 2026-04-27 21:06:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, g.gtld-servers.net...	-
harcourtsgroup.com	nsg1.namebrightdns.com, nsg2.namebrightdns.com	16 records

✅ Authoritative Response

Server:23.20.203.129

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for harcourtsgroup.com (unsigned zone)

⏱️ Timing

Total: 748ms | 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

harcourtsgroup.com points to four IP numbers: 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb, 2600:1f18:4ae:c606:78d4:4260:db4e:aeee, 13.223.25.84 and 54.243.117.197.

Other host names, for instance stephanogroup.com, exe3.com, armads.com, mail.higheek.com and leaseyourwebsite.com share IP numbers with harcourtsgroup.com.

Name Servers

harcourtsgroup.com is delegated to three name servers: ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

harcourtsgroup.com at least partially shares its name servers with other domains, for instance bhcollege.com, quitefresh.com, wondershoppi.com, massmodern.com and soygu.com.

These name servers are commonly used with ns2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com.

Nine IP numbers:

The host name nsg1.namebrightdns.com points to: 2600:1f18:683a:ae1a:75fb:22eb:172f:aec9, 2600:1f18:683a:ae1a:c3af:86a5:e8eb:aca2, 2600:1f18:683a:ae1a:e3c3:c544:8988:662a, 2600:1f18:683a:ae1b:2e10:c73d:db4b:3b22, 2600:1f18:683a:ae1b:31ad:de47:fd30:d88c, 54.162.229.29, 54.167.103.108, 54.227.41.40 and 98.86.241.238.

Seven IP numbers:

The host name nsg2.namebrightdns.com points to: 2600:1f18:683a:ae1a:cd73:5cb2:dd14:e8a4, 2600:1f18:683a:ae1b:1662:eae1:cb5a:697f, 2600:1f18:683a:ae1b:f129:ff8d:3d0c:5bce, 3.85.213.1, 3.89.245.155, 23.20.203.129 and 98.80.252.22.

Six IP numbers:

The host name ns1.namebrightdns.com points to: 2600:1f18:683a:ae1a:ab0e:fd0:be06:9b6a, 2600:1f18:683a:ae1b:9989:7d37:6cd7:be, 2600:1f18:683a:ae1b:9d25:c3f4:6822:2e6a, 3.89.37.161, 54.197.218.14 and 107.23.118.193.

harcourtsgroup.com - robtex.com