`mail.secondhandcomputerbooks.com`

	CNAME	`comingsoon.namebright.com`
	CNAME	`cdl-prd-http-a5ed094605213071.elb.us-east-1.amazonaws.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}

`secondhandcomputerbooks.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` ⭐
	NS	`ns2.namebrightdns.com`
	MX	`mail1.namebrightmail.com` ⭐
	MX	`mail2.namebrightmail.com` ⭐
	TXT	`google-site-verification=YourUniqueGoogleVerificationCode`
	TXT	`v=spf1 a:smtpout1.namebrightmail.com a:smtpout2.namebrightmail.com include:na...`
	SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-03-23 #1

Same first word

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mail.(0x7075737379)cat.jp

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mail.zp.ua

mail.ac.me

mail.info.at

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mail.gov.ua

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mail.com.au

mail.cat

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mail.team

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DNS History

5 records (3 active, 2 former)

●NSns1.namebrightdns.com2015-07-11 → 2026-03-23 · 5 obs

● 2015-07-11 21:16:58
○ 2015-11-22 14:36:08
○ 2016-02-28 16:13:56
● 2016-07-02 09:30:34
● 2026-03-23 09:10:14

●NSns2.namebrightdns.com2015-07-11 → 2026-03-23 · 2 obs

● 2015-07-11 21:16:58
● 2026-03-23 09:10:14

○NSnsg1.namebrightdns.com2015-07-11 → 2016-02-28 · 4 obs

● 2015-07-11 21:16:58
● 2016-02-28 16:13:56
○ 2016-07-02 09:30:34
○ 2026-03-23 09:10:14

○A54.175.122.202015-07-11 → 2016-07-02 · 3 obs

● 2015-07-11 21:16:58
● 2016-07-02 09:30:34
○ 2026-03-23 09:10:14

●CNAMEcomingsoon.namebright.com2026-03-23 → 2026-03-23 · 1 obs

● 2026-03-23 09:10:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
secondhandcomputerbooks.com	ns1.namebrightdns.com, ns2.namebrightdns.com	10 records

✅ Authoritative Response

Server:52.91.47.137

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for secondhandcomputerbooks.com (unsigned zone)

⏱️ Timing

Total: 81ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.namebrightdns.com, ns2.namebrightdns.com`
CNAME	1	`comingsoon.namebright.com`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns1.namebrightdns.com, ns1.namebrightdns.com, ns1.namebrightdns.com...)

Analysis

IP Addresses

Four IP numbers are pointed to by mail.secondhandcomputerbooks.com: 2600:1f18:4ae:c607:d1d9:565f:b122:bfdb, 2600:1f18:4ae:c608:83f8:2f9c:4a61:7b6a, 52.44.244.98 and 54.165.131.183.

other host names including 7dum.com, efdream.com, portlandimaging.com, zamn.com and spacemag.com share IP numbers with mail.secondhandcomputerbooks.com.

mail.secondhandcomputerbooks.com - robtex.com