`externalstudy.com`

DNSSEC	⚠️ Not signed
A	2600:1f18:4ae:c607:d1d9:565f:b122:bfdb^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	2600:1f18:4ae:c608:83f8:2f9c:4a61:7b6a^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	52.44.244.98^{🇺🇸 Amazon52.44.0.0/15 EC2 Region prefix}
A	54.165.131.183^{🇺🇸 Amazon54.164.0.0/15 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:ae1a:7bc2:638d:8ca6:fcc4^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:d57d:390a:64b4:d4f1^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	52.203.211.134^{🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix}
			PTR	`ec2-52-203-211-134.compute-1.amazonaws.com`
		A	52.204.81.90^{🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix}
			PTR	`ec2-52-204-81-90.compute-1.amazonaws.com`
NS	`ns2.namebrightdns.com`
		A	2600:1f18:683a:ae1b:885d:9b52:c623:6fb9^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	54.234.117.29^{🇺🇸 Amazon54.234.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-234-117-29.compute-1.amazonaws.com`
		A	54.243.19.140^{🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-243-19-140.compute-1.amazonaws.com`
MX	`mail1.namebrightmail.com` ⭐
		A	66.35.35.26^{🇺🇸 IMDC66.35.35.0/24}
			PTR	`mail1.namebrightmail.com`
MX	`mail2.namebrightmail.com` ⭐
		A	66.35.35.28^{🇺🇸 IMDC66.35.35.0/24}
			PTR	`mail2.namebrightmail.com`
TXT	`google-site-verification=YourUniqueGoogleVerificationCode`
TXT	`godaddyverification=OxH5VFQwoNoPePp+3uBXiw==`
TXT	`v=spf1 a:smtpout1.namebrightmail.com a:smtpout2.namebrightmail.com include:na...`
TXT	`afternic-verification-W4rHXN8wVHjVbBFXxCrVhd`
TXT	`d0608e60692cb76fe88bb98cc9a8cc102f821ed6`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-07-09 #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=1783657512

Subdomains

mx.externalstudy.com

Same first word

externalstudy.com

DNS History

33 records (8 active, 25 former)

○NSadelaide.ns.cloudflare.com2026-03-27 → 2026-07-10 · 2 obs

○ 2026-03-27 01:34:52
○ 2026-07-10 04:33:58

○NSns1.fabulous.com2015-06-26 → 2015-06-26 · 3 obs

● 2015-06-26 11:49:06
○ 2015-11-05 01:16:24
○ 2026-07-10 04:33:58

●NSns1.namebrightdns.com2026-04-21 → 2026-07-10 · 3 obs

○ 2026-03-27 01:34:52
● 2026-04-21 19:07:14
● 2026-07-10 04:33:58

○NSns1.parkingcrew.net2015-11-05 → 2016-04-20 · 5 obs

○ 2015-06-26 11:49:06
● 2015-11-05 01:16:24
● 2016-04-20 10:56:18
○ 2017-01-08 23:12:12
○ 2026-07-10 04:33:58

○NSns1.undeveloped.com2018-07-17 → 2018-07-17 · 4 obs

○ 2017-01-08 23:12:12
● 2018-07-17 21:45:52
○ 2026-03-27 01:34:52
○ 2026-07-10 04:33:58

○NSns1.uniregistrymarket.link2017-01-08 → 2017-01-08 · 4 obs

○ 2016-04-20 10:56:18
● 2017-01-08 23:12:12
○ 2018-07-17 21:45:52
○ 2026-07-10 04:33:58

○NSns2.fabulous.com2015-06-26 → 2015-06-26 · 3 obs

● 2015-06-26 11:49:06
○ 2015-11-05 01:16:24
○ 2026-07-10 04:33:58

●NSns2.namebrightdns.com2026-04-21 → 2026-07-10 · 3 obs

○ 2026-03-27 01:34:52
● 2026-04-21 19:07:14
● 2026-07-10 04:33:58

○NSns2.parkingcrew.net2015-11-05 → 2016-04-20 · 5 obs

○ 2015-06-26 11:49:06
● 2015-11-05 01:16:24
● 2016-04-20 10:56:18
○ 2017-01-08 23:12:12
○ 2026-07-10 04:33:58

