student.libctrlsd.org - dns.ninja

`student.libctrlsd.org`

DNSSEC	⚠️ Not signed
MX	`nwoca.mx.esu.k12.oh.us` ⭐
		A	216.71.137.35^{🇺🇸 CISCO-1216.71.137.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	216.71.141.74^{🇺🇸 CISCO-1216.71.141.0/24 170 West Tasman Drive San Jose CA 95134 United States}

`libctrlsd.org`

	DNSSEC	⚠️ Not signed
	A	208.108.122.165^{🇺🇸 RoadRunner208.108.120.0/22}
	NS	`nwdns0.nwoca.org` ⭐
	NS	`exdns1.nwoca.org`
	NS	`exdns2.nwoca.org`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`aspmx2.googlemail.com`⁽¹⁰⁾
	MX	`aspmx3.googlemail.com`⁽¹⁰⁾
	TXT	`v=msv1 t=e702bd1040391547a09775ad0b85e9`
	TXT	`google-site-verification=gWbniCzjq7sZVwH9yM03m3uu2pIQuj61vys0tDH78uw`
	TXT	`apple-domain-verification=CgOjLtidgAgkmiBz`
	SOA	`nwdns0.nwoca.org`hostmaster@nwoca.org 2026-07-01 #21

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DNS History

1 record (1 active, 0 former)

●MXnwoca.mx.esu.k12.oh.us2018-11-22 → 2026-07-28 · 2 obs

● 2018-11-22 15:45:00
● 2026-07-28 13:25:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
libctrlsd.org	exdns2.nwoca.org, exdns1.nwoca.org	2 records

✅ Authoritative Response

Server:137.83.92.150

NS records: exdns2.nwoca.org, exdns1.nwoca.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for libctrlsd.org (unsigned zone)

⏱️ Timing

Total: 1229ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	1	`nwoca.mx.esu.k12.oh.us (pri: 10)`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (exdns2.nwoca.org, exdns1.nwoca.org)

Analysis

Mail Servers

student.libctrlsd.org uses one mail server — nwoca.mx.esu.k12.oh.us.

The mail server setup of student.libctrlsd.org matches that of other domains such as mail.rossford.k12.oh.us, nwoca.esu.k12.oh.us, holgate.k12.oh.us and two others.

The host nwoca.mx.esu.k12.oh.us resolves to 216.71.137.35 and 216.71.141.74 — two IP addresses.