`harlemhighschool.org`

DNSSEC	⚠️ Not signed
A	54.197.224.100^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
		PTR	`ec2-54-197-224-100.compute-1.amazonaws.com`
NS	`ns.highschoolnetwork.net` ⚠️ Not in zone NS records
		A	54.197.224.100^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
			PTR	`ec2-54-197-224-100.compute-1.amazonaws.com`
NS	`nsx.highschoolnetwork.net` ⚠️ Not in zone NS records
		A	54.197.224.100^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
			PTR	`ec2-54-197-224-100.compute-1.amazonaws.com`

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1775132291

Same first word

harlemhighschool.org

DNS History

5 records (3 active, 2 former)

●NSns.highschoolnetwork.net2026-02-27 → 2026-04-02 · 2 obs

● 2026-02-27 05:53:40
● 2026-04-02 12:43:12

●NSnsx.highschoolnetwork.net2026-02-27 → 2026-04-02 · 2 obs

● 2026-02-27 05:53:40
● 2026-04-02 12:43:12

●A54.197.224.1002026-02-27 → 2026-04-02 · 3 obs

○ 2020-03-11 08:34:26
● 2026-02-27 05:53:40
● 2026-04-02 12:43:12

○A54.197.224.1512015-05-28 → 2017-03-22 · 4 obs

● 2015-05-28 21:33:42
● 2017-03-22 07:45:20
○ 2020-03-11 08:34:26
○ 2026-04-02 12:43:12

○CNAMEmain-vpc-1294905581.us-east-1.elb.amazonaws.com2020-03-11 → 2020-03-11 · 3 obs

● 2020-03-11 08:34:26
○ 2026-02-27 05:53:40
○ 2026-04-02 12:43:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
harlemhighschool.org	ns.highschoolnetwork.net, nsx.highschoolnetwork.net	-

✅ Authoritative Response

Server:54.197.224.100

NS records: ns.highschoolnetwork.net, nsx.highschoolnetwork.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for harlemhighschool.org (unsigned zone)

⏱️ Timing

Total: 223ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`54.197.224.100`

Analysis

IP Addresses

harlemhighschool.org points to IP number: 54.197.224.100.

Other host names such as blandhighschool.com, www.woodburnhighschool.org, franciscanhighschool.com, duartehighschool.org and northplattehighschool.org share IPs with harlemhighschool.org.

Name Servers

harlemhighschool.org is delegated to two name servers: ns.highschoolnetwork.net and nsx.highschoolnetwork.net.

harlemhighschool.org shares the same name server setup as marlboroughhighschool.org, humphreyscountyhighschool.com, auburnriversidehighschool.org, woodrowwilsonhighschool.com and savannahhighschool.org.

Host names sharing one IP: ns.highschoolnetwork.net and nsx.highschoolnetwork.net point to 54.197.224.100.

harlemhighschool.org - robtex.com