○NSns2.undeveloped.com2018-07-17 → 2018-07-17 · 4 obs

○ 2017-01-08 23:12:12
● 2018-07-17 21:45:52
○ 2026-03-27 01:34:52
○ 2026-07-10 04:33:58

○NSns2.uniregistrymarket.link2017-01-08 → 2017-01-08 · 4 obs

○ 2016-04-20 10:56:18
● 2017-01-08 23:12:12
○ 2018-07-17 21:45:52
○ 2026-07-10 04:33:58

○NSryan.ns.cloudflare.com2026-03-27 → 2026-07-10 · 2 obs

○ 2026-03-27 01:34:52
○ 2026-07-10 04:33:58

○MXmail.b-io.co2015-06-26 → 2015-06-26 · 3 obs

● 2015-06-26 11:49:06
○ 2015-11-05 01:16:24
○ 2026-07-10 04:33:58

○MXmail.h-email.net2015-11-05 → 2016-04-20 · 5 obs

○ 2015-06-26 11:49:06
● 2015-11-05 01:16:24
● 2016-04-20 10:56:18
○ 2017-01-08 23:12:12
○ 2026-07-10 04:33:58

●MXmail1.namebrightmail.com2026-04-21 → 2026-07-10 · 3 obs

○ 2026-03-27 01:34:52
● 2026-04-21 19:07:14
● 2026-07-10 04:33:58

●MXmail2.namebrightmail.com2026-04-21 → 2026-07-10 · 3 obs

○ 2026-03-27 01:34:52
● 2026-04-21 19:07:14
● 2026-07-10 04:33:58

○MXmta-70-150-15.externalstudy.com2026-03-27 → 2026-07-10 · 2 obs

○ 2026-03-27 01:34:52
○ 2026-07-10 04:33:58

○MXmx.externalstudy.com2018-07-17 → 2018-07-17 · 4 obs

○ 2017-01-08 23:12:12
● 2018-07-17 21:45:52
○ 2026-03-27 01:34:52
○ 2026-07-10 04:33:58

○A172.64.80.12026-03-27 → 2026-07-10 · 2 obs

○ 2026-03-27 01:34:52
○ 2026-07-10 04:33:58

○A185.53.177.92015-11-05 → 2016-01-24 · 5 obs

○ 2015-06-26 11:49:06
● 2015-11-05 01:16:24
● 2016-01-24 08:16:40
○ 2016-04-20 10:56:18
○ 2026-07-10 04:33:58

○A208.48.81.1332015-06-26 → 2015-06-26 · 3 obs

● 2015-06-26 11:49:06
○ 2015-11-05 01:16:24
○ 2026-07-10 04:33:58

○A208.48.81.1342015-06-26 → 2015-06-26 · 3 obs

● 2015-06-26 11:49:06
○ 2015-11-05 01:16:24
○ 2026-07-10 04:33:58

○A208.48.81.1792015-06-26 → 2015-06-26 · 3 obs

● 2015-06-26 11:49:06
○ 2015-11-05 01:16:24
○ 2026-07-10 04:33:58

●A2600:1f18:4ae:c607:d1d9:565f:b122:bfdb2026-04-21 → 2026-07-10 · 3 obs

○ 2026-03-27 01:34:52
● 2026-04-21 19:07:14
● 2026-07-10 04:33:58

●A2600:1f18:4ae:c608:83f8:2f9c:4a61:7b6a2026-04-21 → 2026-07-10 · 3 obs

○ 2026-03-27 01:34:52
● 2026-04-21 19:07:14
● 2026-07-10 04:33:58

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-27 → 2026-07-10 · 2 obs

○ 2026-03-27 01:34:52
○ 2026-07-10 04:33:58

●A52.44.244.982026-04-21 → 2026-07-10 · 3 obs

○ 2026-03-27 01:34:52
● 2026-04-21 19:07:14
● 2026-07-10 04:33:58

○A52.58.78.162018-07-17 → 2018-07-17 · 4 obs

○ 2017-01-08 23:12:12
● 2018-07-17 21:45:52
○ 2026-03-27 01:34:52
○ 2026-07-10 04:33:58

