coursework.co - dns.ninja

`coursework.co`

DNSSEC	⚠️ Not signed
A	23.227.38.65^{🇨🇦 Cloudflare23.227.38.0/23 Shopify 151 O'Connor Street, Ground floor Ottawa ON K2P 2L8 Canada}
		PTR	`myshopify.com`
NS	`ns33.domaincontrol.com` ⭐
		A	2603:5:21a1::11^{🇺🇸 GODADDY-DNS2603:5:21a0::/44}
			PTR	`ns33.domaincontrol.com`
		A	97.74.106.17^{🇺🇸 GODADDY-DNS97.74.106.0/23}
			PTR	`ns33.domaincontrol.com`
NS	`ns34.domaincontrol.com`
		A	2603:5:22a1::11^{🇺🇸 GODADDY-DNS2603:5:22a0::/44}
			PTR	`ns34.domaincontrol.com`
		A	173.201.74.17^{🇺🇸 GODADDY-DNS173.201.74.0/23}
			PTR	`ns34.domaincontrol.com`
MX	`coursework-co.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c801::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr0501cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01602.inbound.protection.outlook.com`
		A	2a01:111:f403:c936::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy1pr05cu00400.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch1pr04cu00101.inbound.protection.outlook.com`
		A	52.101.9.11^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr04cu00103.inbound.protection.outlook.com`
		A	52.101.9.20^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr02cu00604.inbound.protection.outlook.com`
		A	52.101.11.19^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sa9pr04cu00203.inbound.protection.outlook.com`
		A	52.101.194.15^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch4pr21cu00107.inbound.protection.outlook.com`
TXT	`NETORGFT10925628.onmicrosoft.com`
TXT	`v=spf1 include:secureserver.net -all`
TXT	`google-site-verification=duwwHlP463Rn_woSzSdSLPDhrFqPvxc541zvQ9mCFaA`
SOA	`ns33.domaincontrol.com`dns@jomax.net 2026-07-27 #0

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759725707

Same first word

coursework.net

coursework.com

coursework.app

coursework.co

coursework.de

coursework.info

coursework.co.uk

Similar names

workcourse.com

sucoworker.cz

worksource.net

worksource.co

worksource.io

cuoreworks.com

worksource.com

coeurworks.xyz

sourcework.com

sourcework.nl

worksource.de

workcourse.de

DNS History

8 records (4 active, 4 former)

○NSns21.ixwebhosting.com2015-07-03 → 2017-02-01 · 4 obs

● 2015-07-03 11:13:52
● 2017-02-01 17:01:32
○ 2019-12-21 20:59:52
○ 2026-08-05 21:41:26

○NSns22.ixwebhosting.com2015-07-03 → 2017-02-01 · 4 obs

● 2015-07-03 11:13:52
● 2017-02-01 17:01:32
○ 2019-12-21 20:59:52
○ 2026-08-05 21:41:26

●NSns33.domaincontrol.com2026-04-05 → 2026-08-05 · 3 obs

○ 2019-12-21 20:59:52
● 2026-04-05 08:23:14
● 2026-08-05 21:41:26

●NSns34.domaincontrol.com2026-04-05 → 2026-08-05 · 3 obs

○ 2019-12-21 20:59:52
● 2026-04-05 08:23:14
● 2026-08-05 21:41:26

●MXcoursework-co.mail.protection.outlook.com2026-04-05 → 2026-08-05 · 3 obs

○ 2019-12-21 20:59:52
● 2026-04-05 08:23:14
● 2026-08-05 21:41:26

○MXmail1115.ixwebhosting.com2015-07-03 → 2017-02-01 · 4 obs

● 2015-07-03 11:13:52
● 2017-02-01 17:01:32
○ 2019-12-21 20:59:52
○ 2026-08-05 21:41:26

●A23.227.38.652026-04-05 → 2026-08-05 · 3 obs

○ 2019-12-21 20:59:52
● 2026-04-05 08:23:14
● 2026-08-05 21:41:26

○A76.163.147.42015-07-03 → 2017-02-01 · 4 obs

● 2015-07-03 11:13:52
● 2017-02-01 17:01:32
○ 2019-12-21 20:59:52
○ 2026-08-05 21:41:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co	-
coursework.co	ns33.domaincontrol.com, ns34.domaincontrol.com	-

✅ Authoritative Response

Server:97.74.106.17

NS records: ns33.domaincontrol.com, ns34.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursework.co (unsigned zone)

⏱️ Timing

Total: 298ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`23.227.38.65`
NS	2	`ns33.domaincontrol.com, ns34.domaincontrol.com`
MX	1	`coursework-co.mail.protection.outlook.co`
TXT	3	`NETORGFT10925628.onmicrosoft.com, v=spf1 include:secureserver.net -all...`
SOA	1	`ns33.domaincontrol.com dns.jomax.net`

Analysis

IP Addresses

coursework.co points to a single IP number: 23.227.38.65.

Additional host names — regenbogenschwarz.com, snapesim.com, nimh.asisam.de and two others — share IP numbers with coursework.co.

Name Servers

The NS records for coursework.co delegate to ns33.domaincontrol.com and ns34.domaincontrol.com.

coursework.co shares its name server setup with other domains, including ranchosantafelongevitycenter.com, eruconsulting.com, takeoutthatdoesntsuck.com and two others.

ns33.domaincontrol.com resolves to 97.74.106.17 and 2603:5:21a1::11. Likewise, ns34.domaincontrol.com resolves to 173.201.74.17 and 2603:5:22a1::11 — two IP addresses apiece.

Mail Servers

coursework.co has one mail server: coursework-co.mail.protection.outlook.com.

coursework-co.mail.protection.outlook.com points to 8 IP numbers: 52.101.9.11, 52.101.9.20, 52.101.11.19 and 5 other.