`deltaeducation.com`

DNSSEC	⚠️ Not signed
A	67.52.17.30^{🇺🇸 RoadRunner67.52.17.0/24 RR-RC-School Specialty, Inc.-NEW}
		PTR	`syn-067-052-017-030.biz.spectrum.com`
NS	`ns1-03.azure-dns.com` ⭐
		A	2603:1061:0:700::3^{🇺🇸 Microsoft2603:1000::/25 MICROSOFT}
			PTR	`ns1-03.azure-dns.com`
		A	13.107.236.3^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
			PTR	`ns1-03.azure-dns.com`
NS	`ns2-03.azure-dns.net`
		A	2620:1ec:8ec:700::3^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns2-03.azure-dns.net`
		A	150.171.21.3^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
			PTR	`ns2-03.azure-dns.net`
NS	`ns3-03.azure-dns.org`
		A	2a01:111:4000:700::3^{🇬🇧 Microsoft2a01:111:4000::/36}
			PTR	`ns3-03.azure-dns.org`
		A	204.14.183.3^{🇺🇸 Microsoft204.14.180.0/22}
			PTR	`ns3-03.azure-dns.org`
NS	`ns4-03.azure-dns.info`
		A	2620:1ec:bda:700::3^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns4-03.azure-dns.info`
		A	208.84.5.3^{🇺🇸 Microsoft208.84.0.0/21 MICROSOFT}
			PTR	`ns4-03.azure-dns.info`
MX	`deltaeducation-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::4^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01504.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::7^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr02cu00107.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-mn2pr02cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:f903::^{🇺🇸 Microsoft2a01:111:f000::/36}
		A	52.101.9.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr02cu00100.inbound.protection.outlook.com`
		A	52.101.10.18^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00302.inbound.protection.outlook.com`
		A	52.101.41.56^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr21cu00100.inbound.protection.outlook.com`
		A	52.101.42.18^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr03cu00302.inbound.protection.outlook.com`
TXT	`MS=ms85468114`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`facebook-domain-verification=zo7be2ge0q94jk34ltuqas9qdannf`
SOA	`ns1-03.azure-dns.com`azuredns-hostmaster@microsoft.com serial=1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774447622

Subdomains

relay.deltaeducation.com

Same first word

deltaeducation.com

deltaeducation.it

deltaeducation.org

Similar names

educationdelta.com

DNS History

21 records (6 active, 15 former)

●NSns1-03.azure-dns.com2026-03-08 → 2026-03-25 · 3 obs

○ 2020-03-19 19:45:56
● 2026-03-08 09:00:42
● 2026-03-25 14:10:44

●NSns2-03.azure-dns.net2026-03-08 → 2026-03-25 · 3 obs

○ 2020-03-19 19:45:56
● 2026-03-08 09:00:42
● 2026-03-25 14:10:44

○NSns2.schoolspecialty.com2015-06-17 → 2020-03-19 · 5 obs

○ 2007-10-28 19:14:22
● 2015-06-17 16:01:34
● 2020-03-19 19:45:56
○ 2026-03-08 09:00:42
○ 2026-03-25 14:10:44

●NSns3-03.azure-dns.org2026-03-08 → 2026-03-25 · 3 obs

○ 2020-03-19 19:45:56
● 2026-03-08 09:00:42
● 2026-03-25 14:10:44

○NSns3.schoolspecialty.com2015-06-17 → 2020-03-19 · 5 obs

○ 2007-10-28 19:14:22
● 2015-06-17 16:01:34
● 2020-03-19 19:45:56
○ 2026-03-08 09:00:42
○ 2026-03-25 14:10:44

●NSns4-03.azure-dns.info2026-03-08 → 2026-03-25 · 3 obs

○ 2020-03-19 19:45:56
● 2026-03-08 09:00:42
● 2026-03-25 14:10:44

○NSns4.schoolspecialty.com2015-06-17 → 2020-03-19 · 5 obs

○ 2007-10-28 19:14:22
● 2015-06-17 16:01:34
● 2020-03-19 19:45:56
○ 2026-03-08 09:00:42
○ 2026-03-25 14:10:44

○MXcluster5.us.messagelabs.com2015-06-17 → 2015-06-17 · 4 obs

○ 2007-10-28 19:14:22
● 2015-06-17 16:01:34
○ 2015-11-23 16:11:42
○ 2026-03-25 14:10:44

○MXcluster5a.us.messagelabs.com2015-06-17 → 2015-06-17 · 4 obs

○ 2007-10-28 19:14:22
● 2015-06-17 16:01:34
○ 2015-11-23 16:11:42
○ 2026-03-25 14:10:44

●MXdeltaeducation-com.mail.protection.outlook.com2020-03-19 → 2026-03-25 · 3 obs

○ 2017-02-12 07:51:04
● 2020-03-19 19:45:56
● 2026-03-25 14:10:44

○MXmail.deltaeducation.com2007-10-28 → 2017-02-12 · 4 obs

● 2007-10-28 19:14:22
● 2017-02-12 07:51:04
○ 2020-03-19 19:45:56
○ 2026-03-25 14:10:44

