prepstep4year.com - dns.ninja

`prepstep4year.com`

DNSSEC	⚠️ Not signed
A	35.169.48.118^{🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix}
		PTR	`ec2-35-169-48-118.compute-1.amazonaws.com`
A	52.70.110.24^{🇺🇸 Amazon52.70.0.0/15 EC2 IAD prefix}
NS	`ns-640.awsdns-16.net` ⭐
		A	2600:9000:5302:8000::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-640.awsdns-16.net`
		A	205.251.194.128^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-640.awsdns-16.net`
NS	`ns-1198.awsdns-21.org`
		A	2600:9000:5304:ae00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1198.awsdns-21.org`
		A	205.251.196.174^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1198.awsdns-21.org`
NS	`ns-1698.awsdns-20.co.uk`
		A	2600:9000:5306:a200::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1698.awsdns-20.co.uk`
		A	205.251.198.162^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1698.awsdns-20.co.uk`
NS	`ns-447.awsdns-55.com`
		A	2600:9000:5301:bf00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-447.awsdns-55.com`
		A	205.251.193.191^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-447.awsdns-55.com`
SOA	`ns-640.awsdns-16.net`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=1786531119

Same first word

prepstep4year.com

DNS History

12 records (6 active, 6 former)

●NSns-1198.awsdns-21.org2018-05-08 → 2026-08-12 · 2 obs

● 2018-05-08 06:58:20
● 2026-08-12 10:53:58

●NSns-1698.awsdns-20.co.uk2018-05-08 → 2026-08-12 · 2 obs

● 2018-05-08 06:58:20
● 2026-08-12 10:53:58

●NSns-447.awsdns-55.com2018-05-08 → 2026-08-12 · 2 obs

● 2018-05-08 06:58:20
● 2026-08-12 10:53:58

●NSns-640.awsdns-16.net2018-05-08 → 2026-08-12 · 2 obs

● 2018-05-08 06:58:20
● 2026-08-12 10:53:58

○A3.210.241.1862026-04-30 → 2026-04-30 · 3 obs

○ 2026-02-25 15:24:42
● 2026-04-30 17:54:22
○ 2026-08-12 10:53:58

○A3.221.14.1832026-02-24 → 2026-02-25 · 5 obs

○ 2018-05-08 06:58:20
● 2026-02-24 09:33:52
● 2026-02-25 15:24:42
○ 2026-04-30 17:54:22
○ 2026-08-12 10:53:58

○A34.199.133.2162018-05-08 → 2018-05-08 · 3 obs

● 2018-05-08 06:58:20
○ 2026-02-24 09:33:52
○ 2026-08-12 10:53:58

○A34.202.98.1902026-02-24 → 2026-02-25 · 5 obs

○ 2018-05-08 06:58:20
● 2026-02-24 09:33:52
● 2026-02-25 15:24:42
○ 2026-04-30 17:54:22
○ 2026-08-12 10:53:58

●A35.169.48.1182026-08-12 → 2026-08-12 · 2 obs

○ 2026-04-30 17:54:22
● 2026-08-12 10:53:58

○A44.216.18.1882026-04-30 → 2026-04-30 · 3 obs

○ 2026-02-25 15:24:42
● 2026-04-30 17:54:22
○ 2026-08-12 10:53:58

●A52.70.110.242026-08-12 → 2026-08-12 · 2 obs

○ 2026-04-30 17:54:22
● 2026-08-12 10:53:58

○A54.164.201.2402018-05-08 → 2018-05-08 · 3 obs

● 2018-05-08 06:58:20
○ 2026-02-24 09:33:52
○ 2026-08-12 10:53:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, g.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net...	-
prepstep4year.com	ns-640.awsdns-16.net, ns-447.awsdns-55.com, ns-1698.awsdns-20.co.uk, ns-1198.awsdns-21.org	2 records

✅ Authoritative Response

Server:205.251.194.128

NS records: ns-640.awsdns-16.net, ns-447.awsdns-55.com, ns-1698.awsdns-20.co.uk, ns-1198.awsdns-21.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prepstep4year.com (unsigned zone)

⏱️ Timing

Total: 324ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`35.169.48.118, 52.70.110.24`
NS	4	`ns-1198.awsdns-21.org, ns-1698.awsdns-20.co.uk...`
SOA	1	`ns-640.awsdns-16.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-447.awsdns-55.com, ns-447.awsdns-55.com)

Analysis

IP Addresses

prepstep4year.com directs to two IP numbers, 35.169.48.118 and 52.70.110.24

Additional host names — including learningexpressebooks.com and learningexpresslibrary3.com — share IP numbers with prepstep4year.com.

Name Servers

The authoritative name servers for prepstep4year.com are ns-447.awsdns-55.com, ns-640.awsdns-16.net, ns-1198.awsdns-21.org and ns-1698.awsdns-20.co.uk.

prepstep4year.com has at least partial name server overlap with other domains, such as howl.fm, sfhpa.com, eveonline.co and two others.

ns-447.awsdns-55.com, ns-640.awsdns-16.net, ns-1198.awsdns-21.org and ns-1698.awsdns-20.co.uk all point to exactly two IP numbers each: ns-447.awsdns-55.com → 205.251.193.191 and 2600:9000:5301:bf00::1; ns-640.awsdns-16.net → 205.251.194.128 and 2600:9000:5302:8000::1; ns-1198.awsdns-21.org → 205.251.196.174 and 2600:9000:5304:ae00::1; ns-1698.awsdns-20.co.uk → 205.251.198.162 and 2600:9000:5306:a200::1.