`prepstephighschool.com`

DNSSEC	⚠️ Not signed
A	3.221.14.183^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
		PTR	`ec2-3-221-14-183.compute-1.amazonaws.com`
A	34.202.98.190^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
NS	`ns-1920.awsdns-48.co.uk` ⭐
		A	2600:9000:5307:8000::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1920.awsdns-48.co.uk`
		A	205.251.199.128^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1920.awsdns-48.co.uk`
NS	`ns-1261.awsdns-29.org`
		A	2600:9000:5304:ed00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1261.awsdns-29.org`
		A	205.251.196.237^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1261.awsdns-29.org`
NS	`ns-216.awsdns-27.com`
		A	2600:9000:5300:d800::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-216.awsdns-27.com`
		A	205.251.192.216^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-216.awsdns-27.com`
NS	`ns-520.awsdns-01.net`
		A	2600:9000:5302:800::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-520.awsdns-01.net`
		A	205.251.194.8^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-520.awsdns-01.net`
SOA	`ns-1920.awsdns-48.co.uk`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=1771291435

Same first word

prepstephighschool.com

DNS History

9 records (6 active, 3 former)

●NSns-1261.awsdns-29.org2016-12-19 → 2026-02-25 · 2 obs

● 2016-12-19 16:03:22
● 2026-02-25 13:16:52

●NSns-1920.awsdns-48.co.uk2016-12-19 → 2026-02-25 · 2 obs

● 2016-12-19 16:03:22
● 2026-02-25 13:16:52

●NSns-216.awsdns-27.com2016-12-19 → 2026-02-25 · 2 obs

● 2016-12-19 16:03:22
● 2026-02-25 13:16:52

●NSns-520.awsdns-01.net2016-12-19 → 2026-02-25 · 2 obs

● 2016-12-19 16:03:22
● 2026-02-25 13:16:52

●A3.221.14.1832026-02-25 → 2026-02-25 · 3 obs

○ 2017-09-24 14:23:12
● 2026-02-25 13:16:50
● 2026-02-25 13:16:52

●A34.202.98.1902026-02-25 → 2026-02-25 · 3 obs

○ 2017-09-24 14:23:12
● 2026-02-25 13:16:50
● 2026-02-25 13:16:52

○A52.207.149.102016-12-19 → 2017-09-24 · 4 obs

● 2016-12-19 16:03:22
● 2017-09-24 14:23:12
○ 2026-02-25 13:16:50
○ 2026-02-25 13:16:52

○A52.21.151.202017-09-24 → 2017-09-24 · 4 obs

○ 2016-12-19 16:03:22
● 2017-09-24 14:23:12
○ 2026-02-25 13:16:50
○ 2026-02-25 13:16:52

○A54.84.92.2222016-12-19 → 2016-12-19 · 3 obs

● 2016-12-19 16:03:22
○ 2017-09-24 14:23:12
○ 2026-02-25 13:16:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net...	-
prepstephighschool.com	ns-216.awsdns-27.com, ns-520.awsdns-01.net, ns-1261.awsdns-29.org, ns-1920.awsdns-48.co.uk	1 record

✅ Authoritative Response

Server: 205.251.192.216

NS records: ns-216.awsdns-27.com, ns-520.awsdns-01.net, ns-1261.awsdns-29.org, ns-1920.awsdns-48.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prepstephighschool.com (unsigned zone)

⏱️ Timing

Total: 251ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`34.202.98.190, 3.221.14.183`
NS	4	`ns-1261.awsdns-29.org, ns-1920.awsdns-48.co.uk...`
SOA	1	`ns-1920.awsdns-48.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-216.awsdns-27.com)

AI analysis

prepstephighschool.com resolves to two IP numbers: 3.221.14.183 and 34.202.98.190.

other host names including learnx.com, learnatest.com, lexpr.es, ec2-3-221-14-183.compute-1.amazonaws.com and prepstep4year.com share IP numbers with prepstephighschool.com.

prepstephighschool.com is delegated to four name servers: ns-216.awsdns-27.com, ns-520.awsdns-01.net, ns-1261.awsdns-29.org and ns-1920.awsdns-48.co.uk.

prepstephighschool.com at least partially shares name servers with other domains, for instance turnstock.com, aap2.com, unigrancapital.com.br, www.acer.cz and fabio-bertarelli.net.

Host names with two IP numbers:

ns-216.awsdns-27.com points to 2600:9000:5300:d800::1 and 205.251.192.216; ns-520.awsdns-01.net points to 2600:9000:5302:800::1 and 205.251.194.8; ns-1261.awsdns-29.org points to 2600:9000:5304:ed00::1 and 205.251.196.237; ns-1920.awsdns-48.co.uk points to 2600:9000:5307:8000::1 and 205.251.199.128.

prepstephighschool.com - robtex.com