●A54.165.131.1832026-04-21 → 2026-07-10 · 3 obs

○ 2026-03-27 01:34:52
● 2026-04-21 19:07:14
● 2026-07-10 04:33:58

○A54.72.9.512016-04-20 → 2016-04-20 · 4 obs

○ 2016-01-24 08:16:40
● 2016-04-20 10:56:18
○ 2017-01-08 23:12:12
○ 2026-07-10 04:33:58

○A64.15.205.1002015-06-26 → 2015-06-26 · 3 obs

● 2015-06-26 11:49:06
○ 2015-11-05 01:16:24
○ 2026-07-10 04:33:58

○A64.15.205.1012015-06-26 → 2015-06-26 · 3 obs

● 2015-06-26 11:49:06
○ 2015-11-05 01:16:24
○ 2026-07-10 04:33:58

○A69.172.201.1532017-01-08 → 2017-01-08 · 4 obs

○ 2016-04-20 10:56:18
● 2017-01-08 23:12:12
○ 2018-07-17 21:45:52
○ 2026-07-10 04:33:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
externalstudy.com	ns1.namebrightdns.com, ns2.namebrightdns.com	8 records

✅ Authoritative Response

Server:54.234.117.29

NS records: ns1.namebrightdns.com, ns2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for externalstudy.com (unsigned zone)

⏱️ Timing

Total: 291ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`54.165.131.183, 52.44.244.98`
AAAA	2	`2600:1f18:4ae:c607:d1d9:565f:b122:bfdb, 2600:1f18:4ae:c608:83f8:2f9c:4a61:7b6a`
NS	2	`ns1.namebrightdns.com, ns2.namebrightdns.com`
MX	2	`mail1.namebrightmail.com (pri: 10), mail2.namebrightmail.com (pri: 10)`
TXT	5	`godaddyverification=OxH5VFQwoNoPePp+3uBX, v=spf1 a:smtpout1.namebrightmail.com a:s...`
SOA	1	`ns1.namebrightdns.com dns.namebright.com`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns1.namebrightdns.com, ns1.namebrightdns.com, ns1.namebrightdns.com...)

Analysis

Hierarchy

externalstudy.com serves as the parent of mx.externalstudy.com.

IP Addresses

externalstudy.com resolves to four IP addresses: 52.44.244.98, 54.165.131.183, 2600:1f18:4ae:c607:d1d9:565f:b122:bfdb and 2600:1f18:4ae:c608:83f8:2f9c:4a61:7b6a.

Two other host names, along with guestlister.com, xyzfans.com and iamseaman.com, also share IP numbers with externalstudy.com.

Name Servers

Two name servers handle the delegation for externalstudy.com: ns1.namebrightdns.com and ns2.namebrightdns.com.

externalstudy.com shares its NS records with other domains, for example sniper.saracom.net, www.nczfzx.com, 8290.lulu7.com and two others.

externalstudy.com has at least partial name server overlap with other domains, such as yinghouse.com, xpearls.com, improntacomunicacion.com and two others.

nsg1.namebrightdns.com, nsg2.namebrightdns.com and domain-for-sale.hugedomainsdns.com — plus 3 other name servers — are commonly paired with these name servers.

Host names directing to five IP addresses:

ns1.namebrightdns.com has four IP addresses — 52.203.211.134, 52.204.81.90, 2600:1f18:683a:ae1a:6900:d1bd:7672:d0ca and two others.

Hostnames that map to three IP numbers:

The hostname ns2.namebrightdns.com points to 54.234.117.29, 54.243.19.140 and 2600:1f18:683a:ae1b:885d:9b52:c623:6fb9.

Mail Servers

externalstudy.com is served by two mail servers, mail1.namebrightmail.com and mail2.namebrightmail.com.

Among the domains sharing a mail server setup with externalstudy.com are baseballtheme.com, medicine-cancer-breast.com, reptilespecialty.com and two others.

The mail servers of externalstudy.com are at least partially shared with other domains, including mikemccollum.com.

mail1.namebrightmail.com directs to 66.35.35.26 and mail2.namebrightmail.com directs to 66.35.35.28; each host name points to exactly one IP number.

externalstudy.com - robtex.com