`st10.schooltool.com`

CNAME	`alb-public-01-59093676.us-east-1.elb.amazonaws.com`
DNSSEC	⚠️ Not signed
A	3.226.197.6^{🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix}
		PTR	`ec2-3-226-197-6.compute-1.amazonaws.com`
A	50.19.81.179^{🇺🇸 Amazon50.19.0.0/17 EC2 IAD prefix}
A	52.70.119.244^{🇺🇸 Amazon52.70.0.0/15 EC2 IAD prefix}

`schooltool.com`

	DNSSEC	⚠️ Not signed
	A	16.15.176.117^{🇺🇸 Amazon16.15.176.0/21 EC2 Prefix}
	A	16.15.183.121^{🇺🇸 Amazon16.15.176.0/21 EC2 Prefix}
	A	16.15.187.32^{🇺🇸 Amazon16.15.184.0/21 EC2 Prefix}
	A	16.15.192.54^{🇺🇸 Amazon16.15.192.0/21 EC2 Prefix}
	A	16.15.199.46^{🇺🇸 Amazon16.15.192.0/21 EC2 Prefix}
	A	16.15.207.7^{🇺🇸 Amazon16.15.200.0/21 EC2 Prefix}
	A	52.217.112.181^{🇺🇸 Amazon52.217.112.0/20 AWS S3}
	A	54.231.234.13^{🇺🇸 Amazon54.231.224.0/19}
	NS	`ns-207.awsdns-25.com` ⭐
	NS	`ns-1055.awsdns-03.org`
	NS	`ns-1745.awsdns-26.co.uk`
	NS	`ns-530.awsdns-02.net`
	MX	`schooltool-com.mail.protection.outlook.com` ⭐
	TXT	`google-site-verification=Km_87F5BklXz5qnonXj9GQu3EaFQMZjV6koauuexJBM`
	TXT	`v=spf1 include:amazonses.com include:spf.protection.outlook.com include:spf.m...`
	SOA	`ns-207.awsdns-25.com`awsdns-hostmaster@amazon.com serial=1

📈 Tranco rank: #92,119

Same first word

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DNS History

1 record (1 active, 0 former)

●CNAMEalb-public-01-59093676.us-east-1.elb.amazonaws.com2026-03-13 → 2026-03-18 · 2 obs

● 2026-03-13 09:03:20
● 2026-03-18 17:22:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net...	-
schooltool.com	ns-207.awsdns-25.com, ns-530.awsdns-02.net, ns-1745.awsdns-26.co.uk, ns-1055.awsdns-03.org	1 record
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-
schooltool.com	ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net	-

✅ Authoritative Response

Server: 205.251.192.207

NS records: ns-1055.awsdns-03.org, ns-1745.awsdns-26.co.uk, ns-207.awsdns-25.com, ns-530.awsdns-02.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schooltool.com (unsigned zone)

⏱️ Timing

Total: 1254ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`alb-public-01-59093676.us-east-1.elb.ama`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-207.awsdns-25.com)

Analysis

IP Addresses

st10.schooltool.com points to three IPs: 3.226.197.6, 50.19.81.179 and 52.70.119.244.

Other host names, for instance ec2-50-19-81-179.compute-1.amazonaws.com, share IP numbers with st10.schooltool.com.

st10.schooltool.com - robtex.com