`st10.schooltool.com`

	CNAME	`alb-public-01-59093676.us-east-1.elb.amazonaws.com`
	DNSSEC	⚠️ Not signed
	A	44.198.112.133^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
	A	50.17.79.123^{🇺🇸 Amazon50.17.0.0/16 IAD prefix}
	A	100.49.237.65^{🇺🇸 Amazon100.48.0.0/12 EC2 IAD prefix}

`schooltool.com`

	DNSSEC	⚠️ Not signed
	A	16.15.216.171^{Amazon16.15.216.0/21 EC2 Prefix}
	A	16.15.218.254^{Amazon16.15.216.0/21 EC2 Prefix}
	A	16.15.236.87^{Amazon16.15.232.0/21 EC2 Prefix}
	A	16.182.34.29^{Amazon16.182.34.0/24}
	A	16.182.75.37^{Amazon16.182.75.0/24}
	A	52.217.79.43^{Amazon52.217.76.0/22}
	A	52.217.170.77^{Amazon52.217.160.0/19 AWS S3}
	A	54.231.236.5^{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: #99,230

Same first word

st10.cc

st10.com.br

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st10.su

st10.net

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DNS History

1 record (1 active, 0 former)

●CNAMEalb-public-01-59093676.us-east-1.elb.amazonaws.com2026-03-13 → 2026-03-21 · 2 obs

● 2026-03-13 09:03:20
● 2026-03-21 10:21:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.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: 205.251.194.18

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: 1561ms | 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: 44.198.112.133, 50.17.79.123 and 100.49.237.65.

Other host names, for instance alb-public-01-59093676.us-east-1.elb.amazonaws.com, share IP numbers with st10.schooltool.com.

st10.schooltool.com - robtex.com