`coursedig.com`

DNSSEC	⚠️ Not signed
A	3.167.69.2^{🇺🇸 Amazon3.167.64.0/21}
		PTR	`server-3-167-69-2.iad61.r.cloudfront.net`
A	3.167.69.72^{🇺🇸 Amazon3.167.64.0/21}
A	3.167.69.74^{🇺🇸 Amazon3.167.64.0/21}
A	3.167.69.79^{🇺🇸 Amazon3.167.64.0/21}
NS	`ns-1796.awsdns-32.co.uk` ⭐
		A	2600:9000:5307:400::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1796.awsdns-32.co.uk`
		A	205.251.199.4^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1796.awsdns-32.co.uk`
NS	`ns-1177.awsdns-19.org`
		A	2600:9000:5304:9900::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1177.awsdns-19.org`
		A	205.251.196.153^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1177.awsdns-19.org`
NS	`ns-576.awsdns-08.net`
		A	2600:9000:5302:4000::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-576.awsdns-08.net`
		A	205.251.194.64^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-576.awsdns-08.net`
NS	`ns-88.awsdns-11.com`
		A	2600:9000:5300:5800::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-88.awsdns-11.com`
		A	205.251.192.88^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-88.awsdns-11.com`
MX	`mail.coursedig.com` ⭐
		A	108.167.172.143^{Jacksonville108.167.172.0/23}
TXT	`v=spf1 a mx include:websitewelcome.com ~all`
SOA	`ns-1796.awsdns-32.co.uk`awsdns-hostmaster@amazon.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=1771291435

Same first word

coursedig.com

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DNS History

17 records (9 active, 8 former)

○NSns-1110.awsdns-10.org2026-03-23 → 2026-03-23 · 2 obs

○ 2026-03-23 05:48:18
○ 2026-03-23 05:48:22

●NSns-1177.awsdns-19.org2026-03-23 → 2026-03-23 · 3 obs

○ 2017-06-02 23:33:40
● 2026-03-23 05:48:18
● 2026-03-23 05:48:22

●NSns-1796.awsdns-32.co.uk2026-03-23 → 2026-03-23 · 3 obs

○ 2017-06-02 23:33:40
● 2026-03-23 05:48:18
● 2026-03-23 05:48:22

○NSns-1870.awsdns-41.co.uk2026-03-23 → 2026-03-23 · 2 obs

○ 2026-03-23 05:48:18
○ 2026-03-23 05:48:22

○NSns-257.awsdns-32.com2026-03-23 → 2026-03-23 · 2 obs

○ 2026-03-23 05:48:18
○ 2026-03-23 05:48:22

○NSns-548.awsdns-04.net2026-03-23 → 2026-03-23 · 2 obs

○ 2026-03-23 05:48:18
○ 2026-03-23 05:48:22

●NSns-576.awsdns-08.net2026-03-23 → 2026-03-23 · 3 obs

○ 2017-06-02 23:33:40
● 2026-03-23 05:48:18
● 2026-03-23 05:48:22

●NSns-88.awsdns-11.com2026-03-23 → 2026-03-23 · 3 obs

○ 2017-06-02 23:33:40
● 2026-03-23 05:48:18
● 2026-03-23 05:48:22

○NSns23.ixwebhosting.com2015-05-26 → 2017-06-02 · 4 obs

● 2015-05-26 10:34:14
● 2017-06-02 23:33:40
○ 2026-03-23 05:48:18
○ 2026-03-23 05:48:22

○NSns24.ixwebhosting.com2015-05-26 → 2017-06-02 · 4 obs

● 2015-05-26 10:34:14
● 2017-06-02 23:33:40
○ 2026-03-23 05:48:18
○ 2026-03-23 05:48:22

●MXmail.coursedig.com2026-03-23 → 2026-03-23 · 3 obs

○ 2017-06-02 23:33:40
● 2026-03-23 05:48:18
● 2026-03-23 05:48:22

○MXmail1214.ixwebhosting.com2015-05-26 → 2017-06-02 · 4 obs

● 2015-05-26 10:34:14
● 2017-06-02 23:33:40
○ 2026-03-23 05:48:18
○ 2026-03-23 05:48:22

●A3.167.69.22026-03-23 → 2026-03-23 · 3 obs

○ 2017-06-02 23:33:40
● 2026-03-23 05:48:18
● 2026-03-23 05:48:22

●A3.167.69.722026-03-23 → 2026-03-23 · 3 obs

○ 2017-06-02 23:33:40
● 2026-03-23 05:48:18
● 2026-03-23 05:48:22

●A3.167.69.742026-03-23 → 2026-03-23 · 3 obs

○ 2017-06-02 23:33:40
● 2026-03-23 05:48:18
● 2026-03-23 05:48:22

●A3.167.69.792026-03-23 → 2026-03-23 · 3 obs

○ 2017-06-02 23:33:40
● 2026-03-23 05:48:18
● 2026-03-23 05:48:22

○A76.162.156.1852015-05-26 → 2017-06-02 · 4 obs

● 2015-05-26 10:34:14
● 2017-06-02 23:33:40
○ 2026-03-23 05:48:18
○ 2026-03-23 05:48:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, f.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net...	-
coursedig.com	ns-88.awsdns-11.com, ns-576.awsdns-08.net, ns-1177.awsdns-19.org, ns-1796.awsdns-32.co.uk	1 record

✅ Authoritative Response

Server:205.251.192.88

NS records: ns-88.awsdns-11.com, ns-576.awsdns-08.net, ns-1177.awsdns-19.org, ns-1796.awsdns-32.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursedig.com (unsigned zone)

⏱️ Timing

Total: 886ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.167.69.79, 3.167.69.2...`
NS	4	`ns-1177.awsdns-19.org, ns-1796.awsdns-32.co.uk...`
MX	1	`mail.coursedig.com (pri: 0)`
TXT	1	`v=spf1 a mx include:websitewelcome.com ~`
SOA	1	`ns-1796.awsdns-32.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-88.awsdns-11.com)

Analysis

IP Addresses

coursedig.com maps to four IP numbers: 3.167.69.2, 3.167.69.72, 3.167.69.74 and 3.167.69.79.

Name Servers

coursedig.com is delegated to four name servers: ns-88.awsdns-11.com, ns-576.awsdns-08.net, ns-1177.awsdns-19.org and ns-1796.awsdns-32.co.uk.

Host names with two IP numbers:

ns-88.awsdns-11.com points to: 2600:9000:5300:5800::1 and 205.251.192.88

ns-576.awsdns-08.net points to: 2600:9000:5302:4000::1 and 205.251.194.64

ns-1177.awsdns-19.org points to: 2600:9000:5304:9900::1 and 205.251.196.153

ns-1796.awsdns-32.co.uk points to: 2600:9000:5307:400::1 and 205.251.199.4

Mail Servers

The mail.coursedig.com mail server handles coursedig.com.

Host mail.coursedig.com points to IP 108.167.172.143.

coursedig.com - robtex.com

coursedig.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`coursedig.com`

`com`