`hfsbooks.com`

DNSSEC	🔒 Signed (DS record present)
A	34.213.210.202^{🇺🇸 Amazon34.208.0.0/12 EC2 PDX prefix}
		PTR	`ec2-34-213-210-202.us-west-2.compute.amazonaws.com`
NS	`ens1.jhu.edu` ⭐
		A	2606:2b00:0:405::10^{🇺🇸 AS57232606:2b00::/32 Hopkins Information Technology Services 3400 North Charles Street Garland Hall, Suite 020 Baltimore MD 21218 United States}
		A	128.220.1.75^{🇺🇸 AS5723128.220.0.0/16 JHU 128.220.0.0/16 Hopkins Information Technology Services 3400 North Charles Street Garland Hall, Suite 020 Baltimore MD 21218 United States}
			PTR	`ens1.jhu.edu`
NS	`ens1.jhmi.edu`
		A	2606:2b00:0:401::10^{🇺🇸 AS57232606:2b00::/32 Hopkins Information Technology Services 3400 North Charles Street Garland Hall, Suite 020 Baltimore MD 21218 United States}
		A	162.129.253.134^{🇺🇸 AS5723162.129.0.0/16 JHMI 162.129.0.0/16 600 North Wolfe Street Baltimore MD 21205 United States}
			PTR	`ens1.jhmi.edu`
SOA	`ens1.jhu.edu`empty@empty serial=224

`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=1778354921

rank #626126 globally
rank #272550 in the tld

Same first word

hfsbooks.com

DNS History

5 records (3 active, 2 former)

●NSens1.jhmi.edu2017-01-04 → 2026-05-09 · 2 obs

● 2017-01-04 19:01:14
● 2026-05-09 19:51:10

●NSens1.jhu.edu2017-01-04 → 2026-05-09 · 2 obs

● 2017-01-04 19:01:14
● 2026-05-09 19:51:10

○NSesgbloxgmc.johnshopkins.edu2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 19:01:14
○ 2020-03-26 11:50:52
○ 2026-05-09 19:51:10

●A34.213.210.2022026-03-19 → 2026-05-09 · 3 obs

○ 2020-03-26 11:50:52
● 2026-03-19 10:09:28
● 2026-05-09 19:51:10

○A52.10.164.432017-01-04 → 2020-03-26 · 4 obs

● 2017-01-04 19:01:14
● 2020-03-26 11:50:52
○ 2026-03-19 10:09:28
○ 2026-05-09 19:51:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
hfsbooks.com	ens1.jhmi.edu, ens1.jhu.edu	-

✅ Authoritative Response

Server:128.220.1.75

NS records: ens1.jhmi.edu, ens1.jhu.edu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 561ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`34.213.210.202`
NS	2	`ens1.jhu.edu, ens1.jhmi.edu`
SOA	1	`ens1.jhu.edu empty.empty`

Analysis

IP Addresses

hfsbooks.com resolves to one IP number: 34.213.210.202.

Other host names such as ec2-34-213-210-202.us-west-2.compute.amazonaws.com and tenandtwo.io share IP numbers with hfsbooks.com.

Name Servers

hfsbooks.com is delegated to two name servers ens1.jhmi.edu and ens1.jhu.edu.

hfsbooks.com shares the same name server setup as other domains, for instance saludhopkins.net, medart.jhmi.edu, explorehopkinshospital.org, hosts.jhmi.edu and blackwealthdata.org.

hfsbooks.com at least partially shares name servers with other domains, for instance 1.129.162.in-addr.arpa, 11.220.128.in-addr.arpa, math.jhu.edu, smart-stats-tools.net and 234.220.128.in-addr.arpa.

Host names with two IP numbers:

The host name ens1.jhmi.edu points to 2606:2b00:0:401::10 and 162.129.253.134; the host name ens1.jhu.edu points to 2606:2b00:0:405::10 and 128.220.1.75.

hfsbooks.com - robtex.com

hfsbooks.com

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