○MXrelay.deltaeducation.com2007-10-28 → 2017-02-12 · 4 obs

● 2007-10-28 19:14:22
● 2017-02-12 07:51:04
○ 2020-03-19 19:45:56
○ 2026-03-25 14:10:44

○MXschoolspecialty.com.s7a1.psmtp.com2007-10-28 → 2007-10-28 · 3 obs

● 2007-10-28 19:14:22
○ 2015-06-17 16:01:34
○ 2026-03-25 14:10:44

○MXschoolspecialty.com.s7a2.psmtp.com2007-10-28 → 2007-10-28 · 3 obs

● 2007-10-28 19:14:22
○ 2015-06-17 16:01:34
○ 2026-03-25 14:10:44

○MXschoolspecialty.com.s7b1.psmtp.com2007-10-28 → 2007-10-28 · 3 obs

● 2007-10-28 19:14:22
○ 2015-06-17 16:01:34
○ 2026-03-25 14:10:44

○MXschoolspecialty.com.s7b2.psmtp.com2007-10-28 → 2007-10-28 · 3 obs

● 2007-10-28 19:14:22
○ 2015-06-17 16:01:34
○ 2026-03-25 14:10:44

○MXseg.trustwave.com2015-11-23 → 2017-02-12 · 5 obs

○ 2015-06-17 16:01:34
● 2015-11-23 16:11:42
● 2017-02-12 07:51:04
○ 2020-03-19 19:45:56
○ 2026-03-25 14:10:44

○A206.165.136.1292007-10-28 → 2007-10-28 · 3 obs

● 2007-10-28 19:14:22
○ 2015-06-17 16:01:34
○ 2026-03-25 14:10:44

○A54.175.191.622015-11-23 → 2020-03-19 · 5 obs

○ 2015-06-17 16:01:34
● 2015-11-23 16:11:42
● 2020-03-19 19:45:56
○ 2026-03-08 09:00:42
○ 2026-03-25 14:10:44

●A67.52.17.302026-03-08 → 2026-03-25 · 3 obs

○ 2020-03-19 19:45:56
● 2026-03-08 09:00:42
● 2026-03-25 14:10:44

○A67.52.17.422015-06-17 → 2015-06-17 · 4 obs

○ 2007-10-28 19:14:22
● 2015-06-17 16:01:34
○ 2015-11-23 16:11:42
○ 2026-03-25 14:10:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
deltaeducation.com	ns1-03.azure-dns.com, ns2-03.azure-dns.net, ns3-03.azure-dns.org, ns4-03.azure-dns.info	2 records

✅ Authoritative Response

Server:208.84.5.3

NS records: ns1-03.azure-dns.com, ns2-03.azure-dns.net, ns3-03.azure-dns.org, ns4-03.azure-dns.info

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for deltaeducation.com (unsigned zone)

⏱️ Timing

Total: 587ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`67.52.17.30`
NS	4	`ns1-03.azure-dns.com, ns2-03.azure-dns.net...`
MX	1	`deltaeducation-com.mail.protection.outlo`
TXT	3	`facebook-domain-verification=zo7be2ge0q9, MS=ms85468114...`
SOA	1	`ns1-03.azure-dns.com azuredns-hostmaster`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1-03.azure-dns.com, ns1-03.azure-dns.com)

Analysis

Hierarchy

deltaeducation.com is the parent of relay.deltaeducation.com.

IP Addresses

deltaeducation.com resolves to a single IP address: 67.52.17.30.

Other host names, for instance syn-067-052-017-030.biz.spectrum.com, share IP numbers with deltaeducation.com.

Name Servers

deltaeducation.com is delegated to four name servers: ns1-03.azure-dns.com, ns4-03.azure-dns.info, ns2-03.azure-dns.net and ns3-03.azure-dns.org.

deltaeducation.com at least partially shares name servers with other domains, including cobwebsolutions.com, taxfreeromania.ro, westvancouverschools.ca, microsofttablet.jp and 160.20.in-addr.arpa.

Hosts with two IP numbers:

Host ns1-03.azure-dns.com points to 2603:1061:0:700::3 and 13.107.236.3

Host ns4-03.azure-dns.info points to 2620:1ec:bda:700::3 and 208.84.5.3

Host ns2-03.azure-dns.net points to 2620:1ec:8ec:700::3 and 150.171.21.3

Host ns3-03.azure-dns.org points to 2a01:111:4000:700::3 and 204.14.183.3

Mail Servers

deltaeducation.com is handled by a single mail server, deltaeducation-com.mail.protection.outlook.com.

Hostname deltaeducation-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c902::4, 2a01:111:f403:c902::7, 2a01:111:f403:f902::2, 2a01:111:f403:f903::, 52.101.9.0, 52.101.10.18, 52.101.41.56 and 52.101.42.18.

deltaeducation.com - robtex.com