`justthinkbook.com`

DNSSEC	⚠️ Not signed
NS	`ns-1336.awsdns-39.org` ⭐
		A	2600:9000:5305:3800::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1336.awsdns-39.org`
		A	205.251.197.56^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1336.awsdns-39.org`
NS	`ns-1569.awsdns-04.co.uk`
		A	2600:9000:5306:2100::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1569.awsdns-04.co.uk`
		A	205.251.198.33^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1569.awsdns-04.co.uk`
NS	`ns-494.awsdns-61.com`
		A	2600:9000:5301:ee00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-494.awsdns-61.com`
		A	205.251.193.238^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-494.awsdns-61.com`
NS	`ns-802.awsdns-36.net`
		A	2600:9000:5303:2200::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-802.awsdns-36.net`
		A	205.251.195.34^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-802.awsdns-36.net`
SOA	`ns-1336.awsdns-39.org`awsdns-hostmaster@amazon.com serial=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=1778629606

Same first word

justthinkbook.com

DNS History

4 records (4 active, 0 former)

●NSns-1336.awsdns-39.org2026-05-04 → 2026-05-13 · 2 obs

● 2026-05-04 20:58:30
● 2026-05-13 00:08:32

●NSns-1569.awsdns-04.co.uk2026-05-04 → 2026-05-13 · 2 obs

● 2026-05-04 20:58:30
● 2026-05-13 00:08:32

●NSns-494.awsdns-61.com2026-05-04 → 2026-05-13 · 2 obs

● 2026-05-04 20:58:30
● 2026-05-13 00:08:32

●NSns-802.awsdns-36.net2026-05-04 → 2026-05-13 · 2 obs

● 2026-05-04 20:58:30
● 2026-05-13 00:08:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
justthinkbook.com	ns-494.awsdns-61.com, ns-802.awsdns-36.net, ns-1569.awsdns-04.co.uk, ns-1336.awsdns-39.org	2 records

✅ Authoritative Response

Server:205.251.197.56

NS records: ns-494.awsdns-61.com, ns-802.awsdns-36.net, ns-1569.awsdns-04.co.uk, ns-1336.awsdns-39.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for justthinkbook.com (unsigned zone)

⏱️ Timing

Total: 225ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-1336.awsdns-39.org, ns-1569.awsdns-04.co.uk...`
SOA	1	`ns-1336.awsdns-39.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-494.awsdns-61.com, ns-494.awsdns-61.com)

Analysis

Name Servers

justthinkbook.com delegates to four name servers: ns-494.awsdns-61.com, ns-802.awsdns-36.net, ns-1336.awsdns-39.org and ns-1569.awsdns-04.co.uk.

justthinkbook.com at least partially shares name servers with other domains, including d2fqc6t7b8gz28.cloudfront.net, kswaveco.com, on-aptible.com, energymonitor.ai and dahpr.net.

Host names with two IP numbers: ns-494.awsdns-61.com points to 2600:9000:5301:ee00::1 and 205.251.193.238; ns-802.awsdns-36.net points to 2600:9000:5303:2200::1 and 205.251.195.34; ns-1336.awsdns-39.org points to 2600:9000:5305:3800::1 and 205.251.197.56; ns-1569.awsdns-04.co.uk points to 2600:9000:5306:2100::1 and 205.251.198.33.

justthinkbook.com - robtex.com