`booktocourse.com`

DNSSEC	⚠️ Not signed
A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
		PTR	`a904c694c05102f30.awsglobalaccelerator.com`
A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
NS	`ns3.afternic.com` ⭐
		A	97.74.98.65^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns3.afternic.com`
NS	`ns4.afternic.com`
		A	173.201.66.65^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns4.namefind.com`
TXT	`v=spf1 -all`
SOA	`ns3.afternic.com`dns@jomax.net 2025-10-01 #0

`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=1784177312

Same first word

booktocourse.com

DNS History

7 records (4 active, 3 former)

○NSns03.domaincontrol.com2020-03-28 → 2020-03-28 · 3 obs

● 2020-03-28 22:17:12
○ 2026-04-05 06:11:24
○ 2026-07-16 04:50:04

○NSns04.domaincontrol.com2020-03-28 → 2020-03-28 · 3 obs

● 2020-03-28 22:17:12
○ 2026-04-05 06:11:24
○ 2026-07-16 04:50:04

●NSns3.afternic.com2026-04-05 → 2026-07-16 · 3 obs

○ 2020-03-28 22:17:12
● 2026-04-05 06:11:24
● 2026-07-16 04:50:04

●NSns4.afternic.com2026-04-05 → 2026-07-16 · 3 obs

○ 2020-03-28 22:17:12
● 2026-04-05 06:11:24
● 2026-07-16 04:50:04

●A13.248.169.482026-04-05 → 2026-07-16 · 3 obs

○ 2020-03-28 22:17:12
● 2026-04-05 06:11:24
● 2026-07-16 04:50:04

○A184.168.221.492020-03-28 → 2020-03-28 · 3 obs

● 2020-03-28 22:17:12
○ 2026-04-05 06:11:24
○ 2026-07-16 04:50:04

●A76.223.54.1462026-04-05 → 2026-07-16 · 3 obs

○ 2020-03-28 22:17:12
● 2026-04-05 06:11:24
● 2026-07-16 04:50:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
booktocourse.com	ns3.afternic.com, ns4.afternic.com	2 records

✅ Authoritative Response

Server:173.201.66.65

NS records: ns3.afternic.com, ns4.afternic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for booktocourse.com (unsigned zone)

⏱️ Timing

Total: 86ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.248.169.48, 76.223.54.146`
NS	2	`ns3.afternic.com, ns4.afternic.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`ns3.afternic.com dns.jomax.net`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns3.afternic.com, ns4.afternic.com)

Analysis

IP Addresses

booktocourse.com points to the IP addresses 13.248.169.48 and 76.223.54.146

zoppy.com, tulzy.com, assurate.com plus two other host names have IP numbers in common with booktocourse.com.

Name Servers

Two name servers handle the delegation for booktocourse.com: ns3.afternic.com and ns4.afternic.com.

The name server configuration of booktocourse.com is shared with other domains, for instance cenik.com, geobill.com, magicbutler.com and two others.

The name servers of booktocourse.com overlap at least partially with those of other domains — among them webproxy.org, shop2u.com, antstv.com and two more.

Both ns3.afternic.com and ns4.afternic.com have a single IP address each — ns3.afternic.com resolves to 97.74.98.65 while ns4.afternic.com resolves to 173.201.66.65.

booktocourse.com - robtex.com