mail.duluthcorelearning.com - dns.ninja

`mail.duluthcorelearning.com`

CNAME	`ghs.googlehosted.com`
DNSSEC	⚠️ Not signed
A	2607:f8b0:4004:c06::79^{🇺🇸 Google2607:f8b0:4004::/48}
		PTR	`bg-in-f121.1e100.net`
A	172.253.115.121^{🇺🇸 Google172.253.115.0/24}

`duluthcorelearning.com`

	DNSSEC	⚠️ Not signed
	A	185.230.63.107^{🇺🇸 wix_com185.230.63.0/24}
	NS	`pdns1.registrar-servers.com` ⭐
	NS	`pdns2.registrar-servers.com`
	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	`MS=ms41656202`
	TXT	`google-site-verification=6B2u8ZX458xSNs0y-UsuzkS99kZ5aHTBoZTvzmZT18g`
	TXT	`v=spf1 include:_spf.google.com include:zohomail.com include:sender.zohobooks....`
	SOA	`pdns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1774379444

Previously MX for

duluthcorelearning.com

Same first word

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DNS History

3 records (1 active, 2 former)

○A143.95.249.252015-11-11 → 2016-11-26 · 4 obs

○ 2015-07-04 22:39:02
● 2015-11-11 08:34:18
● 2016-11-26 23:34:42
○ 2026-07-31 13:06:52

○A23.91.114.52015-07-04 → 2015-07-04 · 3 obs

● 2015-07-04 22:39:02
○ 2015-11-11 08:34:18
○ 2026-07-31 13:06:52

●CNAMEghs.googlehosted.com2026-07-31 → 2026-07-31 · 1 obs

● 2026-07-31 13:06:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net...	-
duluthcorelearning.com	pdns1.registrar-servers.com, pdns2.registrar-servers.com	4 records

✅ Authoritative Response

Server:156.154.133.100

NS records: pdns1.registrar-servers.com, pdns2.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duluthcorelearning.com (unsigned zone)

⏱️ Timing

Total: 111ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`ghs.googlehosted.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (pdns1.registrar-servers.com, pdns1.registrar-servers.com, pdns2.registrar-servers.com...)

Analysis

IP Addresses

mail.duluthcorelearning.com has two IP addresses: 172.253.115.121 and 2607:f8b0:4004:c06::79

Two other host names, along with dujup.com, xetai.net and ipso.quebec, also share IP numbers with mail.duluthcorelearning.com.